This application is designed to check your Android device with attached 1-wire-products from Maxim Integrated (Dallas Semiconductor):
1-Wire Digital Thermometer DS18B20 or DS18S20 (=DS1820)
The Android device must be able to run in USB-Host-Mode. Be aware that not all devices sold with Host-Mode really support all necessary functionality.
If you do not have these devices, this app is useless to you.
Attach the USB-to-1-Wire-Adapter to your device and the temperature sensor to your adapter. "parasite power modus" (2 wires) and "external power modus" (3 wires) are possible. Then start the app. If anything is working properly you will see the unique IDs of the Adapter and Sensor. The current temperature reading will be displayed for a short time.
Are you interested in more? Let us know, please. Tell us about your experiences, wishes and ideas regarding the 1-Wire Bus System at Android Devices.
Now temperature sensors DS18B20 and DS18S20 (= DS1820) can be used.
The sensors can be wired in "parasite powered modus" (2 lines), or in "external powered modus" (3 lines).