#include <SPI.h>
// set pin 53 as the slave select for the digital pot:
const int slaveSelectPin = 53; //WAS 10 on Arduino uno.
const int shutdownPin = 7; // was 7 on uno.
const int wiper0writeAddr = B00000000;
const int wiper1writeAddr = B00010000;
const int tconwriteAddr = B01000000;
const int tcon_0off_1on = B11110000;
const int tcon_0on_1off = B00001111;
const int tcon_0off_1off = B00000000;
const int tcon_0on_1on = B11111111;
const int analogInPin_c = A5; // center Vc=Vss/2 from the PAD, use for set ini V. here no use, Vc directly goes to pad.
const int analogInPin_x = A1; // Analog input pin that the potentiometer is attached to
const int analogInPin_y = A2; // Analog input pin that the potentiometer is attached to
const int analogOutPin_x = wiper0writeAddr; // write MCP POT
const int analogOutPin_y = wiper1writeAddr; // write MCP POT
int sensorValue_c = 0; // value read from the PAD, Vc=Vss/2
int sensorValue_x = 0; // value read from the PAD, Vc=Vss/2
int sensorValue_y = 0; // value read from the PAD, Vc=Vss/2
//?int outputValue_c = 0; // value output to the PWM (analog out)
int outputValue_x = 0; // mid variable stored the value from 'sensorValue_c' and MAP that for use
int outputValue_y = 0; // mid variable stored the value from 'sensorValue_c' and MAP that for use
int Vcr = 0; // value read from the PAD, Vc=Vss/2
int Vc = 0; // value read from the PAD, Vc=Vss/2
const int LEDpin1 = 47;
const int LEDpin2 = 46;
int count = 0;
void setup() {
Serial.begin(9600);
// set the slaveSelectPin as an output:
pinMode (slaveSelectPin, OUTPUT);
// set the shutdownPin as an output:
pinMode (shutdownPin, OUTPUT);
// start with all the pots shutdown
digitalWrite(shutdownPin, LOW);
// initialize SPI:
SPI.begin();
Serial.println("Setup complete");
//??
Serial.println("Starting loop");
digitalWrite(shutdownPin, HIGH); //Turn off shutdown
}
void loop() {
AnalogInOut(); //
ArduinoDAC(); //
}
void AnalogInOut() {
// take from some where used for testing joystick control LED,
//need change to get date fron RC and write to MCP pots
// read the analog in value:
Vcr = analogRead(analogInPin_c);
delay(1000);
Serial.print("Vcr= ");
Serial.println(Vcr);
Vc = map(Vcr, 0, 1023, 165, 225);
Serial.print("Vc = ");
Serial.println(Vc);
delay(10);
Serial.print("count_ini= ");
Serial.println(count);
/////if (count = 0)
while (count = 0)
{
if (Vc > 188)
{
digitalWrite(LEDpin1, HIGH);
Serial.print("Vc TOO HIGH: ");
Serial.println(Vc);
exit(0);
delay(10);
}
else if (Vc < 165) {
digitalWrite(LEDpin2, HIGH);
Serial.print("Vc TOO LOW = : ");
Serial.println(Vc);
exit(0);
delay(10);
}
else {
Serial.print("analogInPin_c_T00: ");
Serial.println(analogInPin_c);
/// digitalPotWrite(wiper0writeAddr, Vc);
///digitalPotWrite(wiper1writeAddr, Vc);
digitalPotWrite(wiper0writeAddr, 100);
digitalPotWrite(wiper1writeAddr, 220);
count = 1;
Serial.print("count_new= ");
Serial.println(count);
}
delay(15000);
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////
sensorValue_x = analogRead(analogInPin_x);
sensorValue_y = analogRead(analogInPin_y);
// map it to the range of the analog out:
outputValue_x = map(sensorValue_x, 0, 1023, 70, 248);
outputValue_y = map(sensorValue_y, 0, 1023, 70, 248); // change the analog received to the value suite for PAD joystick
// print the results to the Serial Monitor:
Serial.println("sensor_x =_T10 ");
Serial.println(sensorValue_x);
Serial.println("sensor_y = ");
Serial.println(sensorValue_y);
Serial.println("\t output = ");
Serial.println(outputValue_x);
Serial.println(outputValue_y);
// wait 2 milliseconds before the next loop for the analog-to-digital
// converter to settle after the last reading:
delay(2);
}
void ArduinoDAC() {
Serial.println("Starting loop");
digitalWrite(shutdownPin, HIGH); //Turn off shutdown
digitalPotWrite(wiper0writeAddr, outputValue_x); // Set wiper 0 to 200
delay(5);
digitalPotWrite(wiper1writeAddr, outputValue_y); // Set wiper 1 to 200
delay(5);
}
// This function takes care of sending SPI data to the pot.
