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RS485/USB-B Serial Converter Module
The RS485/USB-V Serial Converter Module is an industrial-grade USB-to-RS485 interface designed to provide reliable serial communication between a host computer and RS485-compatible devices. Built around the CH340B USB-to-UART bridge and MAX487 RS485 transceiver, the module offers a compact and reliable solution for industrial automation, embedded systems, instrumentation, and other industrial communication applications.
Designed for dependable operation in demanding environments, the module incorporates industrial-grade protection circuitry and an optimized PCB layout to improve reliability and noise immunity. A USB Type-B connector enables convenient plug-and-play operation, while onboard Power, TX, and RX LEDs provide communication status indication. Field connections are made through a four-position screw terminal exposing 5 V, GND, RS485 A, and RS485 B signals.
Features:
- CH340B USB-to-UART Bridge.
- MAX487 Half-Duplex RS485 Transceiver:
Compliant with TIA/EIA-485 Standard.
Maximum Data Rate: 250 kbps.
Multi-Drop Bus network topology.
Supports up to 128 nodes.
- USB Type-B Female Connector:
USB Powered (5V).
UART Baud Rate up to 2 Mbps (Limited to 250 Kbps by MAX487).
- On-board 120 Ω bus termination resistor.
- Supports Windows 7, 8, 10, and 11 (32-bit & 64-bit).
- Industrial Protection Circuitry.
Resettable PTC Fuse.
Ferrite Bead for EMI/ESD Suppression.
Reverse-Polarity Protection.
- Optimized PCB Grounding for Improved Noise Immunity.
- Isolated USB Shield Ground Connection.
- Onboard Status LEDs:
GREEN: Power Indicator.
YELLOW: TX and RX Activity Indicator.
- Four-Pin Screw Terminal (5V, 0V, A, B).
- Compact, Plug-and-Play Design.
- Dimensions: 45.7 X 2.8mm.
8.75 $In stock
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ESP-01 Programmer Adapter
The ESP-01 Programmer / Adapter provides a convenient USB interface for programming, debugging, and communicating with ESP-01 modules. It integrates a CH340C USB-to-UART converter, NodeMCU-style automatic reset and flash circuitry. A dedicated 6-pin male header provides direct access to GND, 3.3 V, RX, TX, IO0, and IO2, allowing IO0 and IO2 to be conveniently used as external GPIOs.
Features:
- ESP-01 Interface: 8-pin female header for direct connection to ESP-01 modules.
- USB Interface: USB Type-B connector with integrated CH340C USB-to-UART converter.
- 3.3 V Power Supply: Buck-regulated 3.3 V output, up to 600 mA.
- UART Access: Direct RX and TX connections through the external header.
- GPIO Access: IO0 and IO2 exposed through the external header for convenient GPIO use.
- Programming:
- Automatic: NodeMCU-style auto-reset and auto-flash circuitry.
- Manual: Dedicated RESET and FLASH buttons.
- Status Indicators:
- Green: PWR LED.
- Yellow: TX/RX activity LEDs.
- Grounding: Chassis ground isolated from circuit ground.
- PCB Dimensions: 43.4 mm × 26.8 mm.
5.50 $In stock
ESP-01 Programmer Adapter
5.50 $ -
ESP32 Development Kit
This educational development board provides a simple, reliable setup for learning embedded systems and building IoT projects using the ESP32 microcontroller. Designed as an all-in-one hardware ecosystem, it features a safe power supply circuit that protects components and maintains clean signals for accurate sensor readings. The platform hosts a curated selection of essential components, including basic displays, standard sensor connectors, and safe relay switches for external loads. By gathering everything onto one organized board, it completely removes the hassle of messy wires and breadboards, making it easier for students and hobbyists to test their code directly.
This price includes only ESP32 kit without accessories. To add more accessories please click below.
Features:
- ESP32 DEVKIT.
- Wide DC input range or USB powered (via DC Jack).
- Direct Keypad Unit.
- General Outputs Unit involves:
- Three discrete output LEDs (Red, Green, Blue).
- Two output relays with LED indicators.
- One active output buzzer.
- 2X16 Character LCD with variable contrast and backlight control via.
- 128X64 OLED display socket.
- Three digits 7-segment display with BCD decoding.
- Multi-Sensor Interface Sockets:
- DHT11 Temperature & Humidity socket.
- HC-SR04 Ultrasonic Distance sensor socket.
- PIR Motion sensor socket.
- Analog Input Platform (Adjustable Potentiometer & Onboard LDR).
- Dedicated DIP switches for hardware peripheral isolation.
