how to power a muscle sensor ?

Hello :slight_smile: ,
I want to buy a muscle sensor witch is : https://www.ebay.fr/i/202299952770?chn=ps&dispItem=1
And it needs to work a positive and negative reference voltage : Vs- , Grd (0V) and Vs-

We can do that with 2 9v baterie like that in the picture but i want to do this just with one batery but i don’t know how.
If someone have an idea to get vs-,vs+,grd from one batery, please answer me.
Thank you :slight_smile:
adrien
And sorry for my english, i’am frensh.

What is important is to tell us about the SIGNAL that is sent to the Arduino. Is it + and - voltage or is it a square wave that is + and -? Do you have a link to an English data sheet?

Paul

Hey Paul,
The signal that is sent to the aruino is a positive voltage (connect to the analog of the arduino),
i have the documentation of the sensor :

thank you
Adrien

Ok, looks pretty easy to use with an Arduino.

For a negative voltage generator, https://www.allaboutcircuits.com/projects/build-your-own-negative-voltage-generator/Look at this web site for you negative voltage generator.

Paul

Ok,
i have reproduce a picture and can you say me if this circuit will work or not.

but with this circuit i have:
VS+ = 9v
Grd = 0v
VS- = -7.95v

Adrien

TheSnowyx:
Ok,
i have reproduce a picture and can you say me if this circuit will work or not.

but with this circuit i have:
VS+ = 9v
Grd = 0v
VS- = -7.95v

Adrien

Hard to say. All depends on how YOU put it together. Try it and see what you get!

Paul

OK :slight_smile: , thank you,
i will try but not now because i don't have the muscle sensor yet !

adrien