While the Raspberry Pi 4 and Raspberry Pi 3 Model B+ look almost identical (they measure 85 mm x 56 mm, and the board layout is similar), their input/output ports are anything but.

Famous in part for its small size, the Raspberry Pi line of inexpensive computers is famously no bigger than a deck of cards, and the Raspberry Pi 4 Model B measures just 3.4 x 2.2 x 0.4 inches.

The Raspberry Pi 4 Model B is the most capable and versatile of any Pi that’s come before and the Desktop Kit makes its entire setup as easy as possible.

Main image remixed from Raspberry Pi 4 GPIO pinout diagram by [Les Pounder]. ... MLX90614 and grove GSR sensor through ADS1115 in separate i2c buses in raspberry pi 4.

Raspberry Pi 4 won't work with some power cables due to its USB-C design flaw; Raspberry Pi 4 Model B is out: Faster CPU, GPU, dual-screen 4K, up to 4GB for $55; Raspberry Pi users: You got Pi 4 ...