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2-wire DC 0.28 inch mini digital voltmeter
2-wire DC 0.28-inch mini digital voltmeter—compact, accurate voltage monitor for DIY electronics, battery packs, and portable devices.
Description
The 2-Wire DC 0.28-Inch Mini Digital Voltmeter is a tiny and precise digital display module designed for measuring DC voltage in small electronic circuits and battery-powered devices. Its 0.28-inch LED display makes it ideal for applications where space is limited while still providing clear and accurate voltage readings.
This mini voltmeter uses a simple 2-wire connection, making it easy to integrate into Arduino projects, battery packs, portable electronics, solar systems, and automotive circuits. Lightweight and compact, it is perfect for hobbyists and professionals who need reliable voltage monitoring in tight spaces.
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- High cost performance
- Support UART / GPIO data communication interface
- Support STA / AP / STA + AP coexistence mode of operation
- Support SmartLink intelligent networking (APP)
- Support wireless upgrade firmware
- Support WPS network configuration
- Built-in onboard antenna &Temperature and humidity sensor
- RGB three-color light adjustable
- Provide rich AT command set configuration
- Free AiCloud cloud service for debugging
- 3 AA batteries / 5V adapter power supply
- Size: 61.6mm x 56.2mm;
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