M.Pugazhendi build a digital voltmeter using Arduino and MAX7219 display driver.
The Arduino inbuilt 10 bit ADC, can be used for constructing / measuring the 0Volt to 50Volt Digital Volt Meter. Popular MAX7219 display driver, connected with Arduino Uno will be used for displaying the measured voltage. This voltmeter can read only DC voltage.
Parts and components
Arduino Uno board
Max7219 4 Digit 7Segment Common cathode displays = 1 Nos
Or Max7219 assembled board
Resistor 27 K = 1 No
Resistor 1.2M = 1 No
IN5913B 3.3 Volt Zener diode = 1 No
Arduino 50V digital Voltmeter using MAX7219 – [Link]
gizlenmis kod
Conclusion
The project is successfully simulated by using the Proteus.
The measured DC voltage is displayed 4 digit 7 segment display.
The Arduino inbuilt 10 bit ADC, can be used for constructing / measuring the 0Volt to 50Volt Digital Volt Meter. Popular MAX7219 display driver, connected with Arduino Uno will be used for displaying the measured voltage. This voltmeter can read only DC voltage.
Parts and components
Arduino Uno board
Max7219 4 Digit 7Segment Common cathode displays = 1 Nos
Or Max7219 assembled board
Resistor 27 K = 1 No
Resistor 1.2M = 1 No
IN5913B 3.3 Volt Zener diode = 1 No
Arduino 50V digital Voltmeter using MAX7219 – [Link]
gizlenmis kod
Conclusion
The project is successfully simulated by using the Proteus.
The measured DC voltage is displayed 4 digit 7 segment display.
https://kulogluelektronik.blogspot.com
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