- All primary GPIOs are brought out to terminal pin headers.
45.00 $In stock
ESP32 Development Kit
45.00 $ -
ATmega128 Module (F128C)
The ATmega128 Module (F128C) is an industrial-grade development platform based on the ATmega128 8-bit AVR microcontroller. It provides easy access to all MCU I/O pins through 2.54 mm headers and features a USB Type-C connector with a CH340C USB-to-UART interface for serial communication and power.
The module supports USB bootloader programming after a compatible bootloader is installed via ISP. It includes 10-pin and 6-pin AVR ICSP headers, a 16 MHz crystal oscillator, and ESD and surge protection for reliable operation. The F128C is suitable for industrial control, embedded development, education, laboratory applications, and rapid prototyping.
Features:
- ATmega128 8-bit AVR microcontroller (128 KB Flash, 4 KB SRAM, 4 KB EEPROM).
- AVCC, AREF, XTAL1, XTAL2, RESET, VCC (5V), and GND pins available on headers.
- USB Type-C Interface with CH340C USB-to-UART converter (USART0).
- Standard 10-pin and compact 6-pin AVR ICSP programming headers.
- All MCU I/O pins exposed through 2.54 mm headers.
- Powered via USB Type-C or 5 V pin header.
- On-board 16 MHz crystal oscillator.
- On-board Reset push button.
- ESD and surge protection.
- Green PWR LED for power status.
- TX and RX Red LEDs for UART activity.
- Industrial-grade PCB design.
- Supports USB bootloader programming*.
- PCB Dimensions: 81.3 mm × 35.6 mm.
*A compatible bootloader must be installed via ISP to enable USB programming.
21.25 $In stock
ATmega128 Module (F128C)
21.25 $ -
ATmega32 Development Board
The ATmega32 Development Board is a low-cost Atmel AVR development kit based on the ATmega32 microcontroller. It provides the essential interface circuits for the microcontroller, making it an ideal choice for undergraduate laboratories, hobbyists, and beginners.
Features:
- Microcontroller: ATmega32A with a 16 MHz external crystal for reliable high-speed performance.
- USB Interface: Integrated CH340G for direct PC connectivity, programming, and serial debugging.
- Real-Time Clock: On-board DS3231 RTC with battery backup for high-precision timekeeping.
- External Memory: 24C08 (1K) Serial EEPROM via I2C for nonvolatile data storage and logging.
- Visual Feedback: Includes three programmable LEDs, a power indicator, and dedicated RX/TX status LEDs.
- Connectivity: Full breakout of all 40 pins via headers, plus a dedicated 6-pin ICSP port for external programmers.
- Utility: An on-board hardware reset button and a programmable user switch (connected to PB4) for interactive testing.
25.00 $In stock
ATmega32 Development Board
25.00 $ -
ARM STM32F401 Black Pill Breakout Board
Small handy board on which you can plug your Black Pill development board with screw terminals to get much easier to the GPIO pins.
Features :
- All Black Pill pins are provided to 3.5mm pitch screw clamp terminals for easy access.
- Screw terminals are clearly silkscreen labeled (top and bottom) to clarify the connection.
- Four (Ø 3mm) mounting holes for easy installation.
- Dimensions: 89 x 60 x 12 mm.
5.00 $In stock
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5V/3A DC-DC Buck Converter Module (LM2596)
A compact DC-DC Buck Converter based on LM2596, designed as a direct 7805 replacement. It offers higher efficiency, a wide input range (7–40V), and up to 3A output current.
Features :
- Direct 7805 Replacement: Pin-compatible with standard 7805 linear regulator (IN, GND, OUT).
- High Current Output: Supports up to 3A continuous load current, much higher than the 7805 (1A max).
- Wide Input Voltage Range: Operates from 7V to 40V DC, offering greater flexibility compared to linear regulators.
- High Efficiency: Up to 90% conversion efficiency, significantly reducing heat generation.
- Compact Size: Miniature PCB design for easy integration in projects with limited space.
- Low Heat Dissipation: Minimal power loss thanks to switching regulator technology, eliminating the need for bulky heatsinks.
- Stable Output: Provides regulated 5V output suitable for powering microcontrollers, sensors, and other digital circuits.
- Dimensions(LXWXH): 23 X19 X15 mm
2.50 $In stock
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12V/3A DC-DC Buck Converter Module (LM2596)
A compact DC-DC Buck Converter based on LM2596, designed as a direct 7812 replacement. It offers higher efficiency, a wide input range (14–40V), and up to 3A output current.
Features :
- Direct 7812 Replacement: Pin-compatible with standard 7812 linear regulator (IN, GND, OUT).
