The controller shield is a GPIO breakout to screw terminal board for the raspberry pi that allows for easy end unit development. There are IDC headers to connect supported expansion modules and get rid of those jumper wires. On board DHT temperature sensor support as well as other various pull down resistors and status LEDs.

This board was designed to connect using a 40 pin IDC ribbon cable to the pi to allow stacking for both on top or below a raspberry pi using the provided mounting holes. (Typically mounting the pi on top is preferred to allow more airflow)

Board Specs

• Screw Terminal Breakouts for GPIOS 17, 27, 22, 25, 12, 5, 23, 2, 3, 24, 7, 4
• 10k Pull Down resistors & status LEDs for float level sensors on GPIOS 17, 27, 22, 25, 12, 5
• 5.1k Resistor for Onewire bus on GPIO pin 4
• Screw Terminals for 5Vin
• Screw Terminal for 3.3Vin
• Onboard Socket for Temperature Sensor (DHT11 / DHT22) Support
• Works with bare DHT or module that has resistor.
• Additional Header for I2C and Serial
• Power Selection (5V or 3.3V) for I2C
• On Board Status LEDs
• A User LED on GPIO pin 23
• 3x IC Connector for Relay Module
• IDC Connector for SPI Radio/SD Modules/Expansion