Deep Dive w/Scott: ESP32-S3 BLE #adafruit
0Join Scott as he wraps up #CircuitPython2022 and then talks all about BLE on the ESP32-S3.
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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