- High Current Output: Supports up to 3A continuous load current, much higher than the 7812 (1A max).
- Wide Input Voltage Range: Operates from 14V to 40V DC, offering greater flexibility compared to linear regulators.
- High Efficiency: Up to 90% conversion efficiency, significantly reducing heat generation.
- Compact Size: Miniature PCB design for easy integration in projects with limited space.
- Low Heat Dissipation: Minimal power loss thanks to switching regulator technology, eliminating the need for bulky heatsinks.
- Stable Output: Provides regulated 12V output suitable for powering microcontrollers, sensors, and other digital circuits.
- Dimensions(LXWXH): 23 X19 X15 mm.
2.50 $Out of stock
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8-Channel Non-Isolated Positive Triggered Relay Module (RM8VE)
8-Channel 5V relay module with wide 5–40V input range, LM2576 power regulation, ULN2803 driver, and screw terminals for easy wiring.
Features :
- 8-Channel relay module using T73 relays (rated 10A for resistive loads; recommended ≤ 5A for inductive loads).
- Wide input voltage range: 5V to 40V selectable via 3-pin jumper.
- 5–7V mode: Direct input to relays.
- 7–40V mode: Onboard LM2576 buck converter outputs stable 5V.
- Relay coil voltage: 5V for all channels.
- Compatible trigger signal range: 3V to 24V.
- Integrated ULN2803 driver IC with built-in flyback diodes for relay protection.
- Additional reverse polarity protection diode on power input.
- Each relay has LED indicator for status visualization.
- Output terminals: 3-pin screw connectors (NC, COM, NO) per relay.
- Input & power via 10-pin screw terminal (2 power pins + IN1 to IN8).
- High-quality PCB with white silkscreen legend for easy wiring identification.
- Four mounting holes (Ø 3.5 mm) for secure installation.
12.50 $In stock
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1-Channel Isolation Module
1-channel opto-isolated module suitable for voltage level converting.
Features :
- Two selectable Input control signal ranges (3-12V and 9-24V).
- Output signal range: 3-24V.
- LED indicator for each input.
- Dedicated 2-pin screw clamp terminal for each input and output.
- Output can drive high or low-triggered load.
- Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 50 X 23 X 17mm.
2.00 $In stock
1-Channel Isolation Module
2.00 $ -
2-Channel Isolation Module
2-channel opto-isolated module suitable for voltage level converting.
Features :
- Two selectable Input control signal ranges (3-12V and 9-24V).
- Output signal range: 3-24V.
- LED indicator for each input.
- Dedicated 2-pin screw clamp terminal for each input and output.
- Output can drive high or low-triggered load.
- Four (Ø 3.5mm) mounting holes for easy installation.
- DIN Rail mounting using PCB carrier or PCB bracket ( Optional ).
- Dimensions: 50 X 50 X 17mm.
3.50 $In stock
2-Channel Isolation Module
3.50 $ -
8-Channel Serial Relay Module
SRM8 is an 8-channel relay module designed to allow expanding microcontroller I/O pins. SRM8 is based on the 8-bit shift register 74595 IC. It supports 8 output relays while using only three I/Os. SRM8 can be daisy-chained to further extend the outputs to theoretically an infinite number while still using the same three microcontroller I/O pins. SRM8 module can be supplied from a wide range of voltages (5-40V). The input control signals are Digital Input (DI), Clock (CK), and Load (LD). Every time the shift register Clock input receives a low to high transition it accepts the data input value to bit0 and shifts the internal register data by one bit. Thus, 8 clock pulses are required to get one-byte data from the microcontroller. Finally, a latch pulse is required to load all internal shift register data to parallel outputs (Relays). This control sequence can be performed using a hardware-implemented SPI or a few lines of written code.
Features:
- Supports: 8-channel output relays.
- Protocol: SPI.
- Wide operating voltage range: 5-40V (two selectable ranges).
- Input signals (TTL): Data Input (DI), Clock (CK), and Load (LD).
- Output signals (TTL): Data Output (DO), Clock (CK), and Load (LD).
- Power-on relay status is OFF (a reset operation is auto-applied up on power on).
- Green LED for power indication.
- Red LED indicator for each output relay.
- Both normal open and normal close terminals are available.
- Reverse polarity protection for power input.
- Input and output signals are available via screw clamp terminals as well as pin headers for flexibility.
- SRM8 module can be daisy-chained to obtain a large number of relay outputs.
- The power connector is duplicated to facilitate the daisy chain board-to-board power connection of up to 16 modules, To connect more SRM8 modules use external wiring.
