I have an application that is exactly 2 IO short. Is it possible to run the flash in 2 bit mode (ESP32-PICO-D4) to get an extra 2 IO from the unused spi Pins?

First pinout diagram for my ESP32-MAXIO board. ESP32-MAXIO-pinout.jpg PDF is here: https://drive.google.com/open?id=1CV0D7zXjQ7nvmXURzU4LyxH_rTmgoW2m I don't love messing with Inkscape and as I discovered there are a lot of things SVGs can do that it can't (Embedded fonts for example). So, rather th...

Fresh from the Manufacturer, and my soldering iron (for the UPS). I have my first 5 prototypes for testing. AND a hand built UPS board I will also be testing. Still waiting on components so I can build my test rig, and finish the UPS board. I intend to make these boards ONLY with external antennas, ...

If you can find time to design another prototype or just add extra feature - it would be nice if the board had IC f.ex. INA3221 that could monitor the complete status of the battery and power voltages. The onboard co-processor can sense the state of the battery, as in it's voltage. Charge voltage i...

Ok, so the dev board progresses. I Have 5 prototypes coming out of the factory today. https://i.imgur.com/Iqtjesi.jpg https://i.imgur.com/JS9HggI.jpg Also got some test boards back from PCBGOGO.com who are fantastically fast at making really cheap (5 bucks for 10 boards) PCBs. First one is a test ha...

ESP_Sprite wrote:Yes, you're free to modify it however you want (but if it breaks, you get to keep both pieces).

I was pretty sure that was correct, however the confirmation is helpful. Thank you. [Breaking it, That's the fun part ]

There's a software bootloader at offset 0x1000. This is the first non-ROM program that the ESP32 runs after reset. Ok, so this is it? https://github.com/espressif/esp-idf/blob/master/components/bootloader/subproject/main/bootloader_start.c So, it can in theory be customized, provided it does not ex...

Is the first 32KB of flash before the partition table safe to use?

And if not, whats stored there?, whats it's purpose? I can't find anything documented about it so any pointers would be appreciated.

Hi, I have been searching all over and I can't find any dev kit that has 16MB flash size or even 8MB for that matter. I want to develop an application that needs to update OTA and the 1MB partition is too small. Is my solution right now only custom design from scratch?? Hi, I am working on a new de...

It does appear that the semantics are documented ... see: https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/station-class.html#begin Notes: * It is possible that calling begin will result in the module being in STA + softAP mode if the module was previously placed into AP mode. Ok, thats...