How to run an SG90 servo using 2 Li-Po 3.7v Batteries

Projects General Guidance
1

I was trying to run a SG90 servo using 2 Li-Po 3.7v Batteries connected serially. But it won't work.
When I try to run it using an ESP8266 through vin pin, it works!

why can't it work on 7.14v (3.7v*2).

Note: The Power and GND is only on battery and the Data wire is connected to ESP8266

2

You need connect GND of the servo and ESP8266 to manage the Data line work.

Your always should to maintain a common GND between all devices and boards of the project.

3

The SG-90 is rated to run on 4.8 to 6V. It is essential to know and follow the manufacturer's ratings!

4

Gnd Batt and Gnd controller must be connected.

6

Thank you. It worked..:rocket:

13

Use a 4xAA (6V) battery pack or 5V 1Ampere phone charger instead, and avoid burning out the servo. Don't forget to connect the grounds.

servo_pwr
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