amit ate
It collects environmental data and send it to the ESP module also able to receive the configuration message.
Revision 0:085d20f0ca45, committed 2017-02-07
- Comitter:
- thinkfire
- Date:
- Tue Feb 07 20:16:43 2017 +0000
- Commit message:
- Debugging Process going smoothly...
Changed in this revision
diff -r 000000000000 -r 085d20f0ca45 BMP280.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BMP280.lib Tue Feb 07 20:16:43 2017 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/12104404/code/BMP280/#c72b726c7dc9
diff -r 000000000000 -r 085d20f0ca45 DHT.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DHT.lib Tue Feb 07 20:16:43 2017 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/thinkfire/code/DHT/#d9116db5603f
diff -r 000000000000 -r 085d20f0ca45 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Feb 07 20:16:43 2017 +0000
@@ -0,0 +1,157 @@
+#include "mbed.h"
+#include "BMP280.h"
+#include "DHT.h"
+#include "stdio.h"
+
+Timer txTimer, mqTimer;
+Serial device(p9, p10);
+BMP280 bmpObj(p28, p27);
+DHT dhtObj(p21,DHT11);
+AnalogIn mqObj(p20);
+
+char sensorConf[4];
+char msg[60];
+
+bool tmpFlag = true; //temperature sensor flag
+bool presFlag = true; //pressure sensor flag
+bool co2Flag = true; //co2 sensor flag
+bool humFlag = true; //humidity sensor flag
+
+bool rxFlag = false; //recieve packet flag
+
+int bmpTmp,bmpPres,dhtHum,dhtTmp; //stores bmp280 temperature and sensor value
+int avgTmp; //average of bmpTmp and dhtTmp
+uint16_t mqCo2;
+
+//enable or desable sensors
+void setSensors(void);
+
+//get temperature and pressure values from bmp280
+void bmpGetValue(void);
+
+//get temperature and humidity value from dht11
+void dhtGetValue(void);
+
+//get airquality value from mq135
+void mqGetValue(void);
+
+
+void rx_interrupt()
+{
+ int i = 0;
+
+ while(device.readable()){
+ sensorConf[i++]= device.getc();
+ i++;
+ }
+
+ sensorConf[i] = '\0';
+ rxFlag = true;
+
+ return;
+}
+
+int main()
+{
+ //device.attach(&rx_interrupt,device.RxIrq);
+
+ bmpObj.initialize(); //initialize bmp280 sensor
+
+ txTimer.start(); //start transmit timer
+ mqTimer.start(); //start airquality timer
+
+ while (true) {
+ bmpGetValue(); //get value from bmp280 sensor
+ dhtGetValue(); //get value from dht11 sensor
+
+ if (mqTimer.read_ms()>2000) {
+ mqGetValue();
+ mqTimer.reset();
+ }
+
+ if(rxFlag) {
+ setSensors();
+ rxFlag = false;
+ }
+
+ if(bmpTmp!=0 && dhtTmp!=0) {
+
+ avgTmp = (bmpTmp + dhtTmp)/2;
+ }
+
+ if(txTimer.read_ms()>8000) {
+ if(device.writeable()) {
+ sprintf(msg,"TMP %d PRS d% CO2 d% HUM %d ",avgTmp,bmpPres,mqCo2,dhtHum);
+ device.puts(msg);
+ }
+ txTimer.reset();
+ }
+
+ wait(0.5);
+ }
+}
+
+void bmpGetValue(void)
+{
+ if(tmpFlag) {
+ bmpTmp = bmpObj.getTemperature();
+ }
+ if(presFlag) {
+ bmpPres = bmpObj.getPressure();
+ }
+}
+
+void dhtGetValue(void)
+{
+ int s = dhtObj.readData();
+ wait(0.5);
+ if (s == ERROR_NONE) {
+ if(humFlag) {
+ dhtHum = dhtObj.ReadHumidity();
+ }
+ if(tmpFlag) {
+ dhtTmp = dhtObj.ReadTemperature(CELCIUS);
+ }
+ }
+}
+
+void mqGetValue()
+{
+ if(co2Flag) {
+ mqCo2 = mqObj.read_u16();
+ }
+}
+
+void setSensors(void)
+{
+ if(sensorConf[0]=='T') {
+ if(sensorConf[1]=='0') {
+ tmpFlag = false;
+ avgTmp = 0;
+ } else {
+ tmpFlag = true;
+ }
+ } else if(sensorConf[0]=='P') {
+ if(sensorConf[1]=='0') {
+ presFlag = false;
+ bmpPres = 0;
+ } else {
+ presFlag = true;
+ }
+ } else if(sensorConf[0]=='C') {
+ if(sensorConf[1]=='0') {
+ co2Flag = false;
+ mqCo2 = 0;
+ } else {
+ co2Flag = true;
+ }
+ } else if(sensorConf[0]=='H') {
+ if(sensorConf[1]=='0') {
+ humFlag = false;
+ dhtHum = 0;
+ } else {
+ humFlag = true;
+ }
+ }
+}
+
diff -r 000000000000 -r 085d20f0ca45 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Feb 07 20:16:43 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/176b8275d35d \ No newline at end of file