Adafruit MCP3008, 8-Channel 10-Bit ADC With SPI Interface, 856
Adafruit MCP3008, 8-Channel 10-Bit ADC With SPI Interface, 856
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$8.00 USD
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Need to add analog inputs? This chip will add 8 channels of 10-bit analog input to your microcontroller or microcomputer project. It's super easy to use and uses SPI so only 4 pins are required. We chose this chip as a great accompaniment to the Raspberry Pi computer because it's fun to have analog inputs but the Pi does not have an ADC.
We have a tutorial and code example for wiring this chip to a Raspberry Pi.