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Overview | Analog Inputs for Raspberry Pi Using the ...
https://learn.adafruit.com/reading-a-analog-in-and-controlling-audio-volume-with-the-raspberry-pi?view=all#:~:text=The%20Raspberry%20Pi%20computer%20does%20not%20have%20a,that%20often%20have%206%20or%20more%20analog%20inputs%21
Overview | Analog Inputs for Raspberry Pi Using the ...
https://learn.adafruit.com/reading-a-analog-in-and-controlling-audio-volume-with-the-raspberry-pi
Here is a short list of some analog inputs that could be used with this setup: potentiometer. photocell. force sensitive resistor (FSR) temperature sensor. 2-axis joystick. This guide uses a potentiometer to control the volume of an audio tone, but the code can be used as the basis for any kind of analog-input project.
Overview | Analog Inputs for Raspberry Pi Using the ...
https://learn.adafruit.com/reading-a-analog-in-and-controlling-audio-volume-with-the-raspberry-pi?view=all
The Raspberry Pi computer does not have a way to read analog inputs. It's a digital-only computer. Compare this to the Arduino, AVR or PIC microcontrollers that often have 6 or more analog inputs! Analog inputs are handy because many sensors are analog outputs, so we need a way to make the Pi analog-friendly.
Analog Inputs for Raspberry Pi Using the MCP3008
https://cdn-learn.adafruit.com/downloads/pdf/reading-a-analog-in-and-controlling-audio-volume-with-the-raspberry-pi.pdf
Teaching the Raspberry Pi how to read analog inputs is easier than you think! The Pi does not include a hardware analog-to-digital converter (https://adafru.it/eYp), but an external ADC (such as the MCP3008 (http://adafru.it/856)) can be used, along with some SPI code in Python to read external analog devices. Here is a short list of some analog inputs that could be …
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