Search found 417 matches

by mikemoy
Wed May 16, 2018 1:49 am
Forum: General Discussion
Topic: Auto program Boot Flasher is still mysterious!
Replies: 7
Views: 4185

Re: Auto program Boot Flasher is still mysterious!

I tried the 1nf, but it worked on a few but not all prototypes. So I kept upping the capacitance while monitoring it with an oscilloscope until i got to a stable work ability across all boards. 0.1uf was the sweet spot for me, but you mileage may vary ;)
by mikemoy
Tue May 15, 2018 8:00 pm
Forum: General Discussion
Topic: Auto program Boot Flasher is still mysterious!
Replies: 7
Views: 4185

Re: Auto program Boot Flasher is still mysterious!

I made my own programming board as well. Start with sticking a 0.1uf cap on EN to GND.
by mikemoy
Thu May 10, 2018 4:17 pm
Forum: ESP32 IDF
Topic: SPI DMA and interrupts...
Replies: 4
Views: 2050

Re: SPI DMA and interrupts...

There is an example of pre-transfer callback in \esp-idf\examples\peripherals\spi_master
There is also a post-transfer callback as well that you can setup to tell you when the transfer is complete.
http://esp-idf.readthedocs.io/en/latest ... aster.html
by mikemoy
Thu May 10, 2018 12:50 pm
Forum: Showcase
Topic: New ESP32-WROVER Ethernet Board
Replies: 32
Views: 18817

Re: New ESP32-WROVER Ethernet Board

Moved from News to Showcase, as it seems to give a bit of discussion. Thanks, you were correct. I should have put it here, sorry. Sorry guys, I did not get any e-mail alerts on this topic after I posted it so I just assumed that people thought it was a silly idea, and have done nothing with it sinc...
by mikemoy
Wed May 09, 2018 4:38 pm
Forum: General Discussion
Topic: Ideas on testing memory
Replies: 6
Views: 1476

Re: Ideas on testing memory

Not sure if you wanted to have your own test code for this, but did you see "Run memory test on SPI RAM initialization" in menuconfig ?
by mikemoy
Sat May 05, 2018 3:22 pm
Forum: General Discussion
Topic: ESP32 suiteable as a VoIP phone?
Replies: 4
Views: 3698

Re: ESP32 suiteable as a VoIP phone?

Funny, you should bring this up. A month ago i just finished a VoIP phone project for a client. I did try the RPI way first. You can use one of these to help with the audio in/out for testing your code, then later use the IC in there on your own board. https://www.amazon.com/gp/product/B001MSS6CS/re...
by mikemoy
Thu May 03, 2018 12:11 pm
Forum: General Discussion
Topic: Powered ESP32 with 18650, LiPo, or button battery
Replies: 15
Views: 11467

Re: Powered ESP32 with 18650, LiPo, or button battery

bumped into this today and thought of you. would this work for you? it has enough output current for the ESP32. https://www.dfrobot.com/product-1712.html?tracking=5ae99700e0477&utm_source=DFRobot_Newsletter&utm_campaign=c7965b3172-EMAIL_CAMPAIGN_2018_05_02&utm_medium=email&utm_term=0_0633b8d2f9-c796...
by mikemoy
Wed May 02, 2018 12:29 am
Forum: ESP32 IDF
Topic: Preview release: CMake-based build system for ESP-IDF
Replies: 65
Views: 21930

Re: Preview release: CMake-based build system for ESP-IDF

ok cool. So do we just keep checking that link to see if things changed, of is there a better way to know when an update is posted so we can try it ?
by mikemoy
Tue May 01, 2018 6:42 pm
Forum: ESP32 IDF
Topic: Preview release: CMake-based build system for ESP-IDF
Replies: 65
Views: 21930

Re: Preview release: CMake-based build system for ESP-IDF

Getting Started Documentation is here: https://docs.espressif.com/projects/esp ... index.html I don't know if it's me or what, but those instructions are clear as mud to me. IMHO, you should have a single step by step install without all these links jumping around to areas for the old way. Just mak...
by mikemoy
Mon Apr 30, 2018 4:35 pm
Forum: General Discussion
Topic: Powered ESP32 with 18650, LiPo, or button battery
Replies: 15
Views: 11467

Re: Powered ESP32 with 18650, LiPo, or button battery

Having no idea what your building and your power requirements is going to make it hard to just say "get this"
Try these 2 sites to see if they have something that fits your needs.

https://www.sparkfun.com/categories/28
https://www.adafruit.com/category/44

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