This USB to RS485 converter is based on CH340 USB to serial IC. It provides a virtual serial port over a USB 2.0 port. Serial signals are provided in RS485 level to screw clamp terminal. Once you have installed the drivers, the module will appear as a normal serial COM port on your computer, making it compatible with most terminal programs and development environments.

  Features: 

• Provides virtual serial port over USB2.0 port.
• MAX487 transceiver.
• Supports Win 7, 8, 10, and 11 32/64-bit.
• B-type socket full-speed 2.0 USB interface.
• USB-powered (5V).
• Half-duplex serial mode.
• RS485 data rate up to 250 Kbps.
• Serial baud rate up to 2 Mbps.
• Up to 128 nodes on bus.
• TVS protection ±30 KV ESD.
• PTC (JZ) for overcurrent fault protection.
• 120 Ohm terminal resistor included.
• Red LED indicator for Rx and Tx signals.
• Green LED for power status.
• One (Ø 3.5mm) mounting hole for easy installation.
• Dimensions: 49 X 21 X 15 mm.

8-Channel solid state relay module (5V) 240VAC/2A directly interfaced to microcontroller or TTL logic.

  Features : 

• Input signal: 5V (active high).
• Maximum output current: 2A.
• Maximum output voltage: 240VAC.
• 2 Ampere overcurrent protection fuse.
• LED indicator.

ESP-01 programmer adapter, USB (CH340) to ESP8266 WiFi development board module.

The DHT11 is a basic low-cost digital humidity and temperature sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and provides a digital signal on the data pin. It’s fairly simple to use but requires careful timing to grab data, you can only get new data from it once every 2 seconds.

This module is an implementation of the popular low-cost DHT11 sensor. It comes with proper headers to make it even easier to connect to any exposed pins of your development board.

  Features :

• Operating voltage: 3V ~ 5V.
• Humidity measurement ranges from 20%~80% with ±5% accuracy.
• Temperature measurement range 0°C ~ 50°C with ±2°C accuracy.
• Interface: One-wire communication protocol.

RJ45 8pin socket vertical type on PCB to block terminals and pin header facilitates solderless connection to RJ45 connector and is also suitable for panel mounting and test applications.

   Features :

• RJ45 pins are routed to pin headers and screw clamp terminals.
• Both terminals are labeled according to the RJ45 pin number to which they are routed.
• Pin header pitch distance is 2.54mm.
• Screw terminal pitch distance is 3.5mm.
• Two (Ø 3.5mm) mounting holes for easy installation.
• Dimensions: 29 X 29 X 15mm.

ESP8266 (ESP32) Wi-Fi module breakout board.

This module allows for safe and easy communication between devices operating at different logic levels. Typically 3.3V and 5V.

   Features :

• 4-channel bi-directional logic converter suitable for bi-directional buses such as I²C, as well as uni-directional such as SPI and TTL serial communication.
• Voltage signal range: 1.8-5V.
• 2.54mm male header.
• Dimensions: 16 X 14 X 4mm ( with no pin header ).

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.

USB type B micro socket on PCB to header suitable for breadboard test applications.

8-Channel relay module (24V) up to 10A rated current directly interfaced to a microcontroller or TTL logic.

4-Channel relay module (24V) up to 10A rated current directly interfaced to a microcontroller or TTL logic.

Complete buffered CNC parallel breakout board. Supports up to 4 axes, five inputs, spindle and coolant output relays, PWM output, and a wide power supply range of 11V ~ 24V.

This module allows for safe and easy communication between devices operating at different logic levels. Typically 3.3V and 5V.

  Features :

• 8-channel bi-directional logic converter suitable for bi-directional buses such as I²C, as well as uni-directional such as SPI and TTL serial communication.
• Voltage signal range: 1.8-5V.
• 2.54mm male header.
• Dimensions: 27 X 14 X 4mm ( with no pin header ).

Low-cost USB to serial UART/TTL converter module based on CH340 chip.

  Features :

• USB type A male connector.
• Supports 3.3V/5V.
• Provides RX, TX, DTR, and RTS signals.
• Suitable for breadboard applications.
• Dimension: 52 X 18 X 12mm.

Opto-isolated 4-channel / 3 Ampere positive output transistor module for PLC industrial control.

   Features :

• 4-channel positive output FET type transistor.
• Operating voltage range: 12-36V (for 48V output pls contact us).
• Maximum operating current: 3 ampere.
• All channels are opto-isolated for safety.
• Green LED indicator for power input.
• Yellow LED indicator for each Input.
• Red LED indicator for each output.
• Provides 3A fuse for overcurrent protection.
• Four (Ø 3.5mm) mounting holes for easy installation.
• DIN Rail mounting using PCB carrier or PCB bracket ( Optional ).
• Dimensions: 90 X 78 X 22mm.

This module is an adjustable voltage regulator based on LM317.

  Features :

• Input voltage range: 4.2 ~ 40V.
• Output voltage (adjustable): 1.2 ~ 37V.
• Maximum output current: 1A.
• Thermal shutdown protection.
• Reverse polarity protection.
• Four (Ø 3.5mm) mounting holes for easy installation.
• Dimension: 43 X 21 X 23mm.

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.

2-Channel 12V relay module up to 10A rated current active high/low trigger directly interfaced to microcontroller or TTL logic with opto-isolation.

  Features :

• LED indicator for each output relay.
• Both normally open and normally close are available.
• Contact current up to 10A (Resistive load).
• Isolated/non-isolated operation mode.
• Active high/low trigger operation.
• Input signals can be applied through screw terminals or pin headers for flexibility.
• Separated screw terminal power input for relay contact (isolated mode).
• Reverse polarity protection.
• Four (Ø 3.5mm) mounting holes for easy installation.
• Dimension: 66 X 47 X 20mm.

1-Channel relay module (24V) up to 10A rated current directly interfaced to microcontroller or TTL logic.