I would just like to ask if this microcontroller can power or can manage 2 servos, 2 motors, and 2 hc-sr04 ultrasonic distance sensor combined? Also, does this board come with a bluetooth module?
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Thanks for the answer @StarCat but how would I do the "logic level translation"?– Thomas Raymond SantosJul 29, 2021 at 7:08
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Easiest would be to use the little 4-channel bidirectional level converters. Sometimes a simple voltage divider made out of two resistors would be enough (5V output to 3.3V input) and some 5V peripherals are 3.3V tolerant.– StarCatJul 29, 2021 at 7:22
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thank you so much @StarCat– Thomas Raymond SantosJul 29, 2021 at 7:46
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1 Answer
The ESP32 has more than enough free GPIOs to manage those peripherals. Also, the ESP32 does indeed come with a bluetooth module.
Your question about powering these peripherals very much depends on their power requirements. I would not count on being able to run motors or servos from the internal power supply of a NodeMCU board, so you would need an external supply.
Also, note that the ESP32 is a 3.3V device and might require logic level translation if you’re using 5V peripherals.
