Mini OLED DC Voltmeter Module
Build a voltage readout directly into a compact electronics project. This mini OLED voltmeter module gives a DC supply or circuit its own three-digit display without using a separate handheld meter for every glance.
✅ Keep the voltage reading at the device - An embedded display lets you check the connected measurement point in place.
✅ Fit a small display into the project - The 0.5-inch OLED format suits layouts with limited display space.
✅ Choose the display update rate - Five- and ten-hertz settings provide two refresh options for the application.
Give Your DC Project a Visible Readout
An adjustable power supply or small control project is easier to check when the voltage has its own display. The white OLED digits provide a dedicated reading point, while the automatically shifting decimal helps present the value within the three-digit format.
Design the connection around both the supply requirement and the measurement input. The module measures DC up to 30 V, but its own supply requires at least 3.5 V. Check the wiring instructions and fit a suitable enclosure as part of the finished project.
Technical details
- Display: 0.5-inch OLED, 88 × 48 pixels
- Readout: three white digits with automatic decimal
- Measurement range: DC 0-30 V
- Supply: DC 3.5-30 V
- Operating current: under 20 mA
- Refresh: 5 Hz default; 10 Hz configurable
- Stated accuracy: approximately 0.7%
- Package: one voltmeter module
Give your next DC build a compact voltage display of its own.
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