diff --git a/_posts/2024-05-17-no-more-microsd.md b/_posts/2024-05-17-no-more-microsd.md index 9c00f07eec..35a44c888f 100644 --- a/_posts/2024-05-17-no-more-microsd.md +++ b/_posts/2024-05-17-no-more-microsd.md @@ -29,14 +29,27 @@ Things mentioned in the video (some are affiliate links) : - 32x32 LED Panel: - Matrix LED Hat: - Rainbow Ribbon Cable: -- 5v/5a USB-C Power Supply: +- 5v/10a AC to DC Power Supply: (Affiliate links may be included in this description. I may receive a small commission at no cost to you.) -## Projects +## Notes This project was built using [rpi-rgb-led-matrix](https://github.com/hzeller/rpi-rgb-led-matrix) +After getting the new power supply I noticed a few odd things + +- When powered via hat only with the new 5v/10a AC to DC power supply, the USB drive wasn't recognized +- When powering via USB-C 5v/5a the LED panel was too dim to display some colors so it looked distorted + +I read the Pi hat [documentation](https://learn.adafruit.com/adafruit-rgb-matrix-plus-real-time-clock-hat-for-raspberry-pi) over and over, and no where did it mention that anything else was needed other than a large power supply. I thought for sure it was now a hardware issue and was in over my head. I dropped a message in a Discord that both [Jeff Geerling](https://www.jeffgeerling.com/) and I are in and he mentioned checking out [this post](https://raspberrypi.stackexchange.com/questions/27708/is-setting-max-usb-current-1-to-give-more-power-to-usb-devices-a-bad-idea) + +In that post it suggests to add `max_usb_current=1` to your `config.txt`. + +I tested it and sure enough the Pi can now power the LED panel, the Pi, and the USB drive all from a single power supply connected to the hat. 🎉 + +Thanks Jeff! + ## Join the conversation