Expanding Plate Digital Input/Output DIDO HAT PiFace2 Digital Adapter Board for Raspberry Pi 4 / 3B+

IDO module includes components like relays,switches, gigital and analog I/O that will allow for connection to sensors , motors, lights, etc. and be controlled by the Raspberry Pi board. The digital DIDO module interface board fits the original Raspberry Pi models A and B. DIDO module has been redesigned to fit the Raspberry Pi models A and B. Features 1. 2 Change Over Relays 2. 4 Tactile Switches 3. 8 Digital Inputs and touch sensitive inputs 4. 8 Open-Collector Outputs 5. 8 LED Indicators 6. Graphical Emulator 7. Easy to program in Python 3 and 2, Scratch and C 8. Graphical emulator