Paul Trebilcox-Ruiz PaulTR@Gmail.com
Library for communicating with the MCP3008 Analog to Digital Converter.
Based on an Arduino library by: Uros Petrevski (https://github.com/nodesign/MCP3008)
Originally ported from Python code originaly written by Adafruit learning system for rPI: http://learn.adafruit.com/send-raspberry-pi-data-to-cosm/python-script
Initializing with a Raspberry Pi 3B and a TMP36 connected to ADC CH 0.
Pinout for sample like so:
ADC channel 0 -|* |- VIN
ADC channel 1 -| |- VIN
ADC channel 2 -| |- Analog GND (For this sample app, I used this ground)
ADC channel 3 -| |- Clock
ADC channel 4 -| |- MISO pin on board (sometimes listed as D-OUT on chip diagram)
ADC channel 5 -| |- MOSI pin on board (sometimes listed as DIN on chip diagram)
ADC channel 6 -| |- Chip select (CS)
ADC channel 7 -| |- Digital GND (For this sample app, I left this GND disconnected)
While testing I wired BCM12 to CS, BCM21 to Clock, BCM16 to MOSI (D-OUT) and BCM20 to MISO (D-IN)
Can change pin numbers in your own projects to be the proper board pins.