After trying out different components, I finally decided to look on EPS8266 as the main platform of implementing my IoT use cases. In doing so, I decided to work with Wemos chips, since they are pretty and provide the functionality I need at very low cost. These are:

  • boxed ESP8266
  • USB mini power supply
  • shields with different functionality
  • can be ordered by aliexpress

I ordered the following modules at aliexpress:

  • Wemos D1 mini (v.2.0, 4MB) (around 2,50 USD)
  • Reed switch (e.g. this one ) (around 2 USD)

After several weeks of traveling over the oceans my parts have arrived and I began to build my solution for gas consumption measuring.

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