Hence, zmk default use 2 HID, HID_0 for keyboard, HID_1 for mouse. CONFIG_USB_HID_DEVICE_COUNT=3 # Module Config CONFIG_ZMK_HID_IO=y # Enable hid joystick CONFIG_ZMK_HID_IO_JOYSTICK=y # Enable hid ...

A small and simple STM32G431 based dev board, that doubles as analog-to-USB acquisition tool. Next to 6 single ended or 2 differential ADC inputs (upt to 16bit), there are 3 PGA connected ADC inputs ...

The USB interface is being increasingly used as ... a high side current sense amplifier before being fed to the 10 bit analog port of the ATmega. A MCP1525 precision voltage reference provides ...

As seen in the picture above, you’ll sacrifice 2 analog pins, but if you happen to need IO and have an extra Arduino lying around, this could really help. [Rod] also notes that this method could ...