SDK • Tight timings PIO + USB, how to do it?
I'm working on a project that needs to drive a CRT screen (MDA monitor). I was able to do this with GPIO and DMA. It works nicely so far. I have 3 GPIO state machines, one for HSYNC, one for VSYNC and...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Correct config and overlay for CAN on...
I'm doing bringup on a new CM4 carrier board that includes an MCP2515 CAN controller. The test CM4 is loaded with the lite version of Pi OS 11.7. The mcp2515 is wired to CAN1 as follows:[MCP2515]...
View ArticleAutomation, sensing and robotics • Alps Alpine HSCDTD008A Geomagnetic Sensor
Has anyone every used one of these really economical(i.e. CHEAP) magnetometers before. I have several of these units, and what to put one on the submersible ROV I am working on. I am not having much...
View ArticleGeneral • How can I use a 5V signal without damaging the Pico?
My current design is going to use a 74HC245 to connect a bi-directional data bus from a 6502 based computer (5V).However, I have 3-4 pins that are one direction that come from either the 6502 or the...
View ArticleC/C++ • Driver (LKM) programming with pinctrl or userspace library
Hello,I'm trying to work with a rotary encoder and linux RT.The more I read, the more I think the "easy" solution would be to use the libgpiod V2. But following my first idea, I would have liked...
View ArticleCompute Module • Power led blinking after end provisioning
Hi, I'm working with CM4 and and using the official provisioning procedure for my project.I noticed that the power led (D1 on the IO board) flashes at the end of the procedure. During the rest of the...
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Automation, sensing and robotics • Stuttering stepper motor when connected to...
Hi all, I've wired a stepper motor to a TB6612 stepper motor driver which is in turn connected to a Raspberry Pi. An image of the stepper motor driver is given below.The wiring is as follows.VM...
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Beginners • Buster - Why does x-session-manager not have startlxde-pi?
This on a Pi 4 running Buster:'Code: pi@raspcondo:/usr/bin $ sudo update-alternatives --config x-session-managerThere are 4 choices for the alternative x-session-manager (providing...
View ArticleAI Camera - IMX500 • AI Camera Script Running
Hi, is it possible to make a Pi AI Camera run a script when it sees something?Statistics: Posted by Jcoop920 — Thu Oct 24, 2024 10:04 pm — Replies 1 — Views 39
View ArticleBeginners • Motor Pi Zero W
Hi, can I hook up motors to a Pi Zero W? If so, what is the maximum amount?Statistics: Posted by Jcoop920 — Thu Oct 24, 2024 10:07 pm — Replies 2 — Views 48
View ArticleTroubleshooting • Rasberry Pi 4 will display without SD Card but get lines...
I Recently purchase a rasberry pi 4 model B. I flashed it with the recommended OS (64bit). When booting it up with SD card installed I either get various lines on the screen or not supported or no...
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Troubleshooting • PI 5 Composite Video seems to be displaying as 16x9
Hello,I am trying to get composite video working on my CRT TV. I have used raspi-config to enable composite video. It is currently displaying, The login screen and desktop environment are displaying...
View ArticleBeginners • Making a desktop alias/program for an "sh" command
I am completely new to Raspberry Pi. I am making a book scanner according to this person's instructions. It's all in Japanese, which is fine for me, since I read Japanese. This same person has made a...
View ArticleBeginners • Is there a simple and foolproof way to upgrade the OS?
I have three Pies running Buster. I have hesitated to upgrade the OS as it seems to be a a rather difficult and time consuming procedure.The documentation says:To update the operating system to a new...
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Beginners • A02YYUW Waterproof sensor, UART works, but need to write data to...
HI,I have A02YYUW (UART version, A0221A) running on Pi Pico 2. but to get the code below to work I must to write a byte to it each time before data is returned. I can't get a stream of data like...
View ArticleAdvanced users • Picamera2 in yocto based image
So, I want to build an image for my Raspberry Pi 4 Model B to run an application, and for that, I need to install the Picamera2 package. I've already created a recipe using the Pip2bitbake tool...
View ArticleAdvanced users • Pi4 HDMI, Wayland, labwc: Force RGB565
I have a strange requirement to configure an OS so it is RGB565 through the entire graphics pipeline to avoid any pixel format conversions.Using a Raspberry Pi 4, configured with the vc4-kms-v3d...
View ArticleBeginners • No green light, whatever I try, only red
I have a brand new RPI5 (after installing 4 RPI4's a year ago)I installed the heatsink, but whatever I try, I can't get it started.-different PSU's-with or without SD cardI press the powerbutton next...
View ArticleMicroPython • v1.24.0 released
v1.24.0: RP2350 and ESP32-C6 support, RISC-V native emitter, common TinyUSB codeThis release of MicroPython adds support for the new RP2350 MCU, improvedRISC-V support with native code generation,...
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Automation, sensing and robotics • solid state relay not working as i expected
my code works fine with a normal relay as seen in this diagrami hate the clicking sound so i got a Solid State relay https://www.amazon.com/dp/B0C6M1S3YB. after i installed the SS relay in, it did not...
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