the mini::pit features an Espressif ESP32-WROOM-32U microcontroller, thereby adding another full mcu to board stack. aside from bluetooth and wifi, this adds computational power, the ability to drive small touchscreens and a second CAN bus interface.
with the mini::pit, we aimed to create a versatile extension to the mini::base for local wireless applications. in terms of the wired interface, there are two footprints for THT loom connectors which wire the power supply and one CAN on one and some I/Os and the other CAN on the other, it has a connector for a small display and it has a connector for an external BLE / WiFi antenna.
size is not the most important aspect for a development-style board. nonetheless we aimed to keep it compact yet robust, again with the goal of making the board::project line viable for more than just desk environments. as a visual aid and to ease integration, we decided to use the credit card form factor as a reference, and the mini stack is exactly half a credit card in footprint at 54.0mm x 42.5mm.