ESP8266 Compatibility

[iKrushYou]

Hey, I only see mention of ESP32 so I don't want to make any assumptions about compatibility. I already have a bunch of ESP8266s and from what i've read they're more or less the same just with different specs

[HomeSpan]

I've not tried compiling for an ESP8266. To the extent that the Arduino-ESP8266 library is the same as the Arduino-ESP32 library, it would likely compile. However, I'm not sure about performance, or if there are other material differences that would inhibit HomeSpan from operating properly. Have you given it a try?

[iKrushYou]

I have not giving it a try yet I only just discovered this library today. I will probably give it a try over the weekend if I get some time

[nimartin28]

Any further thoughts on this? I love the library--it's terrific, congratulations. But I've found the ESP-32 to be less stable than the ESP-8266 so a port would be great. (My latest problems with the ESP-32 center around WiFi connectivity. Nothing that hasn't been reported in a million different posts about the ESP-32, but no one seems to have a reliable solution. I'm using the KS0413 keyestudio ESP32 Core Board, which is based on an ESP-32-WROOM.)

[nimartin28]

(I don't mean to congratulate the wrong person for creating the library--pushed buttons too quickly.)

[DesignLowKey]

I've tried uploading the same code to an ESP8266 DEV Board... Here's the error-code...
c:\Users\Documents\Arduino\libraries\HomeSpan\src/HomeSpan.h:31:2: error: #error ERROR: HOMESPAN IS ONLY AVAILABLE FOR ESP32 MICROCONTROLLERS!

I don't think it's that easy^^

[HomeSpan]

No, HomeSpan is not compatible with the 8266, though an 8266 can be used as a remote sensor using HomeSpan's SpanPoint functionality.

[HomeSpan]

I've not had any problems with my WiFi on the ESP32, which perhaps is ironic because I picked the ESP32 after having lots of problems with various WiFi boards designed for the Arduino. My thinking at the time was that the dual-core structure of some of the ESP32 chips (though not all are dual core) would provide the stability run the WiFi stack in one core and all my HomeSpan code in the other. I'll look into acquiring an 8266 and see what might be required to port.

[HerbOtto]

I am starting to develop connectivity issues. The MQTT service (also running with homespan) detects the WiFi dropout and reconnects however the homespan service remains offline. Could be a software issue since the hardware stack is in-tact?

I'm using the AITRIP ESP-WROOM-32 - started testing on another board today. Which board are you using?

I tried another library a while back on the 8266 and it worked provided you ran the chip at 160 MHz. So I know it's possible. The number of devices it can handle remains the question. Converting the code may require Ticker for the Blinker class and convert nvs_flash to EEPROM calls.

[HomeSpan]

I'm using an ESP32-WROOM-32 from Adafruit and the WiFi has been rock steady so far. I just bought a few more from Adafruit to build some more devices, and their latest batch uses the ESP32-WROOM-32E, which seems to be the direct successor of the WROOM-32.

[nimartin28]

An ESP8266 version would be exciting because it seems like a lot of HomeKit projects don't need nearly as many ports as the '32 offers. I still haven't figured out where my problem is: my previous information that I'm using a KS0413 key studio ESP32 Core Board is almost certainly wrong as the serial ports are not on the right pin-outs for that board. My information was based on a phone call to MicroCenter, who rebrands their products in the stores--and doesn't seem to know what they have. It is, however, almost certainly an Espressif-made ESP32-WROOM-32 since that I can read on the chip.

[mkllrtxn]

Hi! This is a fantastic library for the ESP32. But has anyone tried to use it on ESP8266 chips? I would like to develop some small projects like switches or temperature sensors on ESP-01S as I only need a few ports.

Should the code be modified in any way to properly work on this kind of devices or it would never work because of the specs?

[danilkorotkov]

HomeSpan is better because esp32 has more resources and espressif supports this chip better for Arduino community.

[nimartin28]

I was asking a genuine question, not trying to get into a competition about who is right about which chip is better. Do you know of a physically small version of the ESP-32 that can be bought in small quantities?

[danilkorotkov]

So you can’t buy esp32 and want to get esp8266 support here for free?) fork and try to refactor WiFi, mdns, crypto and storage. if you so “serious hobbyist” it will be easy for you)

[nimartin28]

Such an interesting series of exchanges, thank you. And since tone is hard to read online, I’ll add that I mean that sincerely: you’ve given me some ideas for my real job, which gets into how people communicate online. I’m now terminating our conversation: I’ve unsubscribed to notifications with this thread and don’t plan to check it again, as I can’t give you either the self-affirmation or the fight you are looking for.

[danilkorotkov]

Two years ago I asked Maxim Kulkin why did he stopped to improve his library. You can ask too.