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Hack Chat Transcript, Part 2

A event log for ESP32-S2 Hack Chat with Adafruit

New part day is best day

dan-maloneyDan Maloney 05/06/2020 at 19:530 Comments

morgan12:30 PM
can you post a link to that upcoming stream?

nardev12:30 PM
@pt thnx.

morgan12:30 PM
or where it will be

tannewt12:31 PM
@morgan it'll be on youtube.com/adafruit

morgan12:31 PM
thanks

limor12:31 PM
circuitpython good exprience depends on native usb

limor12:32 PM
@morgan for now we're using the USB-UART built in ROM bootloader thats setup on the SAOLA

limor12:32 PM
but there is a USB bootloader! so we'll try that out once we've got a more stable build process

morgan12:32 PM
cool

todbot12:32 PM
UF2 is awesome

limor12:33 PM
i love ROM bootloaders

todbot12:33 PM

https://github.com/microsoft/uf2

GITHUB MICROSOFT

microsoft/uf2

UF2 is a file format, developed by Microsoft for PXT (also known as Microsoft MakeCode), that is particularly suitable for flashing microcontrollers over MSC (Mass Storage Class; aka removable flash drive). For a more friendly explanation, check out this blog post. Also, take a look at the list of implementations at the bottom of this document.

Read this on GitHub

limor12:33 PM
we also love UF2

johnkirk joined  the room.12:33 PM

Ben Hencke12:34 PM
whats the deal with web usb? is that going to be a thing, and any ideas for using it with the s2?

FYI, I'll be posting a transcript and a link to the live stream recording after the Hack Chat

pt12:34 PM
Aaron Knox@Adafruit Industries Could you not create a native USB board that the existing ESP 32 or ESP 8266 can plug into to make it a visable as a drive?

Prof. Fartsparkle12:34 PM
have you considered tinyuf2 yet? sounds like more maintainable future for uf2

limor12:35 PM
@aaron knox nope - no native usb support

samy kamkar12:35 PM
Hi all! Thanks for doing the Hackchat! Any work or investigation on the ToF support on the S2? Is the primary goal for indoor positioning or have there been other interesting features available there?

David Bates joined  the room.12:35 PM

Salman Faris joined  the room.12:36 PM

pt12:36 PM
Jeff KingDoes EspressIF have any data out on TOF?? (3rd request)

limor12:36 PM
sounds like there's a way to use the I2S audio peripheral to do 'gpio dma' type activities for cameras, displays etc

morgan12:36 PM
as per https://esp32.com/viewtopic.php?f=10&t=14532 ToF isn't supported yet

samy kamkar12:38 PM
Are all features going to be using IDF or will some things be implemented without it?

limor12:38 PM
for ToF you can also check out the AT86RF233 https://www.cambridge.org/core/journals/journal-of-navigation/article/zigbee-ranging-using-phase-shift-measurements/5BFC205C159385A42549C484A31D8ED1/core-reader

tannewt12:38 PM

https://adafru.it/discord

DISCORD

Discord - Free voice and text chat for gamers

Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more. Get your free server now!

Read this on Discord

samy kamkar12:38 PM
Ahh cool, thanks!

Peter Winter12:39 PM
Thx for this cool chat and all the answers, @limor and @all! Cool to see so many "familiar" / well-known faces here :). Getting excited now for all the cool things to come based on the S2. Greetings from Germany✌️, out now!

pt12:39 PM
Aaron Knox@Adafruit Industries Not existing ESP32 /8266 I know they're not supported, rather have a new board that is detected as a device on your pc that accepts the files and relays it onto the ESP32 or 8266.

Salman Faris12:39 PM
any suggestion on esp32 pico antenna design, need to know the impedance matching circuitry, can't find more information on datasheet Thanks.

@tannewt - Can you post a link to your weekly live stream?

