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Sonoff Basic R3 Smart WiFi Switch 

Technical Specifications

  • Model: Sonoff Basic R3

  • Input / Output: AC 100–240V, 50/60Hz

  • Max Load: 10A

  • WiFi: 2.4GHz IEEE 802.11 b/g/n

  • Control Method: App / Voice / Manual

  • Material: Flame-retardant ABS

  • App Support: eWeLink

2 Channel 5V Optocoupler Relay module

2-channel 5V optocoupler relay module for Arduino, Raspberry Pi, and microcontroller control of AC/DC devices.

Sonoff IoT WiFi Development Board

Sonoff IoT WiFi Development Board – A compact, WiFi-enabled board ideal for IoT and smart home projects. Supports wireless control, easy programming, and seamless integration with sensors and automation systems.

Sonoff Environmental Monitoring System

Sonoff Environmental Monitoring enables real-time temperature and humidity tracking with smart alerts and remote access via the eWeLink app—ideal for smart homes, offices, and industrial environments.

Ai-Thinker LoRa RA-02 SX1278 Wireless Transmission Module

Technical Highlights:

  • Chipset: Semtech SX1278

  • Frequency: 433 MHz

  • Modulation: LoRa

  • Interface: UART / SPI compatible

  • Operating Voltage: 3.3V

  • Compact and lightweight PCB design

1-channel 12V relay module

1-channel 12V relay module for controlling AC/DC devices with Arduino, Raspberry Pi, and microcontrollers.

Ai Thinker SX1278 LoRa RA-01 Wireless Transceiver Module with Baseboard

Technical Specifications

  • Chipset: Semtech SX1278

  • Frequency: 433 MHz

  • Modulation: LoRa / FSK / GFSK / OOK

  • Sensitivity: Up to −138 dBm (LoRa)

  • Transmission Power: Configurable (max up to +20 dBm)

  • Interface: SPI

  • Operating Voltage: 3.3V

  • Dimensions: Compact form factor with baseboard breakout support

Techtonics 1-channel 5V 10A relay control board module

Techtonics 1-channel 5V 10A relay module for Arduino, Raspberry Pi, and microcontroller control of AC/DC devices.

PCF8574T I2C I/O Extension Board

PCF8574T I2C I/O extension board for expanding 8 digital I/O pins on Arduino, ESP32, and Raspberry Pi projects.

AT24C256 I2C EEPROM memory module

AT24C256 I2C EEPROM memory module with 256 Kbit storage for Arduino, ESP32, Raspberry Pi, and embedded projects.

4×4 matrix membrane keypad

4x4 matrix membrane keypad with 16 keys for Arduino, Raspberry Pi, and microcontroller input projects.

1×5 tactile keypad switch module

1x5 tactile keypad switch module with five clicky buttons for Arduino, Raspberry Pi, and microcontroller projects.