please Make a project on "ARDUINO UNO with ESP8266 & 8 CHANNEL RELAYS" and program it..... 🙏🙏🙏🙏🙏

@Random Duo I guess you already know this. For the rest : Changing baud rate to appropriate one will show the correct message.

Glad I could help!

I will to add more. Thanks.

What did u use instead of the regulator ?

how?! without voltage distribution

Thanks.

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@@lasthandman are you talking to yourself ? hahaha

If you could read values from inverter and send it using MQTT, you can receive it on your smartphone. Please check my MQTT videos. It's part of my new series "Alexa based smart light"

This can be achieved in multiple ways. Place a motion sensor/ distance measuring sensor (ultrasonic)/ touch sensor with door bell and send the signal through bluetooth or MQTT to the Raspberry pi. On receiving the signal, Raspberry pi could execute the command to click the picture. If you are using a foscam, check for foscam APIs. They also provide this feature for developers.

I would recommend to use ESP8266 Dev Board + LED + Mobile to achieve what you are looking for and skip Arduino. The reason I am saying that is you could achieve what you want without Arduino. For some specific reasons, if you wish to use Arduino then you have following choices: 1. Use combination of Arduino + LED + Mobile + Bluetooth module and control LED from your mobile using bluetooth. In this case, you don't need to use ESP-01 2. Let's say you wish to control throught WiFi. Then use Arduino + ESP-01 + LED + Mobile + MQTT (CloudMQTT). Mobile will send the on/off request to MQTT. You can download an existing MQTT app for mobile. ESP-01 will be a subscriber for MQTT. As soon as, mobile sends the on/off request to MQTT, ESP being a subscriber will receive the same. Next, ESP will pass on the on/off request to Arduino through serial communication and Arduino will turn the LED on/off basis on the instructions it has received. Further, in option 2, you can still choose to skip Arduino, ESP-01 and use ESP8266 dev board instead. Personally, I would prefer to use serial communication where something is already designed using Arduino and I need to extend the functionality using ESP. For example: Let's say an arduino based car is already designed and now I want to control it using Alexa voice commands. In this scenario, I will add ESP-01 on top of Arduino. Hope this helps.

to program esp8266 he is using RX->RX and TX->TX and for listening or serial communication he is using RX->TX and TX->RX.. this is what i understand correct me if i m wrong

I believe your question is, "Can I connect nodemcu with UNO WITHOUT regulator ?" Here, I am assuming that when you are saying..."NodeMCU", you mean ESP-01 board and not the NodeMCU development board. Assuming that my assumption is correct, answer is...if you are lucky, it would work for you. You need to use 3.3 v from UNO instead of 5v and rest of the process would remain same. The challenge you would face is to upload code on ESP-01. If it does not work, you would keep struggling for hours. Though if you use 3.3v regulator, it would surely run for you. So, my vote is with using regultor. Though you can still give it a try. Don't attempt to use 5v directly with your ESP-01. It may destroy your ESP. Hope this helps.

ArduinoThing thank you very much for your precious time and attention sir. i will definitely try this out

That's the right port man!:)

Please try following the video from 8.40. Also, try unplugging arduino board from your computer and replug it.

Also do check TX RX wires. You might need to swap.

It generally does not matter and ESP-01 works properly. Though it would be a good idea to pass it through a logic level converter. Thanks.

@@techsteering Thanks for the prompt reply!

I did not try. Let me check and get back to you.

Thank you

Hey, Just a quick update. I tried the communication from Arduino to ESP-01 where ESP-01 was a receiver and it worked for me. I will record the solution on weekend though here are the quick steps: 1. Schematic will remain same 2. Exchange the code. Code of Arduino will go to ESP-01 and vice versa 3. Keep baudrate as 115200 everywhere. =========All the best=================