Controlling small servo moto with a Wemos D1 Mini (or similar)

[Jim Ford]

I want to experiment with controlling a SG90 servo with a D1 Mini.

The docs show a much larger servo with an associated power supply and relays, The SG90 is a much smaller servo and maybe the added complexity of the example is not really necessary. 

 Can I simply attach the servo power supply wires to the +5V and GND of the D1 Min and the servo control to a GPIO terminal set as a PWM output?

Jim

[Philip Knowles]

The SG90 draws 600mA and runs at 5V. The D1 runs at 3.3V so you may need to use a relay or opto-isolator 

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From: sonof...@googlegroups.com <sonof...@googlegroups.com> on behalf of Jim Ford <jimf...@gmail.com>
Sent: 25 March 2025 18:28
To: TasmotaUsers <sonof...@googlegroups.com>
Subject: Controlling small servo moto with a Wemos D1 Mini (or similar)

 

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