Edgent indicators are messing up my IOs

[Robinhood]

I recently got the edgent library working on my esp32 (for OTA purposes).
My app worked perfectly with BlynkSimpleEsp32.h, but now I am seeing some problems on some of the GPIOs. After a closer look at the Setting.h and indicator.h files, I think the reason is that some of the IOs (like GPIO4) are being used for indicator LEDs by the edgent library.

Is there an easy way to disable this capability and get my GPIOs back, without needing too much surgery in the code?

[PeteKnight]

Not really an easy way to disable it, but are you really so short of GPIOs on your ESP32 that you can’t change the Settings.h to work with available GPIOs?

If all you want is Blynk.Air OTA capability then you should read this topic:

Blynk.Air OTA minimal code

Hi there, here is the minimal code (extracted from OTA.h) i found working to integrate .Air OTA within blynk script quickly without the need for Edgent sketch, hope that helps somebody: #include <Update.h> #include <HTTPClient.h> //________________________________________________________________ String overTheAirURL = ""; BLYNK_WRITE(InternalPinOTA) { overTheAirURL = param.asString(); HTTPClient http; http.begin(overTheAirURL); int httpCode = http.GET(); if (httpCode != HTTP_CODE_OK)…

Pete,

[Robinhood]

Thank you Pete!
Yes, I can’t really sacrifice any GPIOs , may be one at most.
Another thing that I am using edgent for is WiFi provisioning. Is there a workaround for that too without edgent?

[PeteKnight]

No, as you’ve already read from my Edgent troubleshooting guide, the LED and switch are needed for proper use of of provisioning.

Maybe you should look at some sort of multiplexer hardware…

Using the MCP23017 IO Expansion Board

EDIT NOVEMBER 2021… Anyone interested in controlling multiple relays may also want to take a look at this topic, which uses a pre-built 16-way relay board and 2x 74hc595 shift registers: END OF EDIT . I had a project recently where I wanted to use 5 physical buttons, with built-in LED indicators, to control 5 relays. That meant having 15 GPIOs available, so I built the project around an ESP32 dev board. I also needed a few more GPIO pins for other sensors, so by the time I was done I was o…

ESP8266 16-way relay board using 2x 74HC595 controllers

I saw this post from @Vitokhv recently and decided to order one of these boards and have a play around with it. Here’s a link to another supplier on AliExpress who’s selling the same board: The boards are basically an ESP8266 with two 74HC595 shift registers that allow the 16 onboard relays to be controlled via just 4 GPIOs. They seem to be available in versions that work with a 5v, 12v or 24v supply voltage, and the relays are supposed to be capable of switching up to 250v at 10A each. …

Pete.