Desk of Ladyada - Goin' With the Flow Control

This week on the Desk of Ladyada it's been a prototyping bonanza with a lot of work on testers and new designs. First up we wanted to wrap the tester for the CH9102F but found that part of our test is to check the DTR/DTS RTS/CTS pains and the Linux kernel driver for the CH343 family did not have CTS working! Thankfully we found an out-of-tree driver https://github.com/SoldierJazz/ch343ser_linux.git that does the job and allows us to perform the test procedure. Next up we put together prototypes for the EZ-Link ESP32 and tried out some code, like the CH9102F, there were some flow control issues to work out in the BT SPP stack but it works! Finally we test out the latest CircuitPython PicoW WiFi stack work, where there is slow-n-steady progress. The Great Search - ESP32 modules in all Shapes and Sizes! https://www.digikey.com/short/dpd0wdnq This week's great search is a two-fer as we look for small classic ESP32 modules! Traditionally we've used the big ESP32-WROOM https://www.digikey.com/short/fftf34vt such as seen in the HUZZAH Feather https://www.adafruit.com/product/3405 , OR we've used the u-blox NINA W10 https://www.digikey.com/short/n2d0cwn5 such as on the Airlift Bitsy https://www.adafruit.com/product/4363 . We just got notice that the NINA is Last Time Buy, so it's time to find a replacement for AirLift. Likewise, we designed the EZ-Link with ESP32 Pico Modules https://www.digikey.com/short/m853jv84 but perhaps it's a little overkill since we don't need so much Flash and PSRAM? Let's use Digi-Key plus the Espressif part selector https://products.espressif.com/ to find some good alternatives. Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ ----------------------------------------- #deskofladyada #thegreatsearch #adafruit