Octopus Electronic Bricks, you can use them to build electronics projects just as easily as piling bricks. By using Octopus electronic bricks, you can connect Arduino/Freaduino compatible boards easily with various digital, analog and I2C/Uart...

This is a 5V, 10A 2-Channel Relay interface board. It can be used to control various appliances, and other equipments with large current. It can be controlled directly with 3.3V or 5V logic signals from a microcontroller (Arduino, 8051, AVR, PIC, DSP,...

This is a 5V 8-Channel Relay interface board able to control various appliances, and other equipment with large currents. It can be controlled directly by Micro-controller (Raspberry Pi, Arduino,etc.). Features 5V 8-Channel Relay interface board,...

5V Four Channel SSR Solid Relay Module 240V / 2A - High Level Trigger - For Arduino Specifications Max. LoadAC: 240V Input Voltage: 5V DC Trigger Current: 2mA Dimensions: 2.28 in x 2.2 in x 0.94 in (5.8 cm x 5.6 cm x 2.4 cm) Weight: 1.34 oz (38 g)

The DHT22 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly...