Hi friends,
i am building a small arduino robot with two 360 servos because i dont want to use a motor driver, i built a power supply with a 18650 and a buck converter, the supply should output 5v with 1.5 amp.
when i connect supply to arduino its working, when i connect the servos + to the same power supply and servo minus to another ground on arduino it starts working but then halts the arduino turns off.
over usb its working
wtf
need help i am going crazy
Welcome to the forum
Are you sure that you mean a buck converter and not a boost converter ?
yes sorry its a boost converter DC-DC 1.5A Step-Up Boost Converter - Bastelgarage Elektronik Online Shop
What is output voltage did you setup on the converter?
How does it connected to the board and servo?
Please show your connection diagram
You need to connect the Arduino GND to the Servo GND
If you use 5v power source - you can't connect it to VIN pin. Please consult to board manual - minimal input voltage for VIN is 6.5-7v
Use "5v" pin instead.
i did try that but same result
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