BME3915(NBDJZ) / Mbed 2 deprecated LDRVoltageCircuitDigest

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Dependencies:   mbed

main.cpp@0:8b55e947c1eb, 2019-04-10 (annotated)

Committer:
pbarrows
Date:
Wed Apr 10 16:00:27 2019 +0000
Revision:
0:8b55e947c1eb
hi

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pbarrows 0:8b55e947c1eb 1 #include "mbed.h"
pbarrows 0:8b55e947c1eb 2
pbarrows 0:8b55e947c1eb 3 AnalogIn sensor(A1);
pbarrows 0:8b55e947c1eb 4
pbarrows 0:8b55e947c1eb 5 int main() {
pbarrows 0:8b55e947c1eb 6 float val;
pbarrows 0:8b55e947c1eb 7 val=sensor.read(); //read the ADC value from pin PA1
pbarrows 0:8b55e947c1eb 8 //VOLTAGE / STEP = REFERENCE VOLTAGE / 4096 = (3.6V/4096= 0.879mV) per unit.
pbarrows 0:8b55e947c1eb 9 float voltage=(val/4096)*3.6; //converts ADC value to voltage
pbarrows 0:8b55e947c1eb 10 while(1) {
pbarrows 0:8b55e947c1eb 11 printf("%.4f\n", voltage); // 0.0 to 1.0
pbarrows 0:8b55e947c1eb 12 wait_ms(100);}
pbarrows 0:8b55e947c1eb 13 }