Example Arduino Sketch for MCP4261 Potentiometer Shield?
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Just received my pot shield and was wondering if there is an example Arduino sketch available to get me up and running quickly?
Thanks!
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We have an Arduino library for the MCP4261 Potentiometer Shield available in the iorodeo_arduino_libs repository on bitbucket https://bitbucket.org/iorodeo/iorodeo_arduino_libs/src See the mcp4261 sub-directory. Examples can be found in mcp4261/Examples.
Here is a short example showing how to set the wiper positions of the potentiometers using the mcp4261 library.
#include <SPI.h> #include "mcp4261.h" // Simple example demonstrating how to use the MCP4261 library with // the MCP4261 Arduino Uno shield const int POT_0_CS = 5; const int POT_1_CS = 6; const int LOOP_DELAY = 200; MCP4261 pot0 = MCP4261(POT_0_CS); MCP4261 pot1 = MCP4261(POT_1_CS); void setup() { // Setup SPI communications SPI.setDataMode(SPI_MODE0); SPI.setBitOrder(MSBFIRST); SPI.setClockDivider(SPI_CLOCK_DIV8); SPI.begin(); // Initialize potentiometers pot0.initialize(); pot1.initialize(); } void loop() { static int cnt=0; pot0.setWiper0(cnt); pot0.setWiper1(256-cnt); pot1.setWiper0(cnt); pot1.setWiper1(256-cnt); cnt += 1; if (cnt > 256) { cnt = 0; } delay(LOOP_DELAY); }
The KiCad Design files for the Arduino Uno shield can be found here https://bitbucket.org/iorodeo/mcp4261_shield/src
An image of the schematic is given below
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Awesome, thanks Will! got me up and running super quickly!