The Multi-Serial I/O adapter from CognIoT brings the UART, I2C and SPI ports to convenient 0.1” headers. Raspberry Pi add-ons that require any of the serial ports can be easily connected via the Multi-Serial I/O adapter.
All of the headers have 3.3V and GND as well as the signals of the port. The I2C port has pull-ups on SCL and SDA to prevent erronous operation. These are an optional fit – already present on Raspberry-Pi.
The Raspberry Pi 26-pin header and the pin header for the serial ports are supplied ready for the user to solder to the adapter board.
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