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144 lines
3.5 KiB
144 lines
3.5 KiB
/*
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DigitalReadSerial
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Reads a digital input on pin 2, prints the result to the serial monitor
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This example code is in the public domain.
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*/
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//NOTE: we are using 1.1V VRef, so keep ADC input low.
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//current
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int ADC_VAL0 = A1;
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//
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int ADC_VAL1 = A4;
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//smoothing
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const int numReadings = 100;
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int readings[numReadings]; // the readings from the analog input
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int readIndex = 0; // the index of the current reading
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int total = 0; // the running total
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int average = 0; // the average
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int readings2[numReadings]; // the readings from the analog input
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int readIndex2 = 0; // the index of the current reading
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double total2 = 0; // the running total
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int average2 = 0; // the average
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int start = 0;
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int ADCVAL0_State = 0;
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int ADCVAL1_State = 0;
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int writeresult = 0;
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// the setup routine runs once when you press reset:
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void setup() {
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for (int thisReading = 0; thisReading < numReadings; thisReading++) {
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readings[thisReading] = 0;
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readings2[thisReading] = 0;
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}
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// initialize serial communication at 9600 bits per second:
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Serial.begin(9600);
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// make the ADC_VAL0's pin an input:
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//pinMode(ADC_VAL0, INPUT);
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analogReference(INTERNAL);
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//to find where arduino does this, grep -r analogReference in Arduino install folder
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//cryptic shit though
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//so instead, just fprint the register before and after the change. much more intuitive.
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//do it manually...
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//this doesn't work
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//ADMUX = (0 << REFS1) | (0 << REFS0) ;
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//this doesn't work
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//ADMUX = _BV(REFS1) | _BV(REFS0) | _BV(MUX0);
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//this doesn't work
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//ADMUX = ADMUX | 0b11001110;
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//this doesn't work
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//ADMUX = (1 << REFS1) | (1 << REFS0) ;
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//this also doesn't work
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//ADMUX |= (1 << REFS0);
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//ADMUX |= (1 << REFS1);
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//search engines have been fucked over with endless forum debates, hopeless. a blog post guide would suffice.
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//even this doesn't work. why... it should work. must be wiring code breaking things. give up for now.
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//ADMUX = ADMUX | 0b11000000;
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}
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// the loop routine runs over and over again forever:
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void loop() {
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// subtract the last reading:
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total = total - readings[readIndex];
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total2 = total2 - readings2[readIndex];
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// read from the sensor:
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readings[readIndex] = analogRead(ADC_VAL0);
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readings2[readIndex] = analogRead(ADC_VAL1);
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// add the reading to the total:
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total = total + readings[readIndex];
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total2 = total2 + readings2[readIndex];
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// advance to the next position in the array:
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readIndex = readIndex + 1;
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// if we're at the end of the array...
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if (readIndex >= numReadings) {
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// ...wrap around to the beginning:
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readIndex = 0;
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start = 1;
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writeresult = 1;
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}
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// calculate the average:
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average = total / numReadings;
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average2 = total2 / numReadings;
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// send it to the computer as ASCII digits
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if(start){
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ADCVAL0_State = average;
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ADCVAL1_State = average2;
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}
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// read the input pin:
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//int ADCVAL0_State = analogRead(ADC_VAL0);
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if (writeresult){
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//int ADCVAL1_State = analogRead(ADC_VAL1);
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// print out the state of the button:
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Serial.print(" ADCVAL0 Current in mA, ");
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Serial.print(ADCVAL0_State);
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Serial.print(",");
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Serial.print(" ADCVAL1 Battery Voltage divby 10, ");
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Serial.println(ADCVAL1_State);
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delay(5000); // delay in between reads for stability
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writeresult = 0;
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}
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//Trying to debug why I cant change a bit in a register. fucking wiring. fuck search engines.
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//int dog = ADMUX;
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//Serial.println(ADMUX,BIN);
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}
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