![](/media/cache/profiles/68a15b5278e4f7c4c056df9d5f1d3b1f.jpg.50x50_q85.jpg)
simple example program to control one mirror from serial data
Diff: main.cpp
- Revision:
- 0:4e12dea53fbe
- Child:
- 1:daf6b4939120
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Fri Sep 07 06:42:13 2012 +0000 @@ -0,0 +1,68 @@ +#include "mbed.h" +#include "hardwareIO.h" + +DigitalOut myled(LED1); + +void processSerial(); + +unsigned int Y; // position of the mirror (note: in fact it is an ANGLE) +bool newPositionReady=false; + +unsigned int counter=0; + +int main() { + + // SETUP: -------------------------------------------------------------------------------------------- + IO.init(); // note: serial speed can be changed by checking in the hardwareIO.cpp initialization + + // Set displaying laser powers: + IO.setRedPower(0); + IO.setGreenPower(0);//turn on the green (displaying) laser + + wait_ms(100); + + Y = CENTER_AD_MIRROR_Y; + IO.writeOutY(Y); + + // MAIN LOOP: -------------------------------------------------------------------------------------------- + while(1) { + processSerial(); + if (newPositionReady) { + IO.writeOutY(Y); + newPositionReady=false; + } + + Y=int(0.5*4095.0*(1.0+cos(1.0*counter/100000))); + IO.writeOutY(Y); + counter++; + + } +} + +// -------------------------------------------------------------------------------------------- +// String to store ALPHANUMERIC DATA (i.e., integers, floating point numbers, unsigned ints, etc represented as DEC) sent wirelessly: +char stringData[24]; // note: an integer is two bytes long, represented with a maximum of 5 digits, but we may send floats or unsigned int... +int indexStringData=0;//position of the byte in the string + +void processSerial() { + + while(pc.readable()>0){ + + char val =pc.getc(); + + // Save ASCII numeric characters (ASCII 0 - 9) on stringData: + if ((val >= '0') && (val <= '9')){ // this is 45 to 57 (included) + stringData[indexStringData] = val; + indexStringData++; + } + + // X value? + else if (val=='X') { + stringData[indexStringData] = 0 ; + Y=atoi(stringData); + indexStringData=0; + newPositionReady=true; + } + + } +} \ No newline at end of file