- Tue Jun 05, 2018 3:18 am
#76289
code is not relevant, schematic of the motor shield would be the only way to tell for sure - but why should we do the googling?
- Tue Jun 05, 2018 7:41 am
#76293
The motors should be powered from their own power source. (if you planned on using usb for power) And the requirements of the motors (current) needs to be taken into account. You did not provide any information on them.
https://wiki.wemos.cc/_media/products:d ... _motor.pdf
https://wiki.wemos.cc/_media/products:d ... _motor.pdf
- Tue Jun 05, 2018 11:45 am
#76297
So I decided to solder all pins and I will use it as a intended - as a shield.
So I know that motors should have their own power, but could I get away with connectin Mini's 3V+GND to shield's VM + GND considering fact that my geared motors are 3V, 3rpm and they won't be moving at the same time? I will be powering it with USB so I would like to avoid additional battery to save space.
Thank you.
So I know that motors should have their own power, but could I get away with connectin Mini's 3V+GND to shield's VM + GND considering fact that my geared motors are 3V, 3rpm and they won't be moving at the same time? I will be powering it with USB so I would like to avoid additional battery to save space.
Thank you.
- Tue Jun 05, 2018 12:31 pm
#76298
Without knowing what the startup current for the motor is, it is impossible to tell you if you will have problems or not. The regulator has enough current for supplying peak currents to the ESP8266. There is not a lot of extra capacity.
If you run into problems you could take the 5 volts, pass it through a couple of silicon diodes to drop the voltage, and feed that into the VM input. This might be your preferred method from the start.
If you run into problems you could take the 5 volts, pass it through a couple of silicon diodes to drop the voltage, and feed that into the VM input. This might be your preferred method from the start.
