Example using Sipeed Longan Nano board (GD32VF103CBT6 from the GD32VF103 series) as an SPI slave device for the raspberry pi zero 2W. This is more of an experimentation, the raspberry pi does not have ...

We’ve seen a ton of projects that interface hardware with the Raspberry Pi. But they usually depend on bit-banging. That means they toggle the pins in software to match a specific protocol. The thing ...