lc technology ESP8266 realy x4 Problem

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hossam.t
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lc technology ESP8266 realy x4 Problem

#1 Post by hossam.t » 29 Aug 2019, 01:44

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 >
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TD-er
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Re: lc technology ESP8266 realy x4 Problem

#2 Post by TD-er » 29 Aug 2019, 15:05

Can you give a schematic of the board?

hossam.t
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Re: lc technology ESP8266 realy x4 Problem

#3 Post by hossam.t » 31 Aug 2019, 02:04

..
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epost
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Re: lc technology ESP8266 realy x4 Problem

#4 Post by epost » 31 Aug 2019, 10:07

There is a lot of information on this website

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

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Re: lc technology ESP8266 realy x4 Problem

#5 Post by TD-er » 31 Aug 2019, 11:11

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.

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Re: lc technology ESP8266 realy x4 Problem

#6 Post by epost » 31 Aug 2019, 11:46

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

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Re: lc technology ESP8266 realy x4 Problem

#7 Post by TD-er » 31 Aug 2019, 12:29

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.

Domosapiens
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Re: lc technology ESP8266 realy x4 Problem

#8 Post by Domosapiens » 31 Aug 2019, 12:34

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
30+ ESP units for production and test. Ranging from control of heating equipment, flow sensing, floor temp sensing, energy calculation, floor thermostat, water usage, to an interactive "fun box" for my grandson. Mainly Wemos D1.

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Re: lc technology ESP8266 realy x4 Problem

#9 Post by enesbcs » 31 Aug 2019, 20:22

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

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