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20 questions
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1 vote
0 answers
509 views

They say that the output current of the Pico GPIO is configurable (2, 4, 8, 12mA). What does it means ? If I choose 8mA, what will happen if I connect a bigger load ? Will the curent be limited to 8mA,...
Marus Gradinaru's user avatar
  • 131
0 votes
2 answers
113 views

I am getting started with a pico and I got the Raspberry Pi Pico MicroPython Learning Kit from waveshare (https://thepihut.com/products/raspberry-pi-pico-micropython-learning-kit-pico-included) It ...
Another_coder's user avatar
  • 101
0 votes
2 answers
809 views

I have 20 ldr photoresistors that I will connect to GPIO. They are connected pretty much like this (but without led): I have also a Hifiberry Dac2Pro connected as a hat. https://www.hifiberry.com/...
acroscene's user avatar
  • 115
0 votes
0 answers
86 views

I thought this would help with designing HAT power. Does anyone have similar measurements while running software and connected devices? Scant information on the current draw. I measured through the ...
JSP's user avatar
  • 19
-1 votes
1 answer
690 views

I have a raspberry pi 3B. It is connected to a 7" RPI Touch screen, (made by RPI). The screen gets 5v from the pi and the pi is connected to a 5v, 2.1A USB power pack. For some reason the power ...
Lightning323's user avatar
  • 101
0 votes
1 answer
497 views

I am new to the raspberry pi world and electronic in general. so I am wondering if it is safe to hook up 20 AWG wires to a car battery and have those wires going into a L298N h-bridge to power 2 ...
Rick's user avatar
  • 11
0 votes
2 answers
1k views

I wanted to know if the measurement could be better, more accurate using INA219 or voltage/current sensors connected with ADCs? Also considering the time to implement both systems, which would give me ...
Harli Lacej's user avatar
  • 17
2 votes
1 answer
507 views

I am trying to use only 1 power supply instead of 2 to power Raspberry Pi and motor, but when I turn on the high current (>10A) motor, it will lead to the Raspberry Pi restarting. I guess it is ...
Pak Ho Cheung's user avatar
  • 123
0 votes
1 answer
57 views

I am trying to create an in-car (headrest) entertainment system using the Pi 3B with 7" screen using OSMC, when OSMC is shutdown it does not fully power off the screen, I can detect the shutdown ...
Simon Payne's user avatar
  • 1
-2 votes
1 answer
222 views

I have an infrared led which works at 3.3V. This is the led . Edit: I couldn't find any specific documentation, it's one of those led you usually attach to rpi infrared cameras. If I attach it ...
diridev's user avatar
  • 1
0 votes
0 answers
180 views

I'd like to build a simple circuit that does the following: controls a RGB LED (RPi 4 has 4 PWM outputs, so I could use 3 of them to control the LED) measures the current draw of each PWM output, ...
mnj's user avatar
  • 113
0 votes
2 answers
569 views

I have a hypothetical project in mind I would like to pursue but wanted to ask this before sinking too much time into it. That being having multiple SPI slaves connected to a Pi Zero. From what I've ...
AustinFoss's user avatar
  • 111
0 votes
1 answer
2k views

I'm planning to buy a Raspberry Pi Zero W to remotelly wake on my desktop pc. To do this task I need that the raspberry always stays awake; is there a way to set the raspberry automatically wake on ...
user1172131's user avatar
  • 103
0 votes
1 answer
175 views

I'm a noob in raspberry pi and in engineering in general. I had an idea for a project but it requires it to be somewhat portable so I need to power the raspberry somehow. I read this article Where it ...
WarHawk's user avatar
  • 23
0 votes
1 answer
210 views

I am using RPi3 ModelB V1.2 for a motor control project. I am connecting Pin1 (3.3V) for power to a micro dc motor. The current drawn by the motor is approx ~70 mA whereas the RPi sources mention that ...
Mahadev Hansda's user avatar
  • 3

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