s5uishida / cc2650-driver

a java library for using TI SensorTag CC2650 by bluez-dbus with BlueZ

cc2650-driver

cc2650-driver is a java library for using TI SensorTag CC2650 by bluez-dbus with BlueZ version 5.50 on linux OS. I releases this in the form of the Eclipse plug-in project. You need Java 8 or higher.

CC2650 is powered by a button battery CR2032. From CC2650, cc2650-driver get battery level and the following sensor information.

• System information

  • Firmware version
  • Battery level
    The battery level is available for firmware 1.30 or higher.

• Sensors

  • IR Temperature (Object / Ambience)
  • Relative humidity
  • Barometric pressure
  • Optical
  • Movement (Gyroscope / Accelerometer / Magnetometer)

There are two ways to acquire data from various sensors of CC2650.

• Direct reading
• Notification
  The data acquisition interval that can be specified by notification is 2550 (msec) at maximum.

In addition, for Movement, when CC2650 detects a shake using Wake-On-Motion function, it may notify Movement data at a time interval specified by notification for 10 seconds.

I do not know how long CC2650 battery is effective. In addition, it seems that the sensors of Movement has relatively large power consumption. When the battery level reached approximately 60%, empirically CC2650 could not work properly.

I have confirmed that it works in Raspberry Pi 3B (Raspbian Buster Lite OS (2019-07-10)).

Install Raspbian Buster Lite OS (2019-07-10)

The reason for using this version is that it is the latest as of July 2019 and BlueZ 5.50 is included from the beginning.

Install jdk8 on Raspberry Pi 3B

For example, the installation of OpenJDK 8 is shown below.

# apt-get update
# apt-get install openjdk-8-jdk

Install git

If git is not included, please install it.

# apt-get install git

Use this with the following bundles

• SLF4J 1.7.26
• Apache Commons Lang 3.9
• dbus-java-osgi 3.2.1-SNAPSHOT
• bluez-dbus-osgi 0.1.2-SNAPSHOT

I would like to thank the authors of these very useful codes, and all the contributors.

How to use

The following sample codes included in CC2650Driver.java will be helpful.

• CC2650Driver#testRead()
• CC2650Driver#testNotification()
• CC2650Driver#testWakeOnMotion()