Janna Smith
photocell to led matrix touch display
Dependencies: mbed Adafruit_LEDBackpack USBDevice
Revision 0:c88ac8c87673, committed 2018-12-05
- Comitter:
- chessemaster5000
- Date:
- Wed Dec 05 22:18:09 2018 +0000
- Commit message:
- Never Eat Pears
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Adafruit_LEDBackpack.lib Wed Dec 05 22:18:09 2018 +0000 @@ -0,0 +1,1 @@ +http://os.mbed.com/users/luizhespanha/code/Adafruit_LEDBackpack/#f066d5347c60
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBDevice.lib Wed Dec 05 22:18:09 2018 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/USBDevice/#53949e6131f6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Dec 05 22:18:09 2018 +0000
@@ -0,0 +1,77 @@
+#include "mbed.h"
+#include "Adafruit_LEDBackpack.h"
+#include "Adafruit_GFX.h"
+
+I2C i2c(p9, p10); //declare led matrix 12c ports
+
+Adafruit_8x8matrix matrix = Adafruit_8x8matrix(&i2c); //set up matrix
+//AnalogIn sensor0(p16);
+//AnalogIn sensor1(p17);
+//AnalogIn sensor2(p18); // declare photocells and their pins
+//AnalogIn sensor3(p19);
+//AnalogIn sensor4(p20);
+//DigitalOut pin8 (p8); //power
+
+AnalogIn cell0(p15);
+AnalogIn cell1(p16);
+AnalogIn cell2(p17);
+AnalogIn cell3(p18);
+AnalogIn cell4(p19);
+AnalogIn cell5(p20);
+DigitalOut pin8(p8);
+
+float threshold = 0.2; //Whatever makes a good sensitivity level
+
+int leds[8][8];
+int row;
+int col;
+
+int main() {
+ matrix.begin(0x70);
+ pin8=1; //power on
+
+while(1) {
+ for (row = 7; row >=1; row--)
+ for (col = 0; col <=7; col++)
+ leds[row][col] = leds[row+1][col]; // These nested loops move everything down one row, except the top row
+
+ leds[0][0] = (int)(cell0 + threshold); // These assignments fill the top row with the cell values
+ leds[0][1] = (int)(cell1 + threshold); // Each value should be 0 or 1
+ leds[0][2] = (int)(cell2 + threshold);
+ leds[0][3] = (int)(cell3 + threshold);
+ leds[0][4] = (int)(cell4 + threshold);
+ leds[0][5] = (int)(cell5 + threshold);
+
+ printf("Value0 = %f\r\n", cell0.read());
+ printf("Value1 = %f\r\n", cell1.read());
+ printf("Value2 = %f\r\n", cell2.read());
+ printf("Value3 = %f\r\n", cell3.read());
+ printf("Value4 = %f\r\n", cell4.read());
+ wait(1.0);
+
+ matrix.clear();
+
+ if(cell0 <= 0.2){
+ matrix.drawPixel (0, 0, LED_ON);}
+ else matrix.drawPixel (0, 0, LED_OFF);
+
+ if(cell1 <= 0.2){
+ matrix.drawPixel (1, 0, LED_ON);}
+ else matrix.drawPixel (1, 0, LED_OFF);
+
+ if(cell2 <= 0.2){
+ matrix.drawPixel (2, 0, LED_ON);}
+ else matrix.drawPixel (2, 0, LED_OFF);
+
+ if(cell3 <= 0.2){
+ matrix.drawPixel (3, 0, LED_ON);}
+ else matrix.drawPixel (3, 0, LED_OFF);
+
+ if(cell4 <= 0.2){
+ matrix.drawPixel (4, 0, LED_ON);}
+ else matrix.drawPixel (4, 0, LED_OFF);
+
+ matrix.writeDisplay(); // write the changes we just made to the display
+ wait(0.2);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Dec 05 22:18:09 2018 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/e7ca05fa8600 \ No newline at end of file