The nRFdrip is very much similar to the commonly known xDrip and acts as a bridge between a Dexcom G4 CGM sensor and your Android phone. It shares the similar functionality as the xDrip/xBridge, but the nRFdrip is a project based on different hardware.
The hardware consists of two parts, a small, but powerful, 32-bit ARM M0 CPU with integrated Bluetooth 4.0 support (nRF51822) and a proprietary RF module (CC2500) that is used to receive the Dexcom G4 sensor data.
The benefits of using nRF51822 are many. It is not just very small and powerful, it gives you the freedom to control the Bluetooth protocol implementation and it is know for its extreme low power modes. The CC2500 is a simple RF receiver also know for extreme low power modes. These two combined gives you a hardware platform which is easy adaptable, low power consuming and pocket sized.
The battery typically lasts for more than 8 days on one charging!
Please visit the wiki for details of how to get started
DISCLAIMER
All information, thought, and code described here is intended for informational and educational purposes only. Use of code from github.com is without warranty or support of any kind. Each element of the system can fail at any time rendering the system unusable.
This is not a project of the Dexcom company. It is purely a DIY project.
Do not use any of the information or code to make medical decisions.