ESP-01 adapter module for serial communication to microcontroller and Arduino board.
ESP-01 not included.

DB25 male socket on PCB to block terminals and pin header facilitates solderless connection to standard serial connector DB25 and is also suitable for breadboard test applications.

  Features :

• DB25 pins are routed to pin headers and screw clamp terminals.
• Both terminals are labeled according to the DB25 pin number to which they are routed.
• Pin header pitch distance 2.54mm.
• Screw terminal pitch distance 3.5mm.
• Four (Ø 3.5mm) mounting holes for easy installation.
• Dimensions: 93 X 33 X 15mm.

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

  Features :

• USB (Header) to serial TTL (header).
• Supports 3.3V/5V.
• Provides RX, TX, DTR, and RTS signals.
• Suitable for breadboard applications.
• Dimension: 23 X 20 X 12mm.

1-Channel wireless relay module ( ESP-01 Wi-Fi ).

  Features :

• Wireless: Wi-Fi (2X4 2.54mm female header for ESP-01S Module).
• Operating Voltage: DC5V.
• Output Rating: One relay output (Normally open and normally closed) 10A MAX (resistive load) Port pin IO0.
• Red LED for Relay status.
• Green LED for power indication.
• RST switch for reset operation.
• One (Ø 3.5mm) mounting hole for easy installation.
• Dimensions: 35 X 32 X 17mm.

Bluetooth adapter module is a hardware tool suitable for configuring Bluetooth modules via PC using a HyperTerminal or any other configuration software.

2-Channel relay module (12V) up to 10A rated current directly interfaced to microcontroller or TTL logic.

DB9 female socket vertical type on PCB to block terminals and pin header facilitates solderless connection to standard serial connector DB9 and is also suitable for panel mounting and test applications.

  Features :

• DB9 pins are routed to pin headers and screw clamp terminals.
• Both terminals are labeled according to the DB9 pin number to which they are routed.
• Pin header pitch distance 2.54mm.
• Screw terminal pitch distance 3.5mm.
• Four (Ø 3.5mm) mounting holes for easy installation.
• Dimensions: 50 X 30 X 25mm.

1-Channel relay module (5V/12V/24V) up to 10A rated current directly interfaced to microcontroller or TTL logic.

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.

The photo-reflector consists of a GaAs infrared light-emitting diode and a silicon planar phototransistor. When an object is placed right in front of the sensor, the reflective infrared light emitted from the emitter will be picked up by the phototransistor and then output logical HIGH or logical LOW according to the distance between the reflection surface and the sensor.

  Features :

• Using a wide voltage LM393 comparator.
• The working voltage of 3.3V-5V.
• Maximum output sink current 10mA.
• Operating range 0~5mm.
• Output is active low i.e an interruption produces a low output (LED is activated).
• Two (Ø 3.5mm) mounting holes for easy installation.
• It is compatible with Arduino board.
• Dimension: 38 X 17 X 17mm.

AC/DC power filter is a bidirectional passive Low pass filter useful in filtering the output voltages of power supplies or transformers (not line input) such as filtering output 24VAC of a transformer. For AC Line filtration use our AC Line Filter.

  Features :

• Maximum operating voltage: AC250V / DC400V.
• Maximum Current: 3A.
• Cut-off frequency: 5KHz.
• Operating temperature: -40 to 85°C.
• Four (Ø 3.5mm) mounting holes for easy installation.
• Dimension: 47 X 22 X 17mm.

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 ).

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.

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.

1-Channel relay module (12V) up to 10A rated current directly interfaced to microcontroller or TTL logic.

RJ45 side by side coupler with pin header.

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

  Features :

• 6-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: 21 X 14 X 4mm ( with no pin header ).

A photo interrupter sensor consists of a light-emitting element (IR LED) and a light-receiving element (phototransistor) aligned facing each other. It works by detecting light interruption when a target object comes between both elements, acting as an optical switch. This changes the output of the sensor.

  Features :

• USB a wide voltage comparator LM393.
• Operating voltage: 3.3 ~ 5V.
• Active low output i.e an interruption produces a low output (LED is activated).
• Maximum output sink current: 10mA.
• 5mm slot width.
• Two (Ø 3.5mm) mounting holes for easy installation.
• Dimension: 26 X 21 X 18mm.

RJ45 side by side coupler.

RC absorption/snubber circuit module. Suitable for relay contact protection.

IC Package Converter (QFP64-0.8mm/DIP64-1000mil).

5V/1A DC-DC buck converter (7-40Vin). Suitable to replace 7805 for high-efficiency requirements.

9V battery socket with 5V regulator to pin header suitable for bread board applications.