- Mounting: Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 207 X 45 X 18mm.
17.50 $In stock
8-Channel Serial Relay Module
17.50 $ -
7A/4-Channel Solid State Relay Module
Features:
- Number of supported channels: 4 independent channels.
- Input signal range: DC 3-30V.
- AC switching voltage: AC 24-250V.
- AC switching device: BTA16-600B.
- Maximum load current 7 amperes.
- A proper heatsink is used for overheating dissipation.
- All channels are opto-isolated.
- Each output has its own fuse for overcurrent protection.
- Each output has an AC snubber circuit (RC+varistor) for suppressing voltage spikes that arise from inductive loads.
- Input signals have reverse polarity protection.
- LED indicator for each input.
- Four (Ø 3.5 mm) mounting holes for easy installation.
- DIN Rail mounting using PCB carrier or PCB bracket (optional).
- Dimensions: 198 X 72 X 30 mm.
25.00 $In stock
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5A/4-Channel Solid State Relay Module
Features:
- Number of supported channels: 4 independent channels.
- Input signal range: DC 3-30V.
- AC switching voltage: AC 24-250V.
- AC switching device: BTA16-600B.
- Maximum load current 5 Ampere.
- A proper heatsink is used for overheating dissipation.
- All channels are opto-isolated.
- Each output has its own fuse for overcurrent protection.
- Each output has an AC snubber circuit (RC+Varistor) for suppressing voltage spikes that arise from inductive loads.
- Input signals have reverse polarity protection.
- LED indicator for each input.
- Four (Ø 3.5mm) mounting holes for easy installation.
- DIN Rail mounting using PCB carrier or PCB bracket ( Optional ).
- Dimensions: 198 X 72 X 22mm.
22.50 $In stock
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ARM Development Kit (Panda+)
Panda+ kit is an ARM development kit based on Black Pill module which supports 32-bit ARM Cortex-M4 microprocessor STM32F401RCT6.
This price includes only Panda+ kit without accessories. To add more accessories please click below.
47.50 $In stock
ARM Development Kit (Panda+)
47.50 $ -
8-Channel USB-Controlled Relay Module
RM8U is an 8-channel USB-controlled relay module. It can be used to control electrical devices remotely from a PC over a USB port such as lamps, motors, and locks. RM8U features a wide operating voltage range (9-40V) and supports serial communication baud rate speeds starting from 2400 up to 115200 bps. RM8U module is well protected, filtered, and fully isolated.
Features:
- Supports Windows XP, 7, 10, and 11.
- Supports 8 relay outputs.
- Wide operating voltage range: 9~40 DCV.
- Control: Serial communication.
- Driver: CH340.
- Supported baud rates: 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 76800, and 115200.
- Interface: USB type B connector.
- Simple control protocol: Just two-character commands.
- All outputs are optically isolated.
- Both normally open and normally close relay contacts are available.
- Reverse polarity protection.
- On-board DC power filter.
- Power LED indicator.
- Serial communication LED status.
- LED indicator for each relay.
- Mounting: Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 214 X 55 X 21mm.
27.50 $In stock
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4-Channel USB-Controlled Relay Module
RM4U is a 4-channel USB-controlled relay module. It can be used to control electrical devices remotely from a PC over a USB port such as lamps, motors, and locks. RM4U features a wide operating voltage range (9-40V) and supports serial communication baud rate speeds starting from 2400 up to 115200 bps. RM4U module is well protected, filtered, and fully isolated.
Features:
- Supports Windows XP, 7, 10, and 11.
- Supports 4 relay outputs.
- Wide operating voltage range: 9~40 DCV.
- Control: Serial communication.
- Driver: CH340.
- Supported baud rates: 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 76800, and 115200.
- Interface: USB type B connector.
- Simple control protocol: Just two-character commands.
- All outputs are optically isolated.
- Both normally open and normally close relay contacts are available.
- Reverse polarity protection.
- On-board DC power filter.
- Power LED indicator.
- Serial communication LED status.
- LED indicator for each relay.
- Mounting: Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 144 X 55 X 21mm.
22.50 $In stock
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2-Channel USB-Controlled Relay Module
RM2U is a 2-channel USB-controlled relay module. It can be used to control electrical devices remotely from a PC over a USB port such as lamps, motors, and locks. RM2U features a wide operating voltage range (9-40V) and supports serial communication baud rate speeds starting from 2400 up to 115200 bps. RM2U module is well protected, filtered, and fully isolated.
Features:
- Supports Windows XP, 7, 10, and 11.
- Supports two relay outputs.
