dtoverlay=spi6-2cs,cs0_pin=16,cs1_pin=26. For I2C and UART, Raspberry Pi forum threads provided a few examples. I2C example: # Enabling I2C3, with SDA on GPIO4 and SCL on GPIO5 dtoverlay=i2c3,pins_4_5 ...

The Raspberry Pi 5 and Pi 4, ... They're also both equipped with two micro-HDMI ports for dual monitor functionality, and come with GPIO pins for your sensor-based applications.

Instead of the 40 GPIO pins on the Raspberry Pi 4, the Compute Module 4 features 28 GPIO pins, with up to six UART, six I2C and five SPI connections. ...

The Raspberry Pi 4’s GPIO header also supports more connections, with UART, SPI, and I2C interfaces each supported on four additional pins, and with fixed support for clock stretching over I2C ...

– A few Dupont female single pins to connect to 5V and Ground GPIO pins. – You can use the 3.5V GPIO pin to lower the speed of the fan… works great. The Noctua fan is a critical component ...

The Raspberry Pi 4 is the best mini PC out there for making and experimenting gets more power and better capabilities, ... since it uses a nearly identical GPIO pin layout.