Deep Dive w/Scott: CircuitPython2022 and ESP32-S3

Adafruit Industries

Join Scott as he recaps other folks' #CircuitPython2022, discusses ongoing ESP32-S3 work and answers questions folks have. Support Adafruit by purchasing hardware from https://adafruit.com Chat on the Adafruit Discord at https://adafru.it/discord. All notes are available on GitHub with links into the videos. Thanks to @askpatrickw and @dcd for making and maintaining the notes: https://github.com/adafruit/deep-dive-notes/ 0:00 Getting Started 1:00 hellos to all 3:00 cat cam 3:40 Hello/housekeeping 7:00 github notes https://github.com/adafruit/deep-dive-notes/ archive 9:09 CP 2022 - send emails - get blogged 10:07 Kevin - display io 11:25 Q: when debugging with print statements, is there a way to include the statement line number in the print string? 11:45 Question: does circuit python have the ability yet to play simultaneous audio? E.g. via 2 wav files or foreground / background. Maybe through mixer 12:58 Desktop - github - why is issue 5881 is "longterm"? https://github.com/adafruit/circuitpython/issues/5881 (BLE ) 14:45 github BLE Adafruit_CircuitPython_BLE 17:25 desired: want to disconnect the undesired centrals! / examine the source code 19:30 Various issues involved - connection central vs. peripheral 20:55 github Adafruit_CircuitPython_BLE issues / look into device info service 22:30 back to the 2 wave files 23:53 Q:working with the analog in features on a QT pi 2040 and when I tied the pin I was reading from to ground on the board it was giving me a value other than zero, around 160. Is this normal? 24:45 Q: built latest CPY for S3 - doesn't boot on any of my S3 boards. Known issue? copy firmware.uf2 over, seems ok, re-starts, never mounts. No error on UART0 output. 25:48 back to CP 2022 - graphical widgets 28:22 unpythonic.net 31:05 github gist / broadcom / midi 32:09 forums / 33:00 blog comment - 33:34 BlueMicro / skip forward to CircuitPython 2022 / seesaw / i2c peripherals / keyboards / very deep sleep 36:00 - RISC-V vs. ARM Core… 36:45 Awesome CircuitPython called Popular Projects Enabled by CircuitPython 37:44 forums / overclocking / platform knowledge 39:00 SPI peripheral 39:25 forums / CP.org login / my adafruit page ? 40:00 intuitive flash file system / handle secrets storage 40:53 limited multicore access 41:20 Q: ​if any of your viewers could please, please, take up i2c peripheral support for the rp2040 I would be grateful! 41:57 I2C peripheral thoughts - copy API 42:55 integrate learn guides with what user purchased 44:00 Unified event system 44:33 some comments on youtube re: CP 2022 45:20 github gist 46:50 Lego collaboration? 47:35 Python threading 48:20 considerations when setting priority 48:53 adafruit blog 50:30 Multicore 52:07 ulab extension 54:30 new CP podcast coming 55:20 I played with the Micropython multicore a few months ago and it wasn't stable 55:39 dafruit_requests and adafruit_minimqtt would be nice to be threaded / asyncio 56:15 AIOHTTP Async IO for networking 58:30 Does Wippersnapper use mqtt? 59:10 be more sciency 1:00:20 2022 will be different with weeks off from Deep Dives 1:01:49 switching gears to ESP-land 1:02:00 Adding BLE to ESP 1:03:30 How many cores are on the ESP32-S3 ? 1:05:11 tannewt esp_ble branch 1:06:49 beyond compare / sublime merge ( git manipulation tools ) 1:07:35 How much power does the ESP32-S3 use with BLE (no WIFI)? 1:10:10 Are there any examples in CP doing double buffering aka glitch free bucket logging ? Maybe via M2M ? 1:10:35 how well does the nordic power tool work with measuring other processors power usage? 1:12:09 also the JouleScope 1:12:55 any information if there are nRF52840 successors on the horizon with more RAM memory? 1:13:17 NRF 5340 1:15:00 Zepher support not in Circuit Python 1:15:18 rf 9160 1:15:39 dual M-33 1:16:30 https://www.youtube.com/watch?v=JFDiqPHw3Vc&ab_channel=AndreasSpiess 1:16:49 The second core is basically just a built in HCI adapter so if you can get the IPC to work on bare metal, you don't need Zephyr. 1:17:50 Bluedroid and Nimble ( grew up alongside Zepher ) 1:18:25 github nrf5340 apache mynewt nimble 1:20:11 back to esp_ble branch 1:23:20 start with scanning, advertising .. 1:25:08 talk over core issues 1:25:40 Pull requests 1:26:19 pr 5902 1:30:12 pr 5899 1:31:06 pr 5860 1:31:25 pr 5884 1:32:32 pr 5885 - first CP multicore bug fixed by tannewt 1:36:30 pr 3892 ESP NeoPIxel fixes / resetting pins 1:40:20 lower power when pins are ‘pulled’ vs. floating 1:42:20 looking for the low power pin state pdf https://www.st.com/resource/en/application_note/an4899-stm32-microcontroller-gpio-configuration-for-hardware-settings-and-lowpower-consumption-stmicroelectronics.pdf 1:45:06 pr 5894 1:45:50 C3_writeable ports/esprif make BOARD=espressif_ep32s3_devkitc_1_n8r2 1:51:30 ESP32-S2-DEVKITC-1 on digikey 2:04:53 wrap up - follow on discord https://github.com/adafruit/deep-dive-notes 2:06:59 pet the cat 2:07:03 Have a great weekend ( timecodes may have drifted by 30 seconds or so )