Vairetz
Posts: 41
Joined: Wed Apr 27, 2016 4:54 pm

Can L298N power up a Raspberry Pi?

Tue Apr 09, 2019 4:51 pm

Hi everyone I have a L298N board to control a bipolar stepper motor with my Pi, the question as in the title is: can this board power up a Pi with 5v output terminal? I have 12volt 2A power supply for the board but I can't power up the Pi, it detect undervoltage and reboot itself after rainbow screen. Can I solve the problem or I need different power supply for the Pi?
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My web site is https://raspiproject.altervista.org/ I hope you like it and you want work with me

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joan
Posts: 14093
Joined: Thu Jul 05, 2012 5:09 pm
Location: UK

Re: Can L298N power up a Raspberry Pi?

Tue Apr 09, 2019 4:55 pm

No it can not. The L298N module power supply is intended to provide enough current for the logic circuitry, not a computer. It supplies enough for an Arduino which is low power device, nowhere near enough for a Pi.

gordon77
Posts: 4079
Joined: Sun Aug 05, 2012 3:12 pm

Re: Can L298N power up a Raspberry Pi?

Tue Apr 09, 2019 4:56 pm

The board may only have a 78m05 regulator which can only supply 0.5A.

MarkR
Posts: 154
Joined: Fri Jan 25, 2013 1:55 pm

Re: Can L298N power up a Raspberry Pi?

Wed Apr 10, 2019 9:20 pm

Check the specs, most pcb-mounted regulators will run a Zero, but not a Pi 3 or something. Depends which Pi.

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