From c8e4120b3cc117b9b35cea99d519de23ecb9bad0 Mon Sep 17 00:00:00 2001 From: Philip Lampkin Date: Wed, 30 Dec 2020 00:10:01 -0600 Subject: Wrote PR controller sketches for slave and master --- .../Master_Photoreactor_Controller.ino | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 Digital Photoreactor Controller Firmware/Master_Photoreactor_Controller/Master_Photoreactor_Controller.ino (limited to 'Digital Photoreactor Controller Firmware/Master_Photoreactor_Controller') diff --git a/Digital Photoreactor Controller Firmware/Master_Photoreactor_Controller/Master_Photoreactor_Controller.ino b/Digital Photoreactor Controller Firmware/Master_Photoreactor_Controller/Master_Photoreactor_Controller.ino new file mode 100644 index 0000000..8c2ffa4 --- /dev/null +++ b/Digital Photoreactor Controller Firmware/Master_Photoreactor_Controller/Master_Photoreactor_Controller.ino @@ -0,0 +1,40 @@ +//////////////////////////////////////////////////////////////////////////////////// +// Digital Photoreactor Controller Slave Program Controlled by I2C // +// Run this slave program on the Arduino Uno or Rasberry Pi. // +//////////////////////////////////////////////////////////////////////////////////// + +#include + +#define I2C_SLAVE_ADDR 0x26 // I2C slave address (38, 0x26) + +void setup() +{ + // init the Wire object + Wire.begin(); + + // wait for slave to finish any init sequence + delay(2000); +} + +void loop() +{ + + //generate buffer containing data to send via I2C + uint8_t buf[1]; + buf[0] = 25; // adjusting this byte changes fan speed. Can be adjusted from 0 to 256. + buf[1] = 1; // adjusting this byte changes LED intensity. Can be adjusted from 0 to 256. + + // send buffer + Wire.beginTransmission(I2C_SLAVE_ADDR); + Wire.write( buf, 2); + Wire.endTransmission(); + + // delay 20 milliseconds to accomodate slave onReceive() + delay(20); + + /////////////////////// WHY DO I NEED THIS PART?////////////////////////// + Wire.requestFrom(I2C_SLAVE_ADDR, 1); + + // delay 1 second so user can watch results + delay(1000); +} -- cgit v1.2.3