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Crazy Clock v0.8.1

2 years ago 316
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Description

2 layer board of 0.85x0.48 inches (21.62x12.09 mm). Ticks randomly, but keeps “perfect” time. A single AA battery will run it for 18 months-ish. Connect ‘clock’ terminals to a lavet stepper motor style clock movement. NOTE: This version has incorrect crystal loading capacitance. It runs ~120 ppm fast. There is a more recent design that fixes this. Firmware. BOM: R1 - 10k R2 & R3 - 100R C1 - 10 µF C2 & C3 - 22 µF C4 - 0.1 µF D1 & D2 - BAT54A L1 - 47 µH IC1 - ATTiny45 IC2 - NCP1402 3.3V Y1 - 32.768 kHz, 10 ppm

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Crazy Clock v0.8.1

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你现在访问的是EasyEDA海外版,使用建立访问速度更快的国内版 https://lceda.cn(需要重新注册)
如果需要转移工程请在个人中心 - 工程 - 工程高级设置 - 下载工程,下载后在https://lceda.cn/editor 打开保存即可。
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