12v battery digital display connection

Other Hardware General Electronics
1

i purchased 12v battery level indicator digital display from aliexpress which show battery percentage and voltage....but i missed the line for audruino and 5-15MA current required

there written:
6V/12V/36V/48V Red LED Lead-acid Battery Indicator Battery Capacity Acid Tester Voltmeter Charge Level Indicator For Arduino

**Description: **

  1. Working current:5-15mA(The lower the battery voltage and current smaller)
  2. Eight electricity Resolution:10% 25% 40% 50% 60% 75% 90% 100%
  3. Voltmeter accuracy:98%
  4. Working temperature: -10 ~ +65centigrade
  5. Operating Humidity: 10 ~ 80%
  6. Dimensions: 482921 mm

Indicator:

Battery voltage is greater than 11.1V, 1 led indicator is lit.
Battery voltage is greater than 11.3V, 2 led indicator is lit.
Battery voltage is greater than 11.6V, 3 led indicator is lit.
Battery voltage is greater than 11.9V, 4 led indicator is lit.
Battery voltage is greater than 12.2V, 5 led indicator is lit.
Battery voltage is greater than 12.5V, 6 led indicator is lit.
Battery voltage is greater than 12.9V, 7 led indicator is lit.
Battery voltage is greater than 13.3V, 8 led indicator is lit.
NOTE:It will only display voltage when measure lead-acid battery!!

i attached it with direct with battery but not working...now i hv arduino...please anybody help me connection and program for it

thanks

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HTB1YJcMdQyWBuNjy0Fpq6yssXXac.jpg800×800 73.2 KB

2

There is nothing "Arduino" about the display... They just added it to lift with the Arduino hype.

PS There is a HUGE difference between MA and mA... Or to be precise, a factor 1 million...

3

Red wire to battery +
Black wire to battery -

That’s it . Prob only work on a 12v battery .

4

septillion:
PS There is a HUGE difference between MA and mA... Or to be precise, a factor 1 million...

Nope! :roll_eyes:

5

Oeps :confused:, 1 milliard (long scale) / 1 billion (short scale)