fpga-computer / timer

STM8S003 Timer for watering plant and supplement lighting

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