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Depends upon PCB size and concentration of ferric chloride.

Ferric chloride

You can make your own. It's easy. I have given all files for free. You can also edit the PCB according to your need.

bluerobotics.com/store/sensors-cameras/sensors/bar30-sensor-r1/

No

Sir in the Cn1 S1 (2) pin connector jumper connection

@@futuresciencetechnology536 yes

No

Do you have flyback diode connected to the relay? If yes, then it may be electromagnetic interference from relay.

can a flyback diode fix this?

@@alifghifarii8428 it may fix.

@@ElectroRetro I've used a flyback diode and soldered it to the relay but still can't fix it, is there another solution?

Place relay further from ESP. That may work.

Sorry that feature is not added in this project. Instead, On the receiver display you can see a green dot blink every time the transmitter send a signal. if the connections are ok, It blink every 20sec apart. Transmitter goes to sleep mode for 20sec and wake up and send the signal. The sleep mode is implemented for increasing the battery backup.

Which blinking signal do you mean?

In transmitter unit code we give the MAC address of receiver unit. So there would be no interference.

If we want to change the MAC address, we change it with the coding of the transmitter. It should be changed with the coding of the receiver. My point is whether changing the coding of the transmitter will solve the problem or the coding of the receiver will also have to be changed.

@@futuresciencetechnology536 you don't have to change the receiver code. Only transmitter code needed to change. Every esp have unique MAC address.

😂You are genius thanks for you

@@futuresciencetechnology536 To get the receiver mac address you can follow this tutorial randomnerdtutorials.com/get-change-esp32-esp8266-mac-address-arduino/#:~:text=Change%20ESP32%20MAC%20Address%20(Arduino%20IDE)&text=You%20can%20set%20a%20custom,old%20and%20new%20MAC%20Address.

Please explain your problem.

@@ElectroRetro the library for Arduino IDE it's Not Working. Because this is not ZIP format Need ur arduino ide in zip format So how do I add these libraries In Arduino IDE

@@ElectroRetro and iam feeling error in library

@@ramrode5350 please name the library you want. I can give the link to download as zip.

@@ElectroRetro ok I will send you

Baat to sahi hai

For schematic and code:- www.instructables.com/DIY-ESP32-Based-Dual-Phase-Interleaved-MPPT/

​@@ElectroRetrobut the library for Arduino IDE it's Not Working. Because this is not ZIP format Need ur arduino ide in zip format So how do I add these libraries In Arduino IDE ?

@@ramrode5350 place all files in same folder and open it using Arduino ide. After that you can install libraries from Arduino library manager.

Yes

GND1 and GND2 are separate from Power GND, I don't have code for Arduino. This project is made for esp32.

I Am using glossy non adhesive paper. Here is the link to a similar paper amzn.to/44jJb95

Thanks ​@@ElectroRetro

Yes

You can replace led with a buzzer and remove 220ohms resistor.

@@ElectroRetro thanks, but do you have circuit diagram for it?

No

Top layer need mirror print.

​@@ElectroRetro thank you so much 😊. Tomorrow I'll try it

@San_DIY 👍

To enable boot mode/programming mode you have to press reset and boot button. Then release reset button first and release boot button. For normal operation you don't have to press these buttons.

@@ElectroRetro is there another way without using the reset button?

@@ElectroRetro what is the name of the reset button? is there a specific model? I use the reset button connected with a jumper is it the same?

@@alifghifarii8428 it's a tactile switch. You can use jumper wire instead.

@@ElectroRetro okay thanks

You can get the circuit diagram at the end of this video

​@@ElectroRetroOh! Ok, I was checking at the description and didn't get to the end of the video 😢.... Thanks.

5:29

well arent you a little waste of energy

press topup button and center tactile switch together to save. And make sure mode switch is in off mode

For NTC resistor there is no + and -

@@ElectroRetro thanks :) also for the code it is saying could not create the sketch, is it possible you paste the code for me?

int ThermistorPin = A1; int Vo; float R1 = 10000; float logR2, R2, T; float c1 = 1.009249522e-03, c2 = 2.378405444e-04, c3 = 2.019202697e-07; void setup() { Serial.begin(9600); } void loop() { Vo = analogRead(ThermistorPin); R2 = R1 * (1023.0 / (float)Vo - 1.0); logR2 = log(R2); T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2)); T = T - 273.15; Serial.print("Temperature: "); Serial.print(T); Serial.println("c"); delay(100); }

flipping the board is good to evenly etch the board.

@@ElectroRetro thank You

6ms

Thanks 🙏

It's bypass capacitor

Thanks! It is to filter noise signals or there is some ac signal in this circuit? I'm starting my studies in electronics

@@mts9816 noise

Did you put the esp into boot mode? If you select baudrate of 115200 and put the esp into boot mode it will show waiting for download.

@@ElectroRetro I fallowed your instructions and I put the EN attached to high and the upload speed is 115200. I didn't solder the esp chip, although I checked the connection with a multimeter and it's all well connected with the wires.

@@lyhongleft3676 did you press reset switch?

@@ElectroRetro I did, and I also made sure it worked cuz it blinks too

When you press reset, Does the serial monitor show waiting for download?

Yes,It's enable pin(En).

@@ElectroRetro Thanks a lot.