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Author Topic: EMG/ECG Shield - Arduino Uno  (Read 708 times)

Patawak

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EMG/ECG Shield - Arduino Uno
« on: June 09, 2018, 03:26:01 AM »
Hello, I've just received my EMG/ECG Shield and using it with an Arduino Uno. When I read the analog values they are nearly 10 times lower than the ones I've seen on numerous videos. I get values around 50s as opposed to 500s with a simple analog read. Although the form of the signals are correct. Can anyone tell me what might be the reason?

svan

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Re: EMG/ECG Shield - Arduino Uno
« Reply #1 on: June 29, 2018, 09:29:57 PM »
> I get values around 50s as opposed to 500s with a simple analog read.

1) Has your Arduino code manipulated the value by bit shifting, eg, sensorValue = sensorValue >> 2;

2) Did you use a resistor in your setup?

Would be helpful to see your setup and code.

Drayfus

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Re: EMG/ECG Shield - Arduino Uno
« Reply #2 on: October 25, 2018, 12:49:24 PM »
What would a resistor accomplish in a setup like that btw?