Gert Lauritsen
This demo will read the Voltage and Current from the "AttoPilot Voltage and Current Sense Board," convert the raw ADC data to Volts and Amps and display them as floating point numbers on the Serial Enabled LCD. (If you would like to do without the Serial LCD, I have included commented code for reading the results through the Serial Terminal.)
Diff: main.cpp
- Revision:
- 0:40a765d1b46b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Feb 17 22:09:53 2016 +0000
@@ -0,0 +1,30 @@
+#include "mbed.h"
+
+RawSerial pc(USBTX, USBRX);
+AnalogIn Ain1(p19);// --- AttoPilot "V"
+AnalogIn Ain2(p20);// --- AttoPilot "I"
+
+int VRaw; //This will store our raw ADC data
+int IRaw;
+float VFinal; //This will store the converted data
+float IFinal;
+
+int main()
+{
+ while(1) {
+ VRaw = Ain1.read_u16();
+ IRaw = Ain2.read_u16();
+
+ //Conversion
+ VFinal = VRaw/49.44; //45 Amp board
+ //VFinal = VRaw/12.99; //90 Amp board
+ //VFinal = VRaw/12.99; //180 Amp board
+
+ IFinal = IRaw/14.9; //45 Amp board
+ //IFinal = IRaw/7.4; //90 Amp board
+ //IFinal = IRaw/3.7; //180 Amp board
+ pc.printf("%.1 Volts\r\n",VFinal);
+ pc.printf("%.1f Amps\r\n\r\n\r\n",IFinal);
+ wait(0.2);
+ }
+}