Need help...name this board.

[Wheelin247]

A friend of mine gave me a PWM board but I don’t know what brand it is. Can anybody help me out? Here are a couple pics of the board.

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[dc99]

Its called the "nano pwm".

 

[Wheelin247]

Thanks my friend. I noticed no where to solder voltmeter to along with a fire switch. Know where I can find a wiring diagram?


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[dc99]

Sorry Im so late, this is the company that made it. https://squareup.com/store/modpcb/
Im guessing because I have never used there PWM but it looks like batt-neg, 510-neg, send voltage from batt pos to switch then out to V-in