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TN-R-5991 1 Channel 12V MFG Relay module
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TN-R-5991 1 Channel 12V MFG Relay module

TN-R-5991 1-channel 12V relay module for controlling AC/DC devices with Arduino, Raspberry Pi, and microcontrollers.

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1-channel 5V relay module
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1-channel 5V relay module

1-channel 5V relay module for controlling AC/DC devices with Arduino, Raspberry Pi, and microcontrollers.

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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

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2 Channel 5V Optocoupler Relay module
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2 Channel 5V Optocoupler Relay module

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

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Sonoff IoT WiFi Development Board
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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.
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Sonoff Environmental Monitoring System
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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.
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Ai-Thinker LoRa RA-02 SX1278 Wireless Transmission Module
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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

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1-channel 12V relay module
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1-channel 12V relay module

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

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

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

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PCF8574T I2C I/O Extension Board
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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.

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AT24C256 I2C EEPROM memory module
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AT24C256 I2C EEPROM memory module

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

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