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How to use multiple SPIs on Raspberry Pi (e.g. 3.5 inch Touchscreen, MCP 3008)

A display or a digital/analog converter (DAC) uses the SPI (serial peripheral interface) to communicate with the Raspberry Pi. The MCP 3008 is a DAC which reads analog values and converts them into digital ones. The Raspberry Pi itself can’t… Continue Reading →

How to read out analog signals (sensors, potentiometers etc) with Raspberry, SPI and MCP3008

The Raspberry Pi has a serial peripheral interface (SPI) which can be used to communicate with microcontrollers, display drivers or in our case digital/analog converters (DACs). By default the Raspberry Pi can’t read analog signals, it only can read digital… Continue Reading →

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