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STM8S003 Timer

This is a timer for watering plant and supplyment light in the winter with LED. There is a simple menu system (UI.C,UI.H) for setting preferences that may be of interest.

Schematic/layout: Eagle CAD. Firmware compiled using "Free" Cosmic C for the STM8 series.

Project page:

https://hw-by-design.blogspot.com/2018/10/stm8-timer.html

Licensing:

Firmware: Unless otherwise stated are in GPL3.0. stm8s.h is licensed under "MCD-ST Liberty SW License Agreement V2"

Schematic: Creative Commons 4.0 Attribution 4.0 International

PCB & Layout: Creative Commons 4.0 Attribution 4.0 International

See https://creativecommons.org/licenses/by/4.0/

Change log

  • back port from LED clock project: NCO for better trimming, Daylight Saving Time, Date and leap year

  • Mar 18 2020: Servo support + fixing alarm remainder time after time adjustment

  • Mar 4 2021: V2 hardware/firmware release. V1 will no longer be maintained

Hardware changes:

  • Supercap backup power, switcher module

  • Different connector for LED/sensor + Servo connector

  • LCD, buttons I/O changes. LCD backlight on/off control by ambient light

  • I2C connector

  • expansion connector for nRF24 (no firmware support)

See https://hw-by-design.blogspot.com/2020/03/stm8-timer-servo-controlled-water-valve.html

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STM8S003 Timer for watering plant and supplement lighting

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