Introduction:
We are back again here with the latest Arduino Project, i.e DC Voltmeter using Arduino and Seven Segment Display. This time we will be interfacing Arduino with 7 segment display and MA7219 IC to measure voltage ranging from 0-50V with almost no error at all. This DC voltmeter is linear with voltage and shows a linear characteristics from 0.01 Volt to 50 Volt. Voltage beyond 50 Volt isn’t measurable by it. The above figure shows the 0-50V DC Voltmeter using Arduino and Seven Segment Display.
The Arduino inbuilt 10 bit ADC, can be used for measuring the 0-50V. Popular MAX7219 display driver, connected with Arduino Uno is used for displaying the measured DC voltage.
You can learn more about 7 segment Display at: Stopwatch using 4 Digit 7 Segment Display & Arduino
Parts & Components:
1. Arduino UNO Board
2. MA7219 IC
3. Resistors – 27K & 1200K
4. 1N4728 3.3 Volt Zener Diode
5. 4 digit, common cathode Seven Segment Display
0-50V DC Voltmeter using Atemga328 and Seven Segement Display:
The same project can also be implemented using Atmega328 micro-controller. All you need to do is replace the Arduino Board with Atmega328 micro-controller, with addition of few more components as in the circuit diagram below.
kod:
We are back again here with the latest Arduino Project, i.e DC Voltmeter using Arduino and Seven Segment Display. This time we will be interfacing Arduino with 7 segment display and MA7219 IC to measure voltage ranging from 0-50V with almost no error at all. This DC voltmeter is linear with voltage and shows a linear characteristics from 0.01 Volt to 50 Volt. Voltage beyond 50 Volt isn’t measurable by it. The above figure shows the 0-50V DC Voltmeter using Arduino and Seven Segment Display.The Arduino inbuilt 10 bit ADC, can be used for measuring the 0-50V. Popular MAX7219 display driver, connected with Arduino Uno is used for displaying the measured DC voltage.
You can learn more about 7 segment Display at: Stopwatch using 4 Digit 7 Segment Display & Arduino
Parts & Components:
1. Arduino UNO Board
2. MA7219 IC
3. Resistors – 27K & 1200K
4. 1N4728 3.3 Volt Zener Diode
5. 4 digit, common cathode Seven Segment Display
The same project can also be implemented using Atmega328 micro-controller. All you need to do is replace the Arduino Board with Atmega328 micro-controller, with addition of few more components as in the circuit diagram below.
kod:
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