philip march first

1 files changed, 36 insertions, 0 deletions

diff --git a/digital-controller/firmware/firmware.ino b/digital-controller/firmware/firmware.ino
new file mode 100644
index 0000000..86e4bb0
--- /dev/null
+++ b/digital-controller/firmware/firmware.ino
@@ -0,0 +1,36 @@
+#include <Wire.h>
+
+#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()
+{
+  for( int a=10; a<=255; a++ ){
+  //generate buffer containing data to send via I2C
+  uint8_t buf[1];
+  buf[0] = 255-a;  // adjusting this byte changes fan speed. Can be adjusted from 0 to 256.
+  buf[1] = a;  // 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(50);
+  }
+}