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Attiny85 simple timer

Overview

Simple Attiny85 timer: cheap cost, simple operation, few components, easy to weld

OLED screen size 0.91, powered by CR2032 button battery

The minimum timer is 2 minutes and the maximum timer is 40 minutes. Once the time is up, the buzzer will sound every second, which is very interesting.

Attiny85 is programmed using Arduino IDE software, and Arduino uno is used as the ISP programming board.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-12 11:36:39

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