cross-posted from: https://lolimbeer.com/post/20122

> Heya there all! > > I have a lil project with a customized build of openwrt and I need about 4 of the compute module 4’s, one with about 4G RAM and ideally at least 8GB eMMC. > > I was intending to use them with the DF Robot IoT router carrier board for the sweet 2x1Gb interfaces. > > I filled out the notify me from pishop.us and a couple others, but does anyone happen to know either good alternatives with about the same RAM, on board storage, and performance or a good place to pick some up? > > If it’s an alternative, ideally a literal alternative since I already have the DFRobot interface boards. But, if it’s a reasonable price, performance, and it’s compatible with openwrt in about the same form factor I’m still open to it! > > Oh and I’m also open to purchasing used ones even at MSRP, but I won’t give someone $200 for it like most scalpers want, lol. > > Anyways, appreciate everyone’s time! Hope y’all are havin’ an awesome day. :)

Recommendations for beginners? I have a specific project I'd like to undertake with certain goals I'd like to achieve, but I've only done some very basic programming and very little electronic/electrical work. Figuring out how to get started is a little overwhelming.

My goal is to replace my infotainment system in my car with something much more modern. There are exactly zero aftermarket replacement options for my specific car and unfortunately the stock system is tied into other systems, such as the HVAC. The stock system already has a 7" touch screen, though I'm not certain it has the same aspect ratio as the one sold on raspberrypi.com.

My dream is to pull out the factory "radio" module and the touchscreen and replace them with a raspberry pi 4 (or maybe there's a better one for this?) and the touchscreen that goes with it. I figure I'll need a DAC HAT (the car has a center speaker... maybe I want a DSP? 5.1ch?), a CAN Bus HAT (PiCAN3? PiCAN2?), some I/O HAT that I can map the physical HVAC controls to (I'm fairly certain the current system not only displays HVAC status info, but actually transmits commands from the HVAC buttons, but I might be wrong)... I'd also like a backup camera, maybe even with the moving lines (CAN Bus link the steering wheel position data?), Andriod Auto, Navigation... and if all of that doesn't max out the I/O already maybe even accelerometer/gyro data-logging and analysis and dashcam/rearcam recording.

It's ambitious, especially for a beginner... and I don't expect to have it working in the next year. I'd love to know of some resources that I can use to learn how to accomplish all of these goals. Books? YouTube channels/courses? Forums?

Any help would be greatly appreciated.

cross-posted from: https://lemmy.cat/post/1470

> I'm looking for a radio alarm clock project that I could do with a Raspberry Pi or a NodeMCU (ESP32/ESP8266), a small LCD screen and a small speaker. > > Do you have any ideas? Does it exist? If not, how should I approach the project? Any advice on speakers for the Raspberry Pi?

This code gives you the base to create a network testing appliance based on a Raspberry Pi (4 recomended) using touch screen controls.

This code with an attached Inky Impression screen, will display the weekly weather in nice icons and descriptive text. #Foss