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Raspberry Pi adds more memory to the Compute Module 4S
New memory variants were this week launched for ... Hence the CM4S - "loosely based on the Raspberry Pi 4 Model B," according to the company. A CM4SLite variant also turned up - seemingly earlier ...
Hackaday3y
Did You Know That The Raspberry Pi 4 Has More SPI, I2C, UART Ports?
The datasheet for these peripherals is pleasant to go through, with all the register maps nicely laid out ... Main image remixed from Raspberry Pi 4 GPIO pinout diagram by [Les Pounder].