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Category: Ersa

Consuming REST on Android with Retrofit, ViewModel and LiveData

Consuming REST on Android with Retrofit, ViewModel and LiveData

March 11, 2018March 16, 2023 Serge Helfrich
Introduction The first functionality we want to implement in the Ersa Android client is some basic dashboarding. We’ll display the latest temperature and humidity readings by origin (sensor node... Read More
Dew Point Calculation in Java

Dew Point Calculation in Java

March 4, 2018March 3, 2024 Serge Helfrich
Introduction The core functionality of the Ersa library is all about calculating the dew point from temperature and humidity data. The dew point is used to assess environmental risks, like mold and co... Read More
A REST API with Spring Boot

A REST API with Spring Boot

February 20, 2018March 4, 2018 Serge Helfrich
Introduction The database structure needed for collecting data in our Ersa software is very uncomplicated. At this point we don’t need any authentication mechanism — we simply need to subm... Read More
Android Gauge View

Android Gauge View

January 16, 2017March 10, 2018 Serge Helfrich
With all these Raspberry Pi and Arduino projects in mind I am developing this gauge view for IoT apps on Android. There are some alternatives around, but I’m not quite satisfied with them as the... Read More

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