https://github.com/k-cermak/arduino-power-checker

✔️✔️✔️ Arduino for controlling the power supply condition in the electrical network.
https://github.com/k-cermak/arduino-power-checker

arduino datacenter electrical-engineering powersupply server

Last synced: 19 days ago
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✔️✔️✔️ Arduino for controlling the power supply condition in the electrical network.

• Host: GitHub
• URL: https://github.com/k-cermak/arduino-power-checker
• Owner: K-cermak
• License: other
• Created: 2024-02-04T20:48:57.000Z (11 months ago)
• Default Branch: main
• Last Pushed: 2024-07-13T23:03:42.000Z (6 months ago)
• Last Synced: 2024-07-14T00:19:23.783Z (6 months ago)
• Topics: arduino, datacenter, electrical-engineering, powersupply, server
• Language: C++
• Homepage: https://karlosoft.com
• Size: 3.79 MB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

        
# Power Checker

By Karel Cermak | [Karlosoft](https://karlosoft.com).

## A simple arduino project to monitor the functionality of the power grid and the backup power supply.



---

## Features

- Checks the functionality of the power system and the power supply of the backup power supply via USB.

- It controls the control diodes responding to the current status.

- Controls a buzzer that will be triggered if the backup power supply is disconnected.

- Generate simple JSON statistics via the integrated web server.

- DHT temperature sensor and buzzer/ceiling light mute button.




## States of the system

- **Everything ok (1)**

    - Blue light slowly blinking

    - Orange light off

    - Red light off

- **DHT temperature sensor error (2)**

    - Blue light blinking fast

    - Orange light slowly blinking

    - Red light off

- **Ethernet error (3)**

    - Blue light blinking fast

    - Orange light off

    - Red light slowly blinking

- **Main grid off (4)**

    - Blue light off

    - Orange light blinking fast

    - Red light off

    - Ceiling light turned off

- **Backup power supply off (5)**

    - Blue light off

    - Orange light off

    - Red light blinking fast

    - Ceiling light turned on

    - Buzzer activated




## How to stop the buzzer and the ceiling light?

- **Hold button for 500 ms**

    - Deactivate the buzzer for 30 minutes

- **Hold button for 5000 ms**

    - Deactivate the buzzer and ceiling light for 12 hours




## Problem with ethernet shields W5100 

- If it is necessary to restart the arduino via the restart button to get the web server working, this might help:

    - Put a 100 nF capacitor between the RESET and GND pins (a larger capacitor should also work).

    - Place 100 ohm resistors between ethernet pins 1 - 2 and 3 - 6 (not tested).