Features : Very small and lightweight voltmeter module. Very handy and easy to use. Blue LED display. It requires an extra power supply of 0V to 100V Best operates in the working voltage range of 5V to 24V 100% Brand new and high quality. No direct exposure to sunlight product stability, high accuracy
Features: It communicates through SPI protocol and hence does not require more pins The module also has a readily available library for Arduino which makes it ideal even for novice programmers Can be easily interfaced with Arduino Supports decent graphics of bitmap images Available in Green and Blue Backlight