- Wide operating voltage range: 9~40 DCV.
- Control: Serial communication.
- Driver: CH340.
- Supported baud rates: 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 76800, and 115200.
- Interface: USB type B connector.
- Simple control protocol: Just two-character commands.
- All outputs are optically isolated.
- Both normally open and normally close relay contacts are available.
- Reverse polarity protection.
- On-board DC power filter.
- Power LED indicator.
- Serial communication LED status.
- LED indicator for each relay.
- Mounting: Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 100 X 55 X 21mm.
20.00 $In stock
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6-Channel Wireless Relay Module ESP-12F (RM6W)
The RM6W is a 6-channel Wi-Fi module based on the ESP-12F module which is based on the ESP8266 chip from Espressif. The ESP-12F includes 4MB of flash and supports 802.11b/g/n Wi-Fi SOC. The ESP-12F can be programmed serially via the 4-pin header. The card is well-protected, filtered, and easy to install. The RM6W outputs can drive loads up to 10A (resistive load).
Features:
- Based on ESP-12F Wi-Fi module.
- On-board 3.3V regulator AMS1117-3.3V.
- Power input is filtered for noise reduction.
- Green LED for power indication.
- Operating voltage DC5V.
- Six output relays with red LED indicators.
- Both normal open and normal close terminals are available.
- Output terminals are available through a 5mm 2-pin K128 screw clamp.
- Easy firmware uploading using a 4-pin header (3.3V, Tx, Rx, GND).
- Reset push button switch is included.
- Two yellow LEDs for Tx and Rx signal indication.
- DIN Rail mountable.
- Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 165 x 50 x 18 mm.
17.50 $22.50 $Out of stock
6-Channel Wireless Relay Module ESP-12F (RM6W)
17.50 $22.50 $ -
2-Channel Wireless Relay Module ESP-12F (RM2W)
The RM2W is a 2-channel Wi-Fi module based on the ESP-12F module which is based on the ESP8266 chip from Espressif. The ESP-12F includes 4MB of flash and supports 802.11b/g/n Wi-Fi SOC. The ESP-12F can be programmed serially via the 4-pin header. The card is well-protected, filtered, and easy to install. The RM2W outputs can drive loads up to 10A (resistive load).
Features:
- Based on ESP-12F Wi-Fi module.
- On-board 3.3V regulator AMS1117-3.3V.
- Power input is filtered for noise reduction.
- Green LED for power indication.
- Operating voltage DC5V.
- Two output relays with red LED indicators.
- Both normal open and normal close terminals are available.
- Output terminals are available through a 5mm 2-pin K128 screw clamp.
- Easy firmware uploading using a 4-pin header (3.3V, Tx, Rx, GND).
- Reset push button switch is included.
- Two yellow LEDs for Tx and Rx signal indication.
- DIN Rail mountable.
- Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 98 x 50 x 18 mm.
12.50 $15.00 $Out of stock
2-Channel Wireless Relay Module ESP-12F (RM2W)
12.50 $15.00 $ -
4-Channel Wireless Relay Module ESP-12F (RM4W)
The RM4W is a 4-channel Wi-Fi module based on the ESP-12F module which is based on the ESP8266 chip from Espressif. The ESP-12F includes 4MB of flash and supports 802.11b/g/n Wi-Fi SOC. The ESP-12F can be programmed serially via the 4-pin header. The card is well-protected, filtered, and easy to install. The RM4W outputs can drive loads up to 10A (resistive load).
Features:
- Based on ESP-12F Wi-Fi module.
- On-board 3.3V regulator AMS1117-3.3V.
- Power input is filtered for noise reduction.
- Green LED for power indication.
- Operating voltage DC5V.
- Four output relays with red LED indicators.
- Both normal open and normal close terminals are available.
- Output terminals are available through a 5mm 2-pin K128 screw clamp.
- Easy firmware uploading using a 4-pin header (3.3V, Tx, Rx, GND).
- Reset push button switch is included.
- Two yellow LEDs for Tx and Rx signal indication.
- DIN Rail mountable.
- Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 130 x 50 x 18 mm.
15.00 $20.00 $Out of stock
4-Channel Wireless Relay Module ESP-12F (RM4W)
15.00 $20.00 $ -
8-Channel Wireless Relay Module nRF24L01+ (RM8N)
The RM8N is an 8-channel wireless relay module based on the nRF24L01+ chip from Nordic Semiconductor. The nRF24L01 module is designed to operate in the global 2.4GHz ISM frequency band and uses GFSK modulation to transmit data. The card is well-protected, filtered, and easy to install. RM8N outputs can drive loads up to 10A (resistive loads).
