Search found 28 matches

by bobolink
Thu May 23, 2019 4:46 pm
Forum: General Discussion
Topic: Query regarding ADC features in ESP32 WROVER
Replies: 8
Views: 611

Re: Query regarding ADC features in ESP32 WROVER

They make an Audio Development Framework. Maybe that would interest your team.
by bobolink
Mon Apr 01, 2019 3:53 pm
Forum: ESP32 IDF
Topic: Failed to find Xtensa toolchain
Replies: 2
Views: 297

Re: Failed to find Xtensa toolchain

OK, Thanks
by bobolink
Sun Mar 31, 2019 3:56 pm
Forum: ESP32 IDF
Topic: Failed to find Xtensa toolchain
Replies: 2
Views: 297

Failed to find Xtensa toolchain

My fault-- I tried to upgrade the tools without reading the directions! Mac OSX printenv IDF_PATH -- works cp -r $IDF_PATH/examples/get-started/hello_world . -- works make menuconfig -- works make flash -- xtensa-esp32-elf-gcc: command not found WARNING: Failed to find Xtensa toolchain, may need to ...
by bobolink
Sun Jan 13, 2019 1:15 pm
Forum: ESP32 Arduino
Topic: Question regarding core usage on the esp32 with Arduino esp-now example
Replies: 3
Views: 563

Re: Question regarding core usage on the esp32 with Arduino esp-now example

This is how I use esp-now: /* __________________________________________ GLOBAL INFO core 0 is the communications processor. Uses the ESP-NOW protocol on the 2.4 GHz radio This process runs as a task created on core 1 core 1 is the UI processor. Maintains the M5Stack LCD menu Runs Arduino setup() an...
by bobolink
Sat Dec 15, 2018 12:47 pm
Forum: Showcase
Topic: [Info] MAKERFACTORY EBB-ESP32
Replies: 2
Views: 826

Re: [Info] MAKERFACTORY EBB-ESP32

With all that area, would be a dream to route the board!
But the new consideration would be maximum trace length.
by bobolink
Mon Sep 17, 2018 5:40 pm
Forum: General Discussion
Topic: Esp32 and audio (text to speech)
Replies: 4
Views: 1829

Re: Esp32 and audio (text to speech)

If talkie for Arduino works for you you can try
https://github.com/bobh/ESP32Talkie
Output is on a DAC pin.
by bobolink
Sat Sep 15, 2018 12:33 pm
Forum: Hardware
Topic: ESP32 Development Board with 3.3v in and USB
Replies: 1
Views: 774

Re: ESP32 Development Board with 3.3v in and USB

I read this: “Above options are mutually exclusive, i.e. the power supply may be provided using only one of the above options. Attempt to power the board using more than one connection at a time may damage the board and/or the power supply source.” From: https://docs.espressif.com/projects/esp-idf/e...
by bobolink
Fri Sep 07, 2018 12:17 pm
Forum: Showcase
Topic: FT81X shield for ESP32 DevKitC
Replies: 10
Views: 2866

Re: FT81X shield for ESP32 DevKitC

To inhibit the voltage I layout jumper pins directly in front of the devC board usb connector with a tall jumper :D . The jumper physically prevents inserting a usb cable but connects internal power when installed. Remove for development. If that is what that rpi circuit is for. https://www.digikey....
by bobolink
Thu Aug 23, 2018 12:00 pm
Forum: Hardware
Topic: Custom PCB's, how far do you go?
Replies: 4
Views: 798

Re: Custom PCB's, how far do you go?

I just identify the new or risky part of a design, breadboard that, then go straight to a board. This was a switching regulator module on the boards out for fab now. I’m sort of in transition. I use the biggest module now whenever possible. Instead of a ESP32-Wroom module I use a complete DevkitC. I...
by bobolink
Sat Aug 11, 2018 12:01 pm
Forum: General Discussion
Topic: FreeRTOS alternatives
Replies: 10
Views: 3266

Re: FreeRTOS alternatives

Any update?
Not on the RIOT boards list.
http://doc.riot-os.org/group__boards.html

I’m going to learn this OS on an Adafruit m0 board but would like to switch to an ESP32 at some point.
Thanks

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