As the name suggests multi arduino. It can perform various function. It can be used as a multimeter, game console, calculator, clock. It is small in size and can be carriedeasily anywhere.Children will like to have it. It can be used by adults for checking compnents. resistance of a resistor. /it can control the speed of dc motor and glow of leds.

it works on lipo battery supply.

Materials required for the project are

1. Arduino nano

2. oled display 0.96''

3. female headers

4. resistors 1k x2

5. push buttons x3

6. lipo battery

7. teal time clock module ds3231

8. beep

9. on/off switch x1

   
   

   

   

Arduino need to be programmed.Source codes are given.

See the schematic for circuit design.