Tag Archives: DS18B20

PROBLEM DESCRIPTION I’m using the DS18S20 and DS18B20 in a energy control system. The 1-wire temperature sensors is connected on the same 1-wire bus. Just these two sensors are connected to the bus. The 1-wire is connected to a microcontroller i/o port. To pull down the 1-wire bus, an open drain pulldown transistor and a 1k resistor to +5V are …

In this tutorial, we will implement a simple temperature logger on the Raspberry Pi 3 and connect four DS18B20 temperature sensors to it. The temperature measurements will be stored in a database along with a time stamp. We have selected InfluxDB as the database engine as this is a time-series database and integrates very easy to Grafana. Grafana will retrieve …