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Results tagged with adc
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user 86359
Analog Digital converter
0
votes
1
answer
1k
views
How to properly read ADC on an ATtiny85? [closed]
I use Vcc as reference value for the ADC.
The problem I have: no matter what I do I always read the same value on the ADC. … bit 2
(1 << MUX1) | // use ADC2 for input (PB4), MUX bit 1
(0 << MUX0); // use ADC2 for input (PB4), MUX bit 0
ADCSRA =
(1 << ADEN) | // Enable ADC …
- 191
1
vote
Accepted
How to properly read ADC on an ATtiny85?
>= 196 && adcValue <= 206)
{
// 27k ohm (2.6V -> adc 201)
}
else if (adcValue >= 181 && adcValue <= 191)
{
// 38k ohm (2.4V -> adc 186)
}
else if (adcValue >= 165 && adcValue <= 175)
{
// 50k ohm … (2.2V -> adc 170)
}
else if (adcValue >= 150 && adcValue <= 160)
{
// 65k ohm (2.0V -> adc 155)
}
Here is a picture of my breadboard. …
- 191
1
vote
1
answer
203
views
Microcontroller freezes when triggering the gate of an N-channel MOSFET
The microcontroller can distinguish them by reading the ADC value. … (PB4), MUX bit 2
(1 << MUX1) | // use ADC2 for input (PB4), MUX bit 1
(0 << MUX0); // use ADC2 for input (PB4), MUX bit 0
ADCSRA =
(1 << ADEN) | // Enable ADC …
- 191
1
vote
Microcontroller freezes when triggering the gate of an N-channel MOSFET
2.6V -> adc 201)
playTrack(3);
}
else if (adcValue >= 181 && adcValue <= 191)
{
// 38k ohm (2.4V -> adc 186)
playTrack(4);
}
else if (adcValue >= 165 && adcValue <= 175)
{
/ … / 50k ohm (2.2V -> adc 170)
playTrack(5);
}
else if (adcValue >= 150 && adcValue <= 160)
{
// 65k ohm (2.0V -> adc 155)
playTrack(6);
}
// ending up here every loop where no button …
- 191