Introduction: MultiMeter Arduino NANO and OLED I2c 0.96″
Hi, every electronics needs a multimeter, you can buy it or make it
yourself at home. Today I will show you how to make a multimeter with arduino nano and an oled display at home.
- Voltmeter 0 to 25 Volt!!!!!
- Analog Read Value
- Voltage Drop Diode
- Continuity circuit
- Capacitor Measurement
- Signal PWM Generator
Step 1: Voltmeter 0 to 25 Volt!!!!!
Analog pins can measure a voltage not exceeding the supply voltage, but
you can increase the measured voltage by using a voltage divider. I used 7.5K and 30K ohms resistors, With a 5 volt microcontroller supply voltage (NOT ARDUINO, Arduino has a voltage stabilizer connected to the Vin pin) maximum voltage we can connect 25 volts. LINK TO CALCULATOR VOLTAGE DIVIDER
Step 2: Diagram
Step 3: Sketch
Sketch download HERE