EPISODE · Feb 20, 2026
Deep Dive w/Scott: CircuitPython in Zephyr native simulator
from Adafruit Industries · host Adafruit Industries
Join Scott as he shows off CircuitPython running locally in the Zephyr native simulator and discusses how it provides a feedback loop for LLM agents. He'll also answer any questions folks have. Thanks to dcd for the timecodes: 0:00 Getting started 3:00 Hello everyone - welcome to deep dive 4:10 adafruit ESP32-S2 example microcomputer running circuitpython 5:32 using LLM agents to generate code 5:55 new monitor - mouse tiler 6:37 mouse tiler using absolute positioning 7:25 resumed pi session with generate_mousetiler_layouts.py 8:49 example how LLM's are game changing 9:19 update KWIN scripts settings 11:00 "My AI Adoption Journey" https://mitchellh.com/writing/my-ai-adoption-journey 15:00 How to test USB without the linux kernel 16:55 Testing is more important now that LLMs are in the loop 17:43 Low level USB IP - using Raspberry Pi to share mouse and keyboard over internet 18:48 USB OCD esp32p4-usbip $35 asked Codex to write code overnight to send USB over wifi 20:30 usbip-pyusb-test w/MNS 21:49 upgraded from $20 to $200 subscription ( only 14% used ) 23:00 S3 USB Host not supported yet 23:46 esp32-S3-USB-OTG https://docs.espressif.com/projects/esp-dev-kits/en/latest/esp32s3/esp32-s3-usb-otg/user_guide.html 25:04 ESP P4 has Ethernet 29:13 considering Octo probes could be accessible over the internet ( over tailscale ) 31:33 Gross PR with job server (build all boards - agent generated) 34:00 demo the TUI interface 38:07 chef analogy in https://www.avo.app/blog/from-pairing-to-leading 40:25 Keep PRs small! ( multiple branches ) 42:20 skip to the testing virtual desktop 43:10 using the zephyr simulator 44:50 edit settings.toml / using pi 47:50 testing to verify web workflow 49:25 web workflow test not working 50:20 pi: "figure out why web workflow not working" 52:07 look at tests/test_web_workflow.py 59:56 wrap back to "My AI aboption" 1:01:23 prioritize step 5 engineer the harnesses 1:03 Wrapping up - new channel #coding-agents-and-llms 1:05:48 out on the 6th ( 2 weeks from now ) Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------
What this episode covers
Join Scott as he shows off CircuitPython running locally in the Zephyr native simulator and discusses how it provides a feedback loop for LLM agents. He'll also answer any questions folks have. Thanks to dcd for the timecodes: 0:00 Getting started 3:00 Hello everyone - welcome to deep dive 4:10 adafruit ESP32-S2 example microcomputer running circuitpython 5:32 using LLM agents to generate code 5:55 new monitor - mouse tiler 6:37 mouse tiler using absolute positioning 7:25 resumed pi session with generate_mousetiler_layouts.py 8:49 example how LLM's are game changing 9:19 update KWIN scripts settings 11:00 "My AI Adoption Journey" https://mitchellh.com/writing/my-ai-adoption-journey 15:00 How to test USB without the linux kernel 16:55 Testing is more important now that LLMs are in the loop 17:43 Low level USB IP - using Raspberry Pi to share mouse and keyboard over internet 18:48 USB OCD esp32p4-usbip $35 asked Codex to write code overnight to send USB over wifi 20:30 usbip-pyusb-test w/MNS 21:49 upgraded from $20 to $200 subscription ( only 14% used ) 23:00 S3 USB Host not supported yet 23:46 esp32-S3-USB-OTG https://docs.espressif.com/projects/esp-dev-kits/en/latest/esp32s3/esp32-s3-usb-otg/user_guide.html 25:04 ESP P4 has Ethernet 29:13 considering Octo probes could be accessible over the internet ( over tailscale ) 31:33 Gross PR with job server (build all boards - agent generated) 34:00 demo the TUI interface 38:07 chef analogy in https://www.avo.app/blog/from-pairing-to-leading 40:25 Keep PRs small! ( multiple branches ) 42:20 skip to the testing virtual desktop 43:10 using the zephyr simulator 44:50 edit settings.toml / using pi 47:50 testing to verify web workflow 49:25 web workflow test not working 50:20 pi: "figure out why web workflow not working" 52:07 look at tests/test_web_workflow.py 59:56 wrap back to "My AI aboption" 1:01:23 prioritize step 5 engineer the harnesses 1:03 Wrapping up - new channel #coding-agents-and-llms 1:05:48 out on the 6th ( 2 weeks from now ) Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------
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Deep Dive w/Scott: CircuitPython in Zephyr native simulator
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