Deep Dive w/Scott: ESP BLE and USB Host #adafruit
0Join Scott as he recaps ESP BLE work, keyboards and USB host. Support him and Adafruit by purchasing Adafruit gear from https://adafruit.com. Join the Discord at https://adafru.it/discord
0:00 Getting Started
5:38 Housekeeping
10:00 Mailbag
10:55 installed the CP 7.1.1 on a Raspberry Pi Z W2 issues. / ( use latest )
15:03 - overhead / return to mailbag
15:42 AF Data cable /4449 https://www.adafruit.com/product/4449
17:20 Multifunctional USB Safety Tester https://www.adafruit.com/product/4232
17:50 Usb CP2102N usb to serial converter / 5335
19:10 New products from UM ESP 32 Feather S3 https://esp32s3.com/
22:20 Tiny S3
24:23 Pro S3 / PicoBlade to JST-PH
28:59 BLE - converting broadcast net ( NRF52 read sensor and broadcast ) w/bridge
31:30 Desktop / gthub CP BLE_BroadcastNet
32:05 Can an iphone work as ble key for our iot devices? key like authentication key
33:03 PR for Add native bridge example
34:01 io.Adafruit
34:22 Raspberry PI and the stock shortage that seems to have created a 50+ dollars Pi zero a thing.
35:05 BLE bridge with AIOBLE? Or similar? All Asyncio?
35:31 Bridge core ( ble.start_scan ) bls_broadcstnet*.py
37:37 adafruit io bridge dashboard
40:28 Adafruit LED plastic enables visibility of the purple blink
42:20 Bridge output
42:32 so the background BLE scans are non blocking so CPy user code is not interrupted?
43:35 Blinkng 2 different colors to know the different sensor data received
45:03 Color picking trick rainbow.colorwheel based on reversed_address
47:55 Native bridge is not in the library yet - see Learn Bluetooth LE sensor Nodes to Raspberry Pi WiFi Bridge (by John Park )
49:45 complicated instructions to get the WiFi Bridge going
50:32 Packet Buffer examples working now PR 158 - insulate code from time sensitivities
52:15 Do you have WiFi always on, and connected to the router? Do you know your current (I) use when you are scanning and sending with WiFi?
53:50 ble_packet_buffer_client.py
55:45 ble.start_scan
56:21 NRF app for BLE advertising
58:40 how do you make a custom BLE server *buffer_service.py complex characteristic ( perhaps https://circuitpython.readthedocs.io/projects/ble/en/latest/characteristics.html )
1:04:35 Adafruit BLE characteristics ( ble io bindings )
1:07:38 download the two files from S3 the uf2 and bin, I need to write the bin first to the esp32-s3 then it should boot with a bootloader directory where I drop the uf2 file in. Is that correct?
1:09:35 data descriptors in python https://docs.python.org/3/howto/descriptor.html
1:11:00 Is there a way to make a raspberry pi zero run circuitpython the same way the pico does? I am trying to use usb_hid on the zero but it wont work and pico runs to slow
1:11:39 learn guide bare_metal no os https://learn.adafruit.com/circuitpython-on-raspberry-pi-bare-metal-no-os
1:13:17 USB Host Pico-PIO-USB using PIO https://github.com/sekigon-gonnoc/Pico-PIO-USB
1:19:00 Pico usb host demo
1:21:57 data + and - wires go to uart tx rx pins or any pins ?
1:24:41 github issue 5986
1:26:44 Seniply / colemake configurator qmk.fm
1:27:19 switch to overhead
1:27:45 In order to have a Pico or ESP32 communicated with a user space program, is Serial COM the only option?
1:28:29 So I followed the guide and have CircuitPython installed (no os) on the raspberry pi zero 2. But it doesn't seem to work. But my pc doesn't detect anything when I plug it in
1:29:14 interested in making a midi usb host. I hope it's not so different than what we are doing here
1:30:00 ETA of usb 2.0 HOST support for HIGHSPEED devices in TinyUSB for original rpi zero (BCM2835) ? (only Teensy 4 chip has both supported for now)
1:31:33 flashing rainbow on hdmi what does that mean?
1:32:27 TinyUSB has USB Host support for HID (keyboard,mouse) and there's a PR for MIDI, but that's it for now I think
1:32:48 pluki (sp) trackball interaction with keyboard
1:34:00 layers on CMK Configurator
1:35:10 running custom code ( not CMK or QMK ) - for colmax keyboard
1:36:02 how long did it take you to make the switch?
1:36:25 if you want more ergonomic keyboard - don’t use QWERTY
1:37:55 Split keyboards are the way to go
1:38:45 keyboardio keyboard ( previous keyboard )
1:42:58 pimpmykeyboard.com
1:44:50 Keycap families DCS, DSA, and SA Family - ortholinear
1:46:35 keyboard can be CP or HID only
1:47:00 code.py in the keyboard
1:49:15 future refactoring…
1:49:40 “this is a bug” - editing the keyboard code using the keyboard - risky
1:52:25 other standards via and vial
1:52:32 is adafruit going to make a diy vr controller as they HAVE made a vr headset and i have it but im using terrible controllers and i was wondering if you would make some.
1:54:33 keyboard “stages”
1:57:45 any ideas for naming ?
1:58:05 Broadband update / https://wa-law.org / right to repair / share the cities slack
2:05:47 wrapping up / next week also friday / USB Host / https://github.com/adafruit/deep-dive-notes
2:08:30 pet the cat
2:09:14 have a great weekend