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Voltage Monitoring Module For Smart Car
Discontinued
This real-time voltage monitoring module is designed for battery-powered smart robot cars and other DC-powered projects. It continuously monitors voltage to help prevent excessive battery discharge, displaying the reading on a built-in 0.36" three-digit red LED display.
The module detects DC voltage from 2.5 V to 30 V and is self-powered from the measured supply — no external power source is required. With a 300 ms refresh rate and approximately ±0.1 V accuracy, it provides a quick visual reference for battery state during operation.
Key Features
- DC 2.5–30 V Detection Range – Self-powered from the measured voltage
- 0.36" Three-Digit LED Display – Red, real-time voltage readout
- 300 ms Refresh Rate – Fast, continuous monitoring
- Low Operating Current – Less than 23 mA
- Compact Design – 23 × 15 × 10 mm (33 mm with mounting lugs)
- 20 cm Lead Length – For easy installation in robot chassis
Specifications
- Detection Range – DC 2.5–30 V
- Maximum Input Voltage – DC 30 V (exceeding this may permanently damage the module)
- Accuracy – ±1% (above 10 V: ±0.3 V; below 10 V: ±0.1 V)
- Input Impedance – >100 kΩ
- Operating Current – <23 mA
- Refresh Rate – ~300 ms
- Display – 0.36" three-digit red LED
- Lead Length – 20 cm
- Dimensions – 23 × 15 × 10 mm (L × W × H); 33 mm with mounting lugs
- Mounting Holes – 28 mm pitch, 2.8 mm aperture
- Operating Temperature – −10°C to 65°C
Note: The module draws a small amount of power from the measured supply. Turn off the power switch when the robot car is not in use to avoid draining the battery.
Ideal For
- Battery-powered smart robot cars
- DC power supply monitoring
- Battery discharge protection
Package Contents
- 1× Voltage monitoring module
