It is very easy to control servos with the help of the Servo Library which is part of Arduino. For my tests I was using an ESP8266.to evaluate the following small Servos:
- 1.5g 180 Degree Nylon Gear Digital Linear Micro Servo 3.7V-5V For Micro RC Airplane – left
- 1.7g Low Voltage Micro Digital Servo Mini JST 1.25Pin Connector for RC Mode
- 3.7g Micro Digital Servo GH-S37D For RC Airplane Helicopter
I wanted to investigate the expected power consumption. For this I used the Sweep Example from Arduino.
Power Consumption at 5 V
- 1.5g Servo: N/A
- 1.7g Servo: 0.05 A (max 0.1 A)
- 3.7g Servo: 0.05 A (max 0.06 A)
It seems that the 1.5g Servos were damaged and did hardly move: they were getting very hot and consumed up to 0.9A
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