void digitalPotWrite(int address, int value) {
/// Serial.print("wiper0 position_t30: ");////
/// Serial.println();////
// take the SS pin low to select the chip:
digitalWrite(slaveSelectPin, LOW);
// send in the address and value via SPI:
SPI.transfer(address);
SPI.transfer(value);
delay(30);
// take the SS pin high to de-select the chip:
}
int digitalPotRead(int address) {
// take the SS pin low to select the chip:
digitalWrite(slaveSelectPin, LOW);
// send in the address via SPI:
SPI.transfer(address);
// send zero to read data from the address
delay(30);
}
Yes
GrOnThOs:
Yes
Thank you GrOnThOs,
The code is too mess to be attached.
shortly as:
while ()
{
if (){
}
else if () {
}
else () {
}
delay(5000);
}
The [delay(5000);] doesn't work, I mean the sketch didn't execute this line.
Hi,
Welcome to the forum.
Please read the first post in any forum entitled how to use this forum.
http://forum.arduino.cc/index.php/topic,148850.0.html . Then look down to item #7 about how to post your code.
It will be formatted in a scrolling window that makes it easier to read.
Post the full code please?
What do you want your code to do?
Why are you using while()?
Thanks.. Tom.. 
else {
}
not
else () {
}
.
.
. while (count = 0)
{
if (Vc > 188)
{
digitalWrite(LEDpin1, HIGH);
Serial.print("Vc TOO HIGH: ");
Serial.println(Vc);
exit(0);
delay(10);
}
.
.
.
-
"count = 0" should be "count == 0".
-
Why do you use exit(0) here?
GrOnThOs:
else {
}
notelse () {
}
Thank you GrOnThOs, actually there wasn't a '()' in my original code as attached. Sorry the mistake by short.
still the [delay 5000 ] didn't executed no matter put where:
else {
delay(5000);
}
// or
delay(5000);
}
Blackfin:
.
.
. while (count = 0)
{
if (Vc > 188)
{
digitalWrite(LEDpin1, HIGH);
Serial.print("Vc TOO HIGH: ");
Serial.println(Vc);
exit(0);
delay(10);
}
.
.
.
1) "count = 0" should be "count == 0". 2) Why do you use exit(0) here?
Thank you Blackfin.
-
the purpose to use "count == 0" is let the code just do ONE time this if section, no need loop here, there should be some other solution.
I put "count == 0", there is error came: expected initializer before '==' token. -
exit(0) because if the date value is not match, I need to do some repair.
if(count == 0)?
Hi,
What is your code supposed to do?
What is your code doing?
What is the application?
What model Arduino are you using?
Thanks.. Tom..
Try "while (count >= 0)" and change "count = 1;" to "count ++;"
Thank you for reply, I just post the code, questions are:
- the 'while - if' section doesn't run, I put a 'delay 5000', never wait;
- the 'count' work as a mark, let the 'while - if' section running just once, is this OK?
- If I put the 'while - if' section inside the void setup, any solution to 'the digitalPotWrite didn't declared in this scope' ?