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
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.
The SG-90 is rated to run on 4.8 to 6V. It is essential to know and follow the manufacturer's ratings!
Gnd Batt and Gnd controller must be connected.
Thank you. It worked..
13 posts were merged into an existing topic: ESP 8266 wont initiate my servo sg90
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.
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