Search found 27 matches

by commando_j
Fri Jan 27, 2023 5:57 am
Forum: IDEs for ESP-IDF
Topic: Eclipse with IDF or Espressif-IDE
Replies: 2
Views: 2083

Re: Eclipse with IDF or Espressif-IDE

Yes this is reassuring. I also looked up your name and saw that you are an Espressif engineer, so that confirmed things.
Will Espressif be updating their how-to install page to also recommend the IDE? Thanks
by commando_j
Thu Jan 26, 2023 9:14 pm
Forum: IDEs for ESP-IDF
Topic: Eclipse with IDF or Espressif-IDE
Replies: 2
Views: 2083

Eclipse with IDF or Espressif-IDE

I had Eclipse with ESP-IDF setup a few years ago using Kolban's youtube guides. I'm trying to get back into it but of course versions are newer so that guide doesn't apply 100% now. But now I see this Espressif-IDE. It doesn't seem to be officially backed by Espressif but is used by some. My questio...
by commando_j
Wed Dec 18, 2019 8:55 pm
Forum: Hardware
Topic: Holding a GPIO pin during deep sleep
Replies: 3
Views: 6556

Re: Holding a GPIO pin during deep sleep

With nothing connected to the pin, - Internal Pull-down value: ~45K - Your Vcc: 3.3V (?) = 73uA per pin Depending on the external circuitry hooked to those pins, it could increase the current drain as well. The 45K pull-down is average, it can vary a lot. Can you share the general connection to each...
by commando_j
Mon Oct 28, 2019 5:51 pm
Forum: General Discussion
Topic: ESP32-WROOM Occasional reset, and then locked in bootloader WDT
Replies: 10
Views: 11280

Re: ESP32-WROOM Occasional reset, and then locked in bootloader WDT

The I2C bus can hang up. "If the data line (SDA) is stuck LOW, the master should send nine clock pulses.The device that held the bus LOW should release it sometime within those nine clocks.If not, then use the HW reset or cycle power to clear the bus. The master I2C must be able to generate this “bu...
by commando_j
Thu Oct 24, 2019 1:11 am
Forum: General Discussion
Topic: Garbage on only first lines of booloader output
Replies: 2
Views: 3056

Re: Garbage on only first lines of booloader output

Well I can see how I may have caused the issue. With old age comes bad eyes. The GND pin that I thought I connected my logic analyzer to was actually the CMD pin of the ESP32 flash on my dev kit. Now I know why I was seeing crazy garbage on my SPI pins! SPI is better now, but I still have the garbag...
by commando_j
Wed Oct 23, 2019 4:41 am
Forum: General Discussion
Topic: Garbage on only first lines of booloader output
Replies: 2
Views: 3056

Garbage on only first lines of booloader output

Has anyone seen this before? It only happens on one of my two ESP32 boards. I don't think it was happening before, at least I never noticed it (I'm sure I would have) Is this a partially corrupted bootloader? (Ignore the date codes that were generated). If it was a baud rate issue then you wouldn't ...
by commando_j
Mon May 06, 2019 3:35 pm
Forum: General Discussion
Topic: MCP795xx RTC ESP-IDF Library
Replies: 3
Views: 4846

Re: MCP795xx RTC ESP-IDF Library

Further update. The negatives on the Maxim chip is the much higher standby current of around 100uA vs 1.xuA on the MCP part. Also, the leap year works until 2100 with Maxim, vs 2399 in the MCP. The Maxim has an integrated diode and resistor for the backup which saves you two parts on your board. Not...
by commando_j
Mon May 06, 2019 3:15 pm
Forum: General Discussion
Topic: MCP795xx RTC ESP-IDF Library
Replies: 3
Views: 4846

Re: MCP795xx RTC ESP-IDF Library

Just to update my post. In my search for a different RTC that met my needs (size and cost) I discovered a pin-compatible chip to the MCP79510. The Maxim DS1390U/DS1394U. The advantage with this chip is better documentation, and there are at least some ESP32 projects with maxim RTC chips, although no...
by commando_j
Mon Apr 29, 2019 2:44 pm
Forum: General Discussion
Topic: ESP32 on Batteries - your setup
Replies: 50
Views: 91403

Re: ESP32 on Batteries - your setup

You have the option for ultra-low quiescent current buck-boost regulators if you can deal with BGA packages. Or something like this LTC3443 if money is no object. http://www.farnell.com/datasheets/43210.pdf It's hard to find a buck-boost that is cheap, easy package to solder, decent current (600mA+)...
by commando_j
Sun Apr 21, 2019 6:13 am
Forum: General Discussion
Topic: Low voltage on all pins, even 5v and 3.3v [RESOLVED]
Replies: 10
Views: 17202

Re: Low voltage on all pins, even 5v and 3.3v

Just to be sure, do you have something else you can read with your meter? A separate source, like a desktop power supply with 12V output, with nothing connected to it. Just to ensure your meter is set right. It's not set to AC voltage is it? Some meters default every time you turn them on to AC. Can...