Search found 25 matches

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: 210

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: 367

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: 808

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: 401

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: 1820

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: 530

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: 2247

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
by bobolink
Mon Aug 06, 2018 11:32 pm
Forum: General Discussion
Topic: iOS BLE example to help start ESP32 project?
Replies: 3
Views: 1538

Re: iOS BLE example to help start ESP32 project?

Two resources: https://learn.adafruit.com/crack-the-code?view=all Uses Adafruit products https://www.bluetooth.com/develop-with-bluetooth/build/developer-kits/bluetooth-starter-kit Uses a Raspberry Pi The first is a good introduction. The second is sort of a course with labs, etc (Requires email reg...
by bobolink
Thu Aug 02, 2018 12:57 pm
Forum: ESP32 Arduino
Topic: How to hide BLE in ESP32?
Replies: 9
Views: 1360

Re: How to hide BLE in ESP32?

Again, not sure if solicitation is the kind of hiding you want but ANCS is an iPhone BLE service which must be solicited. Here is someone talking ANCS implementation on the ESP32 with Mr. Kolban
https://github.com/nkolban/esp32-snippets/issues/430
by bobolink
Thu Aug 02, 2018 12:02 pm
Forum: ESP32 Arduino
Topic: How to hide BLE in ESP32?
Replies: 9
Views: 1360

Re: How to hide BLE in ESP32?

I think it has to be supported in the BLE implementation on the ESP32. It’s optional. The ESP32 isn’t “found” because it isn’t advertising (transmitting) its services all the time. Its receiver is listening for a certain transmission, if heard then it starts advertising as a normal peripheral. It’s ...

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