I'm trying to understand the power system of the Alvik, as I'd like to create a similar 2-wheeled bot powered with the same 18650 battery and Arduino Nano ESP32.
Images below are from the Alvik datasheet here.
When powered by battery, the Arduino Nano ESP32 is powered directly through its 3.3V pin, correct? I see no connections to any other power source.
Is there a difference between the '3V3' and '3V3_EXT' power rails depicted in the block diagram? Where is the '3V3_EXT' rail powered from?
Strange way to ask a question.
The Nano ESP32 datasheet says the Nano ESP32 can use various voltages, but the Alvik datasheet looks like 3v3 from the buck appears to be the only voltage present on the main board header for the NanoESP32, while 5v from the boost looks to be for the motors and other peripherals. Just a guess.
Search this Nano ESP32 datasheet for the "VIN" section for more information on the NanoESP32 (not the Alvik)
I have looked through the NanoESP32 datasheet and understand it can be powered through the VIN.
Looking at the Alvik's block diagram image, there appears to be no connections to the Nano's VIN, so I'm curious on which pin the Nano is receiving power.
I'm assuming it is receiving power on its 3.3V pin, but am not sure, so I'm seeking clarity on that.
Read post #2.
You don't like my answer. Good.
In post #2 you state you are just guessing. So it seems we both need some clarity on how it works. Which is what I'm seeking.
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