I designed this muscle amplifier that runs on +/-5V. I'm powering this with a standard 3.7V lipo stepped up to 10V and then using a potential divider to split the power into 2 rails (+5V and -5V). However, I then want to pass this signal into an Arduino powered by the whole 10V and am wondering how I would go about doing this as the muscle signal is rectified to be completely positive but is technically oscillating between 10V and 5V in reference to the ground being used on the Arduino. I don't know if this is hard to imagine so I've drawn out the basic diagram:
The signal would be going into one of the analog pins on the Arduino to be read by a script but at the moment it would fry the Arduino as it's over 5V, how would I go about translating the signal down by 5V so that it can be safely read by an Arduino while still powering the whole thing off a single battery? I hope this makes sense
Thanks in advance
The signal would be going into one of the analog pins on the Arduino to be read by a script but at the moment it would fry the Arduino as it's over 5V, how would I go about translating the signal down by 5V so that it can be safely read by an Arduino while still powering the whole thing off a single battery? I hope this makes sense
Thanks in advance