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en:tech:sensorlogger [2020/10/15 17:10] – created bullar | en:tech:sensorlogger [2020/10/15 17:20] – [Protocol] bullar | ||
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==== Motivation ==== | ==== Motivation ==== | ||
- | {{: tech: sensorlogger_top.jpg? | + | {{: tech: sensorlogger_top.jpg? |
- | {{: tech: sensorlogger_bottom.jpg? | + | {{: tech: sensorlogger_bottom.jpg? |
- | The idea for the following circuit actually arose from the consideration that in addition to recording the consumption of the domestic heating system (here gas), it would also be very interesting to also record the outside and inside temperature. After all, the colder the heat, the more it is heated. You may already have a temperature measurement in use at home in the form of a weather station. So why not ' | + | The idea for the following circuit actually arose from the consideration that in addition to recording the consumption of the domestic heating system (here gas), it would also be very interesting to also record the outside and inside temperature. After all, the colder the weather, the more Ito heat. You may already have a temperature measurement |
Incidentally, | Incidentally, | ||
==== Features ==== | ==== Features ==== | ||
- | The device should therefore receive and understand the IT + sensor protocol and deliver the measured values recorded in this way to the smart meter via Ethernet on the intranet or internet. In order to be able to record independently of the network, a microSD interface for data storage would be a nice gimmick. Summarized again: | + | The device should therefore receive and understand the IT+ sensor protocol and deliver the measured values recorded in this way to the smart meter via Ethernet on the intranet or internet. In order to be able to record independently of a network, a microSD interface for data storage would be a nice gimmick. Summarized again: |
- | * Reception | + | * Receive |
* Saving the data on microSD card | * Saving the data on microSD card | ||
* Sending the measurement data via Ethernet | * Sending the measurement data via Ethernet | ||
* small standard housing | * small standard housing | ||
* external standard power supply | * external standard power supply | ||
- | * And as always standard | + | * And as always standard and inexpensive |
==== Protocol ==== | ==== Protocol ==== | ||
- | If you dare to use the IT + protocol, you will find some sources (see links). The sensor | + | If you dare to use the IT+ protocol, you will find some sources (see links). The sensor |
- | always | + | It should also be noted that no negative values are transmitted, |
- | It should also be noted that no negative values are transmitted, | + | |
<code C> | <code C> |