Build a Holiday Mailbox Alarm – Another Geek Moment from DigiKey

Santa’s mail dilemma inspires Kevin, the elf, to build a mailbox sensor with a Honeywell Limitless switch (part WLS1A11AQRS1). The switches are IP67 rated making them ideal for cold temperatures.

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Drive an electronic paper display with the EFM32

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Induction cooktop reference design from Microchip