Arduino, potentiometer, percentage

Using Arduino Project Guidance
1

I want to make an arduino project, using a potentiometer that show percentage from 1 to 100.
the percentage result I want to get on android phone by an android app or webpage.
Basically I use this project for water tank level. Please help me

2

suggest an ESP32 which has built in WiFi (for webpage) and Bluetooth Classic and BLE (for communication with a smartphone)
also plenty of IO for attaching water tank sensor (float type, TOF, ????)

2 Likes
3

There's many tutorials which have the pieces of code that you need, have you looked at any of them. You also didn't mention if you had hardware already or not.

1 Like
4

What kind of help do you need - with schematic, code, mobile application etc?

1 Like
5

Handkerchief?

2 Likes
6 
/*
  ReadAnalogVoltage

  Reads an analog input on pin 0, converts it to voltage, and prints the result to the Serial Monitor.
  Graphical representation is available using Serial Plotter (Tools > Serial Plotter menu).
  Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground.

  This example code is in the public domain.

  https://www.arduino.cc/en/Tutorial/BuiltInExamples/ReadAnalogVoltage
*/


void setup() {

  Serial.begin(115200);
}
void loop()
{
  int Val = analogRead(A0);
  Val = map(Val, 0, 1023, 0, 100);
  Serial.print( " Val % =  ");
  Serial.println(Val);
}
1 Like
7

Sir I need code, connections schematic, and basic android application via internet protocol connectivity. I have knowledge and I will develop application. Thanks

8

what do you wish to connect too? how? e.g. WiFi, LoRaWAN, ??????
what Arduino are you thinking of?

9

Sir I want to get result by LoRaWAN/WAN
I mean everywhere I get the water level even I living abroad. Using arduino uno R3

10

to use LoRaWAN you need to check frequencies-by-country then select a suitable LoRa module which supports LoRaWAN (some are only LoRa peer to peer)

also if check if you have a suitable LoRaWAN gatway in range, see gateway map

1 Like
11

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.