Ben Hencke12:39 PM
@Salman Faris its 50 ohms.

pop1312:39 PM
Would you mind comparing the EESP32 chips on the espressif site?

limor12:40 PM
we're planning on making all sorts of devices with the ESP32S2 - feather, metro, CLUE, circuit playground!

tannewt12:40 PM
@Dan Maloney https://www.youtube.com/playlist?list=PLjF7R1fz_OOXBHlu9msoXq2jQN4JpCk8A

Salman Faris12:40 PM
@Ben Hencke can you please check this thread https://makergram.com/community/topic/171/need-help-esp32-pico-antenna-design

pt12:41 PM
Bob GreenwadeIs there any difference (that you know of) in how the S2 might handle audio signals, either through analog I/O pins or via I2C?

Adam Bryant@Adafruit Industries would it still be pin compatable with the microbit?

David Bates12:41 PM
Looking forward to playing with this

samy kamkar12:41 PM
Do you know how low level the 802.11 support is?

limor12:41 PM
the WiFi CLUE would be micro:bit shape/pin compatible

samy kamkar12:41 PM
Technically 802.11 supports GFSK at 2.4GHz with 1 and 2Mbps datarate...which is the same modulation/encoding as BLE :) Even if it could be (ab)used to just send BLE adverts, that could be pretty interesting

limor12:42 PM
ok turns out the S2 has an arbiter of the ADC2+WiFi so you can use both at once, but wifi will get prioirity

Ben Hencke12:42 PM
@Salman Faris I've done a chip antenna circuit with the pico, happy to share more details and debug, perhaps of this channel since its OT

David Bates12:43 PM
Any on-chip/onboard battery management better deep sleep?

limor12:43 PM
@samy kamkar probably not as low as you like!

morgan12:43 PM
I hope to see a BLE only one as well

limor12:45 PM
For audio, I2S will get you best quality

tannewt12:45 PM
@David Bates not that I've seen

morgan12:45 PM
light sleep, deep sleep, off.

David Bates12:45 PM
👍

Ben Hencke12:47 PM
thank you!

pt12:47 PM
@Dan Maloney may we wrap up and get the engineers back to making hardware ??

Absolutely! Thanks so much for your time today!

pt12:47 PM
MOAR HARDWARE

limor12:47 PM
pick up a dev board if you want to play with ESP32S2 https://www.digikey.com/product-detail/en/espressif-systems/ESP32-S2-SAOLA-1MI/1965-ESP32-S2-SAOLA-1MI-ND/11643290

jmw77eng joined  the room.12:47 PM

pt12:48 PM
(on a related note, thank you community for all the support as adafruit ships orders when we can as we continue to operate as an essential business to help NYC https://adafruit.com/covid )

Thanks Adafruit! This was a really good session. Thanks for putting up with the chat blips - the system got a little overwhelmed for a bit there.

morgan12:49 PM
awesome! thanks you all, super excited for this line and to make a devboard for these, thanks for answering all these great questions

pt12:49 PM
SERVER CRUSHIN

morgan12:50 PM
haha, nuthin in stock

Everyone stay healthy out there. Thanks all for your time today.

And don't forget next week's pentesting Hack Chat with Eric Escobar:

Boian Mitov12:50 PM
Thank you very much @limor and @tannewt :-) Great chat!


https://hackaday.io/event/171299-pentesting-hack-chat

HACKADAY

Pentesting Hack Chat

Eric Escobar will host the Hack Chat on Wednesday, May 13, 2020 at noon Pacific Time. Time zones got you down? Here's a handy time converter! Professional pentesting is not all cops-and-robbers fun, of course. Pentesters have to stay abreast of the latest vulnerabilities and know what weaknesses are likely to exist at a given facility so they know what to target.

Read this on Hackaday

Joshua Young12:50 PM
Thanks!

samy kamkar12:50 PM
Thank you both!

morgan12:50 PM
thank you

Boian Mitov12:50 PM
Thank you @Dan Maloney for organizing it!

Thanks!!

Paul Derbyshire12:50 PM
yeah thanks both @limor and @tannewt . great info

Audi McAvoy12:50 PM
Thanks!

Greg Bushta12:50 PM
Thank you. This was fun and informative.

David Bates12:51 PM
Thanks

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