Features:
- Based on nRF24L01+ module.
- On-board 3.3V,5V regulator.
- Power input is filtered for noise reduction.
- LED for power indication.
- Operating voltage DC12V.
- Eight output relays with red LED indicators.
- Both normal open and normal close terminals are available.
- Relay outputs are available through 5mm 2-pin K128 screw clamp terminals.
- Easy configuration and test.
- Reset push button switch is included.
- DIN Rail mountable.
- Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 196 X 50 X 18mm.
25.00 $In stock
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4-Channel Wireless Relay Module nRF24L01+ (RM4N)
The RM4N is a 4-channel wireless relay module based on the nRF24L01+ chip from Nordic Semiconductor. The nRF24L01 module is designed to operate in the global 2.4GHz ISM frequency band and uses GFSK modulation to transmit data. The card is well-protected, filtered, and easy to install. RM4N outputs can drive loads up to 10A (resistive loads).
Features:
- Based on nRF24L01+ module.
- On-board 3.3V,5V regulator.
- Power input is filtered for noise reduction.
- LED for power indication.
- Operating voltage DC12V.
- Four output relays with red LED indicators.
- Both normal open and normal close terminals are available.
- Relay outputs are available through 5mm 2-pin K128 screw clamp terminals.
- Easy configuration and test.
- Reset push button switch is included.
- DIN Rail mountable.
- Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 132 X 50 X 18mm.
17.50 $In stock
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2-Channel Wireless Relay Module nRF24L01+ (RM2N)
The RM2N is a 2-channel wireless relay module based on the nRF24L01+ chip from Nordic Semiconductor. The nRF24L01 module is designed to operate in the global 2.4GHz ISM frequency band and uses GFSK modulation to transmit data. The card is well-protected, filtered, and easy to install. RM2N outputs can drive loads up to 10A (resistive loads).
Features:
- Based on nRF24L01+ module.
- On-board 3.3V,5V regulator.
- Power input is filtered for noise reduction.
- LED for power indication.
- Operating voltage DC12V.
- Two output relays with red LED indicators.
- Both normal open and normal close terminals are available.
- Relay outputs are available through 5mm 2-pin K128 screw clamp terminals.
- Easy configuration and test.
- Reset push button switch is included.
- DIN Rail mountable.
- Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 100 X 50 X 18mm.
14.00 $In stock
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Serial TTL to Wireless nRF Module SNM-H
SNM-H module is a smart serial USB (H-type connector) to wireless module based on the nRF24L01+ from Nordic Semiconductor and uses the controller ATMEGA8.
The nRF24L01+ module is designed to operate in the global 2.4GHz ISM frequency band and uses GFSK modulation to transmit data.
ATMEGA8 microcontroller comes pre-programmed to support RMxN relay modules protocol. However, the user can program ATMEGA8 microcontroller with other firmware.
SNM-H module uses a CH340 chip as a USB to Serial converter.
Features:
- Compatible with the protocol of RMxN wireless relay module.
- USB interface: USB type H connector.
- Driver: CH340.
- Baud rate: 115200.
22.50 $Out of stock
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Serial USB-B to Wireless nRF Module (SNM-B)
SNM-B module is a smart serial USB (B-type connector) to wireless module based on the nRF24L01+ from Nordic Semiconductor and uses the controller ATMEGA8.
The nRF24L01+ module is designed to operate in the global 2.4GHz ISM frequency band and uses GFSK modulation to transmit data.
ATMEGA8 microcontroller comes pre-programmed to support RMxN relay modules protocol. However, the user can program ATMEGA8 microcontroller with other firmware.
SNM-B module uses a CH340 chip as a USB to Serial converter.
Features:
- Compatible with the protocol of RMxN wireless relay module.
- USB interface: USB type B connector.
- Driver: CH340.
- Baud rate: 115200.
22.50 $Out of stock
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Serial USB-A to Wireless nRF Module (SNM-A)
SNM-A module is a smart serial USB (A-type connector) to wireless module based on the nRF24L01+ from Nordic Semiconductor and uses the controller ATMEGA8.
The nRF24L01+ module is designed to operate in the global 2.4GHz ISM frequency band and uses GFSK modulation to transmit data.
ATMEGA8 microcontroller comes pre-programmed to support RMxN relay modules protocol. However, the user can program ATMEGA8 microcontroller with other firmware.
SNM-A module uses a CH340 chip as a USB to Serial converter.
Features:
- Compatible with the protocol of RMxN wireless relay module.
- USB interface: USB type A connector.
