Priunsh Nagru
Source code for the breathalyzer box
Dependencies: PinDetect PixelArray mbed nRF24L01P
Revision 0:008ae770ecc8, committed 2016-12-09
- Comitter:
- Priunsh_N
- Date:
- Fri Dec 09 21:22:11 2016 +0000
- Commit message:
- Source code for the standalone breathalyzer box
Changed in this revision
diff -r 000000000000 -r 008ae770ecc8 PinDetect.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PinDetect.lib Fri Dec 09 21:22:11 2016 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/AjK/code/PinDetect/#cb3afc45028b
diff -r 000000000000 -r 008ae770ecc8 PixelArray.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PixelArray.lib Fri Dec 09 21:22:11 2016 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/JacobBramley/code/PixelArray/#47802e75974e
diff -r 000000000000 -r 008ae770ecc8 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Dec 09 21:22:11 2016 +0000
@@ -0,0 +1,164 @@
+#include "mbed.h"
+#include "nRF24L01P.h"
+#include "PinDetect.h"
+#include "neopixel.h"
+
+#define TRANSFER_SIZE 1 // Was 4
+#define SEND_TRUE '1'
+#define SEND_FALSE '0'
+#define THRESHOLD 0.5
+#define DATA_PIN p5
+#define TEST_LENGTH 15
+#define WAIT_TIME 5
+
+//Activate button
+PinDetect pb(p19);
+
+//Analog Breath
+AnalogIn breath(p20);
+
+//Timer
+Timer t;
+
+//Debounce Timer
+Timer debounce;
+
+//Transceiver
+nRF24L01P nRF(p5, p6, p7, p8, p9, p10); // mosi, miso, sck, csn, ce, irq
+
+//PC debug
+Serial pc(USBTX, USBRX); // tx, rx
+
+//Transmit Debugging
+DigitalOut myled1(LED1); //Drunk
+DigitalOut myled2(LED2); //Sober
+
+//Variables
+char txData[TRANSFER_SIZE];
+int txDataCnt = 0;
+
+bool updateLights(int numPixels, neopixel::Pixel * pixels, neopixel::PixelArray array) {
+ bool drunk = 0;
+ int num_Pixels = 0;
+ float value = breath.read();
+ //pc.printf("Value: %f\n\r",breath.read());
+ //wait(1);
+ if (value > THRESHOLD) {
+ drunk = 1;
+ } else {
+ drunk = 0;
+ }
+ num_Pixels = (int)ceil(value * 6);
+ array.update(pixels, numPixels);
+ if (!drunk) {
+ for (int a = 1; a <= num_Pixels; a++) {
+ pixels[a].green = 50; // green
+ array.update(pixels, numPixels);
+ //wait(.2);
+ }
+ for (int a = num_Pixels + 1; a < numPixels; a++) {
+ pixels[a].red = 0; //green
+ pixels[a].green = 0; //red
+ array.update(pixels, numPixels);
+ }
+ } else {
+ for (int a = 1; a <= 3; a++) {
+ pixels[a].green = 50;
+ array.update(pixels, numPixels);
+ //wait(.2);
+ }
+ for (int a = 4; a <= num_Pixels; a++) {
+ pixels[a].red = 50;
+ array.update(pixels, numPixels);
+ //wait(.2);
+ }
+ for (int a = num_Pixels + 1; a < numPixels; a++) {
+ pixels[a].red = 0;
+ pixels[a].green = 0;
+ array.update(pixels, numPixels);
+ }
+ }
+ wait(1);
+ return drunk;
+}
+
+bool startTest(int sec) {
+ //Pixel Init
+ DigitalIn(p11, PullDown);
+ neopixel::PixelArray array(p11);
+ uint16_t numPixels = 7;
+ neopixel::Pixel pixels[numPixels];
+ pixels[0].red = 0;
+ pixels[0].green = 0;
+ pixels[0].blue = 50;
+ for(int i = 1; i < numPixels; i++) {
+ pixels[i].red = 0;
+ pixels[i].green = 0;
+ pixels[i].blue = 0;
+ }
+ //Test
+ bool ifEverDrunk = false;
+ t.start();
+ while(t.read() < sec) {
+ if (updateLights(numPixels, pixels, array)) {
+ ifEverDrunk = true;
+ pc.printf("Updating Lights\r\n");
+ }
+ }
+ t.stop();
+ t.reset();
+ //Turn off LEDs
+ for(int i = 0; i < numPixels; i++) {
+ pixels[i].red = 0;
+ pixels[i].green = 0;
+ pixels[i].blue = 0;
+ }
+ array.update(pixels, numPixels);
+ //return
+ return ifEverDrunk;
+}
+
+void sendData(bool drunk){
+ if (drunk) {
+ txData[txDataCnt++] = SEND_TRUE;
+ myled1 = !myled1;
+ } else {
+ txData[txDataCnt++] = SEND_FALSE;
+ myled2 = !myled2;
+ }
+ if ( txDataCnt >= sizeof( txData ) ) {
+ pc.printf("%c", txData[0]);
+ nRF.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
+ pc.printf(" Sending...\r\n");
+ txDataCnt = 0;
+ }
+}
+
+void pb_callback(void) {
+ pc.printf("Callback\r\n");
+ sendData(startTest(TEST_LENGTH));
+ wait(WAIT_TIME);
+}
+
+int main() {
+
+ //RF and Push Button
+ nRF.powerUp();
+ nRF.setTransferSize(TRANSFER_SIZE);
+ nRF.setTransmitMode();
+ nRF.enable();
+ pb.mode(PullUp);
+ wait(.001);
+ pb.attach_deasserted(&pb_callback);
+ pb.setSampleFrequency();
+
+ pc.printf( "nRF24L01+ Frequency : %d MHz\r\n", nRF.getRfFrequency() );
+ pc.printf( "nRF24L01+ Output power : %d dBm\r\n", nRF.getRfOutputPower() );
+ pc.printf( "nRF24L01+ Data Rate : %d kbps\r\n", nRF.getAirDataRate() );
+ pc.printf( "nRF24L01+ TX Address : 0x%010llX\r\n", nRF.getTxAddress() );
+ pc.printf( "nRF24L01+ RX Address : 0x%010llX\r\n", nRF.getRxAddress() );
+
+ while(1) {
+ pc.printf("Loop\r\n"); //Debug loop
+ }
+}
diff -r 000000000000 -r 008ae770ecc8 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Dec 09 21:22:11 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/d75b3fe1f5cb \ No newline at end of file
diff -r 000000000000 -r 008ae770ecc8 nRF24L01P.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nRF24L01P.lib Fri Dec 09 21:22:11 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Owen/code/nRF24L01P/#8ae48233b4e4