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Requirements & Specifications

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Mickyleitor edited this page Oct 8, 2020 · 1 revision

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User Requirements

User can control the shutters manually via buttons.
Arduino can interface with shutter via Radio frecuency (HTR108 device), see hacking RF shutters article.
The system should move the shutters automatically according to an alarms table.
Four buttons will be used in order to accomplish with HCI compliants (Left/Up/Down/Right).

Technical Specifications

A low cost high compacted microcontroller, like Arduino Mini Pro.
A AC-DC Converter to power the microcontroller.
A LCD 16x2 I2C device.
Four mechanical buttons.
An USB-TTL converter in case an OTA update on the software is needed.

Limitations

Space limitations compacted in a 13x6x4 cm box-sized.
Power consumption by arduino, LCD, buttons and required ICs.
Logic voltage levels between LCD 5V and Arduino MiniPro 3.3V.