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--- en:tech:sensorlogger [2020/10/15 17:17] – [Features] bullar
+++ en:tech:sensorlogger [2020/10/15 17:20] – [Protocol] bullar
@@ Line 19: / Line 19: @@
 ==== Protocol ====
-If you dare to use the IT + protocol, you will find some sources (see links). The sensor will do this every 4.5 seconds
+If you dare to use the IT+ protocol, you will find some sources (see links). The sensor always send every 4.5 seconds 5 bytes. The radio frequency is fixed at 868MHz. If the sensor can also measure the humidity, the value comes with it, if not then there is a fantasy value (= 106). Each sensor has an address coding. __Caution there are sensors that use a new address after the battery has been changed.__ Several sensors can also be evaluated in parallel decoding the address.
-always 5 bytes sent. The frequency is fixed at 868MHz. If the sensor can also measure the humidity, the value comes with it, if not then there is a fantasy value (= 106). Each sensor has an address coding. __Caution there are sensors that use a new address after the battery has been changed .__ Several sensors can also be evaluated in parallel using the address.
+It should also be noted that no negative values are transmitted, as the temperature is always treated with an offset of 40 before transmission.
-It should also be noted that no negative values are transmitted, as the temperature always receives an offset of 40 before transmission.
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