swechencheng / nordic-ds18b20

Example code for DS18B20 on nRF52832/nRF52840 (bitbanged)

Nordic-DS18B20

Example code for the DS18B20 Digital Thermometer on nRF52840 and nRF52832.

Project based on SDK 15.0

Setup

Hardware

• nRF52832-DK or nRF52840-DK
• DS18B20 sensor
• Powering DS18B20 with external VCC (non-parasite mode)
• Only one sensor data wire on one PIN (bus)
• 4.7K Ohm pull-up resistor to VCC (3.3V-5.5V)
• Breadboard and jumper wires as needed.

Software

• Download SDK 15
• Download Segger Embedded Studio

Clone or download this repo, and make sure that the ds18b20 folder is placed the folder SDK15_folder_path\examples\peripheral

Expected output from terminal

Troubleshooting

• No numbers being printed in the terminal?

Make sure that you have enabled support for printing floating-point numbers in SES IDE