Join Scott as he wraps up #CircuitPython2022 and then talks all about BLE on the ESP32-S3.

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Chat with folks 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.

0:00 Getting Started

3:30 Hello/welcome’/ housekeeping

6:00 python to navigate a bad router web interface (using the module "mechanize") to "auto-reboot it" via command line

6:30 AMD 5950X - compile code in the blink of an eye,

7:25 Cat Cam - Spook in the window

8:11 Where we left off - CP 2022

10:21 FoamyGuy 2022 blog

12:09 Android App mention - Glider for iOS - starting FileGlider for android!

12:51 Out during March - FoamyGuy taking the slot tentatively

13:55 KeithTheEE - Projects / home automation / time, datetime, and RTC, multicore JIT, scientific and ulab

16:35 ​when will the floppy disk support be finished for c.p?

17:14 Floppyio draft pull request pr 5852

18:30 https://numba.pydata.org/

18:55 Is there a way to get the BLE datetime in Circuit Python / BLE current time services

20:40 deshipu -PWM SAMD bug

22:41 cool watch project

23:20 improvements to automated testing and regression is important

24:50 mdroberts1243 - background support for communication

27:13 Molecularist - wish for more audio in support / Teensy Audo Library ?

31:19 https://learn.adafruit.com/building-circuitpython

31:43 book recommendations?

32:31 learn guide - https://learn.adafruit.com/choose-your-circuitpython-board

33:02 Tammy’s CP 2022 thoughts / Dependency Managment tools / Twitch https://twitch.tv/tammymakesthings

35:42 Design a CP board / KiCad 6 looks good

36:09 Show and Tell on Wednesday

36:58 Cortex microcontroller books - ARM Cortex M3 and M4 reference

38:00 USB complete

39:40 Monday next week ( last day of the month deadline for CP 2022 thoughts )

40: 20 Phils Lab has a Kicad tutorial on udemy

41:10 Will ampy be supported for ESP32S3 workflow?

42:40 for nrf52840, with few exceptions (crystal, reset, SWD and ADC) any GPIO can do anything.

45:19 File transfer over I2C?

45:40 good book on ESP32C3 ?

45:51 audio code tour github

53:05 switch to github code search ( cs.github.com ) repo adafruit/circutpyton audio_dma_setup_playback

55:03 ESP32 by Erik Bartmann?

55:42 Feather Kicad parts

57:05 github pull requests is:pr author:tannewt pr 5927

58:42 BLE scanning working

59:33 Server support ( after connection )

1:00:43 https://punchthrough.com/how-gap-and-gatt-work/

1:02:40 Broadcastnet learn guide ( Bluetooth LE Sensor Nodes to Raspberry Pi WiFi Bridge )

1:04:34 BLE keyboards Q: split keyboard

1:06:33 BTF-LIGHTING WS2812B

1:07:03 ESP32 can do BLE - 4.0 - not extended advertising

1:08:14 Apple AirTags

1:09:50 can do extended data advertising -

1:10:20 BroadcastNet

1:12:40 code.py (nimble) github Adafruit_CircuitPython_BLE_BroadcastNet

1:14:40 Deep Sleep wakeup - always on for 5 seconds ( issue filed )

1:15:30 Download fresh bundle - extract *blinka_bridge.py copy to Circuitpy drive

1:18:00 iPhone model with Ultra Wideband

1:18:55 rename code.py, and install new code.py workflow

1:19:45 being careful with secrets file

1:20:34 requests vs adafruit_requests as requests

1:21:03 SQLite database on Circuit Python hardware directly? // look in micropython // not in CP yet

1:23:30 S3 mini - build appropriate binary for PS-RAM less version

1:30:57 install libraries on other CP

1:31:23 - “NotImplementedError” - cpu temperature

1:32:30 incrementing sequences numbers to detect missing data

1:32:50 found it - but it crashed…

1:35:49 look at CPU temperature code

1:36:17 maybe the S3 can’t read the CPU temperature

1:37:20 visit esp32.com topics -looks like the IDF doesn’t support cpu-temperature yet

https://github.com/espressif/esp-idf/blob/master/docs/en/api-reference/peripherals/temp_sensor.rst

1:40:28 turn on BLE debugging

1:41:12 unsupported scan event

1:43:05 timeout for the scan isn't defined?

1:43:31 look in shared bindings for timeout

1:44:44 if flashing doesn’t work - check serial

1:45:25 Neopixel problem in discord

1:46:49 2 scans completed “Scan done” vs. “scan done” / scan timeout 0

1:48:18 Nimble API code 0 means use stack default timeout

1:49:25 duration_ms “forever” - int32max

1:54:35 wrap it with a while loop so in never exits

1:55:40 safe mode - what happened ?

1:56:22 How do I figure out what devices can listen for these advertisements? What version of bl do they need to have?

1:57:16 assertions has to do with printing out exception exception

1:57:59 check nimble error - recently added check_nimble_error / CHECK_NIMBLE_ERROR

1:59:05 see a lot of labs using

1:59:25 use nrfconnect on my phone

1:59:53 assertion may be a separate error - would be great to see a backtrace!

2:00:30 calling it / wrap up

2:01:30 join discord

2:02:45 Cat Cam

2:03:35 end of stream