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Desk of Ladyada - Triple Matrix Bonnet & u-blox UBX Vibes

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Manage episode 469782571 series 1135586
Content provided by Adafruit Industries. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Adafruit Industries or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://ppacc.player.fm/legal.
This week, we were all over the place with a bunch of different designs and experiments. After last week's analysis of the TLV320DAC3100, we made some updates to the design and re-booked prototype PCBs. We also designed a triple-matrix bonnet: with our latest work on getting HUB75 RGB matrices working on the Raspberry Pi 5, we can now do matrix control on the latest Pi 5 chip. But we're limited by the RP1 chip, so to get big displays going, we'll need multiple strands—these don't use significantly more bandwidth because half of the pins are shared. Finally, we ended the week by getting another older prototype working: the SAM-M8Q is an entry-level all-in-one GPS from u-blox. It comes with both UART and I2C interfaces, plus a built-in antenna, so it's ready to go out of the box. The NMEA interface is trivial, but we also wanted to try out the UBX interface, and thankfully, Claude 3.7 was able to vibe-code it for us in a jiffy.
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83 episodes

Artwork
iconShare
 
Manage episode 469782571 series 1135586
Content provided by Adafruit Industries. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Adafruit Industries or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://ppacc.player.fm/legal.
This week, we were all over the place with a bunch of different designs and experiments. After last week's analysis of the TLV320DAC3100, we made some updates to the design and re-booked prototype PCBs. We also designed a triple-matrix bonnet: with our latest work on getting HUB75 RGB matrices working on the Raspberry Pi 5, we can now do matrix control on the latest Pi 5 chip. But we're limited by the RP1 chip, so to get big displays going, we'll need multiple strands—these don't use significantly more bandwidth because half of the pins are shared. Finally, we ended the week by getting another older prototype working: the SAM-M8Q is an entry-level all-in-one GPS from u-blox. It comes with both UART and I2C interfaces, plus a built-in antenna, so it's ready to go out of the box. The NMEA interface is trivial, but we also wanted to try out the UBX interface, and thankfully, Claude 3.7 was able to vibe-code it for us in a jiffy.
  continue reading

83 episodes

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