LM3914 3,7 V 18650 Batteriekapazitätsanzeige rot/geen/blau LED Display Modul
ab 3,46 €
A single pin changes the display from a moving dot to a bar graph. You can also change it to single-lamp display, that is, only one light shows to save power. Single-lamp power consumption : 4mA, all-bright: 42mA.
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