- Driver: CH340.
- Baud rate: 115200.
22.50 $Out of stock
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4 Port USB 2.0 Hub
This USB hub has four USB 2.0 ports each with a max total transmission speed of up to 480 MBps. All four ports are powered through the USB-B cable.
This hub is great for giving your laptop or computer a few more plug-in options, no adapter is required.Features:
- Number of ports: 4.
- no adapter is required.
- PC interface: USB type B.
- USB device interface: USB type A.
- Output: 100mA MAX.
- Two (Ø 3.5mm) mounting holes for easy installation.
4.00 $In stock
4 Port USB 2.0 Hub
4.00 $ -
Arduino Uno Breakout Board
Arduino Uno Breakout Board.
6.75 $In stock
Arduino Uno Breakout Board
6.75 $ -
Real Time Clock Module (DS3231 & 4K Memory 24C32)
This RTC module is based on the clock chip DS1307 that provides seconds, minutes, hours, day, date, month, and year information.
Features :
- Operating voltage 5V.
- Supports the 24-hour or 12-hour format with an AM/PM indicator.
- Interface: I2C.
- On-board 4K I2C serial EEPROM.
- On-board CR2032 3V lithium battery.
- Two (Ø 3.5mm) mounting holes for easy installation.
- Dimension: 34 X 24 X 10mm.
7.00 $In stock
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Real Time Clock Module (DS1307 & 4K Memory 24C32)
This RTC module is based on the clock chip DS1307 that provides seconds, minutes, hours, day, date, month, and year information.
Features :
- Operating voltage 5V.
- Supports the 24-hour or 12-hour format with an AM/PM indicator.
- Interface: I2C.
- On-board 4K I2C serial EEPROM.
- On-board CR2032 3V lithium battery.
- Two (Ø 3.5mm) mounting holes for easy installation.
- Dimension: 36 X 24 X 10mm.
3.75 $In stock
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1-Channel Active High Relay Module (24V) RM124
1-Channel relay module (24V) up to 10A rated current directly interfaced to microcontroller or TTL logic.
2.00 $In stock
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6-Channel DC Power Distributor
6-Channel DC power distributor module.
Features :
- Operating voltage: 5~48 DCV.
- Maximum output current: 10A/Channel.
- Protection fuse for each channel.
- Green LED indicator for input voltage.
- Red LED indicator for each output voltage.
- 100nF filter capacitor for each output channel.
- Four (Ø 3.5mm) mounting holes for easy installation.
- DIN Rail mounting using PCB carrier or PCB bracket ( Optional ).
- Dimension: 119 X 73 X 19mm.
7.00 $In stock
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30A Current Sensor Module (ACS712)
30A Current Sensor Module (ACS712).
Features:
- Operating voltage: 5V.
- Green LED for power indication.
- Input interface 7.5mm screw clamp terminal.
- Power and output signal interface: 2.54mm male pin header.
- Maximum current: 30A.
- One (Ø 3.5mm) mounting hole for easy installation.
- Dimension: 34 X 15 X 14mm.
5.00 $In stock
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20A Current Sensor Module (ACS712)
20A Current Sensor Module (ACS712).
Features:
- Operating voltage: 5V.
- Green LED for power indication.
- Input interface 5.08mm screw clamp terminal.
- Power and output signal interface: 2.54mm male pin header.
- Maximum current: 20A.
- Dimension: 30 X 13 X 12mm.
4.50 $In stock
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5A Current Sensor Module (ACS712)
5A Current Sensor Module (ACS712).
Features:
- Operating voltage: 5V.
- Green LED for power indication.
- Input interface 5.08mm screw clamp terminal.
- Power and output signal interface: 2.54mm male pin header.
- Maximum current: 5A.
- Dimension: 30 X 13 X 12mm.
4.00 $In stock
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I²C Serial EEPROM Module 24CXX
I²C Serial EEPROM Module 24CXX.
Features:
- Operating voltage: 5V.
- Green LED for power indication.
- Interface: 2.54mm male pin header.
- One (Ø 3.5mm) mounting hole for easy installation.
- Breadboard-friendly module.
- Dimension: 22 X 10 X 8mm.
1.25 $ – 2.50 $In stock
I²C Serial EEPROM Module 24CXX
1.25 $ – 2.50 $ -
4-Channel USB/RS232 Hub Converter
4-Channel USB/RS232 Hub Converter.
Features:
- No of channels: 4.
- USB interface: type B.
- RS232 interface: DB9 male + pin header.
- Driver: CH340.
- Signals per channel: RX, TX, DTR, and DSR.
- USB speed: high speed.
