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Simple arduino update service

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This application serves my arduino devices with updates when there is a new version available.

  • It can distinguish between devices by devices based on the name parameter.
  • It can hold only one version of the arduino binary
  • Its compatible with the ESP8266httpUpdate library
  • It does not facilitaty any kind of authenticathion from the client side.

Check the tests for learn how it works

Noszlop Greenhouse project

Various automations for a greenhouse at my fathers place in a rural village called Noszlop. This project is my entry drug for IT, I working on this since 2014.

Background

My father works a lot in his garden, he growns his own tomatoes and paprikas. He starts the process with germinateion. He puts the seeds in soil, and put those in a "reverse refigerator": Once was a refigerator, now it has a 100W lightbulb in it as a heatsource, and its job is to provide a nice 28 C° temperature and humid air for the germination. After that, the young seedlings (around 2000 pieces) moves to the greenhouse. This usually happens in the early spring when it is a chance for night freezes, that would kill those poor seedlings. So before I started this porject father barely slept for about two weeks, checking the temperature hourly at nights.

I thought this shouldn't be that hard to automate, father should get enough sleep, so I started to learn building sensors, switching relays, collectiong and processing data. And code.

The requirements

  • The seedlings can't bee freeze to death.
  • If some part of the system is fails, the others should work normally
  • If some part is failing, there should be an alarm
  • Father needs to see the actual data in the house (~100m away from the greenhouse)
  • The system should be maintained remotely (as I not live in there anymore, and father won't be able to build and upload new firmware to the devices)

The solution

Built around the esp8266 board and the arduino framework, there is 3 thermostat with different settings:

  • One for the "reverse refigerator" for the germination
  • Two in the greenhouse, one for the whole greenhouse, and the other one is for a smaller portion of it. Built around the esp8266 and a simple led display and a speaker, the dispay and alarm unit in the house A google spreadsheet which serves as a backend, holds the data and the configuration values A python flask api server which manages the updates.

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