Let's Control It

please help
I have [lc technology ESP8266 realy x4 ] When I search for it via wifi I did not find it .. Since it is the blue LED in the widget ..
It works permanently
Please Help

hossam >

Can you give a schematic of the board?

..

There is a lot of information on this website

https://nl.aliexpress.com/item/32968011 ... b201603_55

I cannot see what chip is being used to control the relais.
They used an ESP-01 module, which only exposes a limited number of GPIO-pins.
So the SMD chip next to the green power socket must be doing something, but I don't see what chip it is.
This makes it really hard to tell what may be going on here.

I think it's a NUVOTON 8 bit 8051 compatible microcontroller

That's a microcontroller running its own program.
Without knowing what it is running, it is near impossible to tell you what's going on here without thorough investigation using a logic analyzer.

Suggestion ... start here:

http://www.chinalctech.com/cpzx/Programmer/427.html

Install APP "EspTouch_Demo" android version to configure wifi account and password for ESP-01 module on the first time of mode 2

epost wrote: ↑31 Aug 2019, 11:46 I think it's a NUVOTON 8 bit 8051 compatible microcontroller

It is a standard 4 channel Serial MCU controlled relay/switch, can be used with ESPEasy and P165 plugin. (If the NUVOTON has its standard program)
viewtopic.php?f=6&t=3245

Hai hosam, have you fixed the problem, becase i have same thing here,

Im on mode 2 of relay modul, the board show the blue light, waiting wifi connection

But until now, i cant find hiw to fix it

I have pushed the switch mode and reset mode, but nothing

Check that switch is really working. In my case was the opposite. Never got the blue led, until I bypass the switch. Maybe yours is short circuit....
Regards,

martin

I think you need to reset it.
remove power
press the S2 button and keep pressed
add power to the module

and then do not press again the S1. I did this also accidentally once and hat the same pain as you