- Maximum transfer rate: 1Mbps.
- Operating temperature: (-40….85˚C).
- Green LED for power indication.
- Two red LEDs for serial communication activity RX, Tx for each channel.
- Four (Ø 3.5mm) mounting holes for easy installation.
- Dimension: 185 x 45 x 15mm.
22.50 $In stock
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IC Package Converter (QFP32-0.8mm/DIP32-600mil)
IC Package Converter (QFP32-0.8mm/DIP32-600mil).
0.75 $In stock
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IC Package Converter (QFP64-0.8mm/DIP64-1000mil)
IC Package Converter (QFP64-0.8mm/DIP64-1000mil).
1.25 $In stock
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IC Package Converter (SOIC4/DIP4)
IC Package Converter (SOIC4/DIP4).
0.25 $In stock
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2-Channel Opto-isolated AC Input Detector Module (ACD2)
This module detects whether AC input exists.
Features :
- Input voltage range 110-250V.
- Output voltage range 3-24V.
- Input signals can be applied through screw terminals or pin headers for flexibility.
- Four (Ø 3.5mm) mounting holes for easy installation.
- LED indicator for AC input.
- Output and power pins are broken out into a pin header for easy interfacing.
- DIN Rail mounting using PCB carrier or PCB bracket ( Optional ).
- Dimensions: 50 X 47 X 17mm.
2.00 $In stock
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RS485/USB-A Serial Converter Module
The RS485/USB-A Serial Converter Module is an industrial-grade USB-to-RS485 interface designed to provide reliable serial communication between a host computer and RS485-compatible devices. Built around the CH340B USB-to-UART bridge and MAX487 RS485 transceiver, the module offers a compact and reliable solution for industrial automation, embedded systems, instrumentation, and other industrial communication applications.
Designed for dependable operation in demanding environments, the module incorporates industrial-grade protection circuitry and an optimized PCB layout to improve reliability and noise immunity. A USB Type-A connector enables convenient plug-and-play operation, while onboard Power, TX, and RX LEDs provide communication status indication. Field connections are made through a four-position screw terminal exposing 5 V, GND, RS485 A, and RS485 B signals.
The module is supplied in a semi-transparent protective enclosure that enhances mechanical durability while allowing easy visual inspection of the PCB and status indicators.
Features:
- CH340B USB-to-UART Bridge.
- MAX487 Half-Duplex RS485 Transceiver:
Compliant with TIA/EIA-485 Standard.
Maximum Data Rate: 250 kbps.
Multi-Drop Bus network topology.
Supports up to 128 nodes.
- USB Type-A Male Connector:
USB Powered (5V).
UART Baud Rate up to 2 Mbps (Limited to 250 Kbps by MAX487).
- On-board 120 Ω bus termination resistor.
- Supports Windows 7, 8, 10, and 11 (32-bit & 64-bit).
- Industrial Protection Circuitry.
Resettable PTC Fuse.
Ferrite Bead for EMI/ESD Suppression.
Reverse-Polarity Protection.
- Optimized PCB Grounding for Improved Noise Immunity.
- Isolated USB Shield Ground Connection.
- Onboard Status LEDs:
GREEN: Power Indicator.
YELLOW: TX and RX Activity Indicator.
- Four-Pin Screw Terminal (5V, 0V, A, B).
- Compact, Plug-and-Play Design.
- Dimensions: 56 X 26mm.
10.00 $In stock
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8-Channel Isolation Module
8-channel opto-isolated module suitable for voltage level converting.
Features :
- Two selectable Input control signal ranges (3-12V and 9-24V).
- Output signal range: 3-24V.
- LED indicator for each input.
- Dedicated 2-pin screw clamp terminal for each input and output.
- Output can drive high or low-triggered load.
- Four (Ø 3.5mm) mounting holes for easy installation.
- DIN Rail mounting using PCB carrier or PCB bracket ( Optional ).
- Dimensions: 129 X 50 X 17mm.
6.50 $Out of stock
8-Channel Isolation Module
6.50 $ -
IC Package Converter (SOIC8/DIP8)
IC Package Converter (SOIC8/DIP8).
0.25 $In stock
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IC Package Converter (TSSOP8/DIP8)
IC Package Converter (TSSOP8/DIP8).
0.25 $In stock
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IC Package Converter (SOIC20-150mil/DIP20)
IC Package Converter (SOIC20-150mil/DIP20).
0.50 $Out of stock
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IC Package Converter (SOIC18-150mil/DIP18)
IC Package Converter (SOIC18-150mil/DIP18).
0.50 $In stock
