OLED Timer: Wemos D1 Mini & Buzzer Countdown Project
OLED Timer: Wemos D1 Mini & Buzzer Countdown Project In this blog post, I’ll walk you through building a simple minimalistic countdown timer using a Wemos D1 Mini, an OLED display, four buttons, a buzzer, and a BC548 transistor. The project can be used as a kitchen timer, study timer, or any other timed task. […]
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