Esp 8266-01 relay module review & not working problem solving

this is a short review of Esp 8266 - 01 single channel wifi module.
here is a problem-solving solution if your Esp 01 relay module is not working.
I found a problem on this board when working with it. in this video, I clearly discuss how to solve the problem of this esp 01 single channel relay module.
this small board can be used for different IoT-based projects, for making Alarms & IoT-based security systems.

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#technoreview85 #iot #esp8266

[vernonpedersen]

Thanks for this. I was in the process of tracking down the error myself (I had already discovered the lack of 3.3V to the Enable pin) until I thought to check for other people's experience. Saved me a bunch of time!😀

[qwertyqwerty-yntt]

You make me happy! Thank so much! My issue is solved!

[akshatsehgal]

Hi, i had the same issue and got the module working but the relay output has no power. How can i fix it?

[AMAN_]

Bro which yellow pin i can use to connect as signal pin and connect to esp8266

[jumbo]

My relay is labeled "SRD-03VDC". So I have to connect only 3v to VCC of the module right?

[fredgross]

As an alternative to removing the resistor, connect a 4.7k resistor from GPIO0 to VCC. That will allow the ESP8266 to boot. Also connect CH_PD to VCC since it is unconnected.

[bmcgorakhpur]

Hi, i wish to use it for home sadety, but not have much idea,
Can you tell me what application i need to run it? And do i need to program it?

[madhusudanm]

Router is required?? Or directly we can use mobile wifi

[shilmohan]

How do I program this with Raspberry pi 3 model B ?

[dragonbackbone]

Great video.. I need to have a four channel keyfob that will work two mini servo motors. 3 to 5 volts. Do you have a video for this? Each servo will have a seperate function. Can you give me some idea how to do this? Thank you.. love your channel by the way.

[talwarjatin]

Hi, Very informative . Thanks, KIndly let us know, what is the Mobile App u are using ? which is seen at 2:40 timeline. Thanks a lot

[girishpanchal]

Hi, thanks for nice video. Can I connect to esp01 which is on home wifi from my smartphone which is on other network maybe in some other region?

[deeeemo]

Thanks bro, any idea how to make the default power status OFF

[saadshah]

i have same problem but my controller is nodmcu can i try or not ?

[awdhut-ee]

This is my assumption but while designing pcb someone added resister pads for smd switch and and nobody corrected it, that r2 pad supposed to be boot button