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 )