Raspberry Pi 500/400 Dual HAT Expansion [Discontinued] Compatible With_Raspberry Pi 3A Plus Head on over to Red

Head on over to Red Bear's GitHub for even more specifications

wire up +5V

The microcontroller also uses less power than Linux Boards (although its of course a lot less powerful as well) so will run longer on battery power

The Oled screen supports SPI (Default setting ) and I2C interface

Raspberry Pi 500/400 Dual HAT Expansion [Discontinued] Compatible With_Raspberry Pi 3A Plus Head on over to RedThis expansion board has been designed specifically for the Raspberry Pi 500 and Raspberry Pi 400 and allows you to easily and conveniently operate two Raspberry Pi HATs from the GPIO connection. You can also use this board with the Raspberry Pi 5 and Raspberry Pi 4! With the included GPIO ribbon cable, the Dual HAT Expansion sits conveniently to the side of the keyboard unit, making it easier to use your Pi 500 400 GPIO pins (and with two sets of