https://github.com/anseljh/mdd
Tiny smart device to deter rodents with an ultraviolet LED that turns on at night
https://github.com/anseljh/mdd
circuitpython esp32
Last synced: 4 months ago
JSON representation
Tiny smart device to deter rodents with an ultraviolet LED that turns on at night
- Host: GitHub
- URL: https://github.com/anseljh/mdd
- Owner: anseljh
- Created: 2025-09-01T01:22:49.000Z (5 months ago)
- Default Branch: main
- Last Pushed: 2025-09-14T08:43:07.000Z (4 months ago)
- Last Synced: 2025-09-14T09:06:11.791Z (4 months ago)
- Topics: circuitpython, esp32
- Language: Python
- Homepage:
- Size: 200 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Mouse Deterrent Device
A mouse decided it liked the space under the hood of my car. Supposedly, they don't like ultraviolet light, so I designed a small device that could go in there to deter critters from settling in at night.
## What it does
- Connects to home wifi
- Gets the current time via NTP
- Gets sunrise and sunset times from the [SunriseSunset.io](https://sunrisesunset.io/) API
- If it's daytime, goes into battery-saving deep sleep until sunset
- If it's night, light the UV LED, and go into a lighter sleep mode until sunrise to save some battery
## Hardware
- [Seeed Studio XIAO ESP32-C6](https://www.seeedstudio.com/Seeed-Studio-XIAO-ESP32C6-p-5884.html)
- A battery (soldered to pads on Xiao) or USB battery pack
- Ultraviolet LED (like [this one](https://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10001&langId=-1&storeId=10001&productId=2274823))
- Resistor appropriate for your UV LED (4.7 Ω for the one linked above)
## Circuit schematics and PCB
PCB design files for [KiCad](https://www.kicad.org/) are in `PCB` folder.
(This render shows a slightly different Xiao board, not the ESP32-C6 version.)
[Mouse image](https://thenounproject.com/icon/mouse-7950563/) by Kim Sun Young from [Noun Project](https://thenounproject.com/browse/icons/term/mouse/) ([CC BY 3.0](https://creativecommons.org/licenses/by/3.0/)).
## Software
- [CircuitPython](https://circuitpython.org/)
- [adafruit_connection_manager](https://docs.circuitpython.org/projects/connectionmanager/en/latest/index.html)
- [adafruit_ntp](https://docs.circuitpython.org/projects/ntp/en/latest/index.html)
- [adafruit_requests](https://docs.circuitpython.org/projects/requests/en/latest/index.html)
- Powered by [SunriseSunset.io](https://sunrisesunset.io/)'s sunrise/sunset API.