4-Channel PCIe Gen 2x1 Expander for CM4 IO Board _MAKE_CABLE_PANEL You can access all I2C

You can access all I2C registers in the real-time clock and temperature sensor via the single I2C device emulated by the Witty Pi 4

Encoder Interface

Please ignore the "ISM330DLC" print on the PCB - Adafruit have confirmed that the chip is correct but the PCB silkscreen has the wrong part number on it

Circuit 4: Dimming (the Easy Way)

4-Channel PCIe Gen 2x1 Expander for CM4 IO Board _MAKE_CABLE_PANEL You can access all I2CThis adapter board from Waveshare allows you to extend the single PCIe socket on your Raspberry Pi Compute Module 4 IO board (or alternative compatible IO board) to four sockets, allowing additional devices to be used in your project. An ASMedia controller is utilised in the board design (a popular choice due to the excellent compatibility with the Raspberry Pi) which supports PCIe 2. 0 fill speed data transmission. There's also a header onboard for