Questions tagged [raspberry-pi-pico]
The Raspberry Pi **Pico** is a series of microcontroller boards from the Raspberry Pi Foundation, typically using its RP2040 microcontroller chip. It is a much smaller device than the main series of Raspberry Pi computers.
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Baking a Raspberry Pi Pico W before reflow soldering?
JLCPCB is trying to tell me that the RPi Pico W needs to be baked to reduce moisture before putting it through reflow soldering. They're saying that "It is moisture-sensitive according to the ...
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TMC2209 UART Communication Via Circuitpython And Adafruit
I want to control a Nema 17 (Usongshine 17hs4023) stepper motor with a TMC2209 (Twotrees version) stepper driver via UART in CircuitPython using this library from Adafruit. The setup uses a Raspberry ...
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Pocket device grounding issues - WiFi and static electricity
I have built a small device that fits inside an Altoids tin because it neatly fits in your pocket.
In the tin:
Raspberry Pi Pico 2 W
2 x Solar panels
10F supercapacitor (to power device in the event ...
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HC12 UART communication suddenly stopped working
I want to get 2 picos to communicate via UART and a HC12 chip and I managed to get it to work in the past but somehow it just stopped working.
Here are the 2 picos with the HC12 chip
And the code just ...
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Using a MDDRC10 driver with a Raspberry Pi Pico
I want to use a MDDRC10 motor driver with a Raspberry Pi Pico. But I can't get it to work from the manual. As I understand it from page 3, anything over 1.5 V will activate the channel and then I can ...
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Multiple Buck Converters kills dead Pi Pico?
I designed a circuit for a portable infinity mirror tetrahedron. It includes a battery to power it while it isn't docked, a pi pico W to run the 6 APA102 based LED strips, some contacts on the outside ...
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Pico scanvideo library and driving ILI9488 DPI display with VSYNC HSYNC PCLK and 16-bit RGB
I have a 2.6 in 320x320 display that I would like to drive with the Raspberry Pi Pico 2 but I am having some issues with my code that I am not sure how to fix. I am not quite familiar with this ...
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USB reset when connecting external ground
I have an application with a Raspberry Pi Pico H (SC0917). The Pico is connected to a Windows PC via USB and is powered by the USB connection. It also drives devices via an auxiliary circuit using ...
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Pi Pico GPIO1 transition very long compared to GPIO0
I've written a simple program the transitions GPIO0 and GPIO1 high to low and low to high "at the same time".
The board is powered over USB and not connected to anything. I've got my ...
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nRF24L01+ Hardware not responding with pico
I want to use a nRF24L01 module with a pico but I geek on getting an error that the Hardware is not responding.
I followed this video for the pinout:
and the code is:
...
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Circuit design for TPL9202 8 Channel low side relay driver
I am designing a board that will be required to switch on many relays, hence I am using TPL9202 to do the work.
I have validated the psuedo-circuit on a single TPL9202 on a breakout board and it works ...
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Voltage reading always high RP2040
Basically I have a connection like this.
My processor is a rp2040.
And when I tried to read the voltage like this:
...
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Integration of AC-DC Power Module on PCB
I will preface saying that this is my first time posting here so please forgive any obvious mistake I could make.
I am in the process of designing a PCB for a simple terrarium control system. Mainly, ...
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DS1302 RTC chip stops on battery power
I am working on a project, where I have a Raspberry Pi Pico and then a DS1302 chip to keep time when the pico is not powerer. The whole thing is powered by a single lithium battery. The battery powers ...
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Understanding power and current limits in circuits
This question arises from a confusion about theory and seeing successful projects online.
I want to connect a DFPlayer Mini MP3 module and a speaker to a Raspberry Pico Pi 2 microcontroller and it's ...