Description
What it is
The Blue 3-Lead Digital DC Mini Voltmeter is a 0.28 inch adjustable device that allows for measuring DC voltages up to 100V.
Features
- Type: Digital DC Mini Voltmeter
- Filters: 3 blue leads
- Display size: 0.28 inches
- Measurement range: 0-100V DC
What it is for
This voltmeter is ideal for monitoring voltages in Arduino and electronics projects, suitable for both beginners and experts. It can be used to build a voltage monitoring system for power circuits.
Tutorial: How to use 3-Lead Digital DC Mini Voltmeter
The 3-Lead Digital DC Mini Voltmeter is perfect for measuring DC voltages from 0 to 100V in electronic projects. Useful for beginners and intermediates, it allows for accurate voltage monitoring.
What you need
- 3-Lead Digital DC Mini Voltmeter
- Arduino or compatible microcontroller
- Test clip or multi-layer connector
- Multimeter (for verification)
Steps
- 1. Check the voltmeter’s compatibility with your microcontroller.
- 2. Connect the voltmeter to the microcontroller using the VCC, GND, and DOUT pins.
- 3. Verify the specific pins from the datasheet.
- 4. Run the example code on the microcontroller.
- 5. Test the measurement with a multimeter.
- 6. Program the microcontroller to read values from the voltmeter.
- 7. Verify the accuracy of the measurement.
- 8. Install the voltmeter in your project.
Mini project
Build a voltage monitoring system for a power supply circuit. In 30 minutes, connect the voltmeter to an Arduino and display the voltages on a 16×2 LCD.
Common mistakes
- Connect the VCC to the GND.
- Ignore the DOUT pin configuration.
- Do not verify the measurement with a multimeter.
- Do not properly program the microcontroller.
Recommended accessories
- 16×2 LCD Display
- Arduino Uno
- Multimeter
- Test leads
Frequently asked questions
How can I check the voltmeter’s compatibility?
Check the datasheet or contact the supplier.
Can I use this voltmeter with a microcontroller other than Arduino?
Yes, but check compatibility on the datasheet.
Does the voltmeter work with voltages above 100V?
No, it only works up to 100V.







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