{"id":1380,"date":"2014-10-17T00:00:02","date_gmt":"2014-10-17T07:00:02","guid":{"rendered":"http:\/\/192.168.3.4\/?p=1380"},"modified":"2018-01-09T06:49:51","modified_gmt":"2018-01-09T14:49:51","slug":"sensor-connectivity-with-bluetooth-le","status":"publish","type":"post","link":"https:\/\/www.cloudacm.com\/?p=1380","title":{"rendered":"Control with Bluetooth LE"},"content":{"rendered":"

Introduction – there is more than one way to get bits from point to point<\/strong><\/p>\n

Connecting devices using wired connections can be too complex or costly.\u00a0 The agility of some systems is compromised when hard wiring the components.\u00a0 Modifying becomes labor intensive.\u00a0 This is problematic for systems that are used for research or development.\u00a0 Wireless technology has advanced recently with the release of Bluetooth Low Energy.<\/p>\n

Bluetooth LE has brought about a simpler way to connect and control devices. \u00a0Earlier versions of bluetooth were notoriously difficult to pair. \u00a0BLE has made it much easier. \u00a0Also, the LE in the name stands for low energy. \u00a0The longer operation means energy conscience projects that use wireless are feasible now.<\/p>\n

Purpose – when doing it any other way is difficult<\/strong><\/p>\n

The project scope\u00a0of wiring the sensor helmet has prompted me to rethink how the sensors will interconnect with the data logging circuitry. \u00a0Although this project has been a lingering legacy, I would like to use BLE for use in a more practical way.<\/p>\n

The lighting control on my bike only controls the headlamp currently. \u00a0The helmet light still requires me to remove my hand from the handle bar grips to change modes. \u00a0This is dangerous. \u00a0Using BLE technology will allow me to control both headlights. \u00a0It would also allow me more control and tracking options. \u00a0This project is a good fit for entry into the world of BLE systems.<\/p>\n

In this segment, I will propose the use of a platform still in development called BLEduino<\/a>.\u00a0 The reasons why were that much of the work has been done by the development group.\u00a0 This will allow me to present the project without getting entagled in the gross specifics.<\/p>\n

Detail – getting it done the way its suppose to<\/strong><\/p>\n

The BLEduino website has the title, “wireless made easy”.\u00a0 It is the work and dedication of a group called Kytelabs<\/a> based out of San Juan, Puerto Rico. \u00a0Here is the reason they live up to the title, documentation. \u00a0They have provided a clean starting point for information here<\/a>. \u00a0It’s for this reason I’ve decided to use it as a development platform, even though the hardware is currently unavailable.<\/p>\n

\"BLEduino\"<\/a><\/p>\n

In this example we will want to control the headlight on a helmet using the push button on the handlebars. \u00a0This will require that we use 2 BLEduino devices and a smart phone, which will be an iPhone in this example. \u00a0The really interesting aspect of the BLEduino, is how the communications is setup. \u00a0The iPhone will be acting as a communications hub between the 2 BLEduino devices. \u00a0Here’s how each of these three components will operate.<\/p>\n

The bike BLEduino will be hardwired to the handlebar push button and the bike Dinotte headlight. \u00a0Locating it\u00a0with the battery pack, in the rear cargo bag will protect it from the elements. \u00a0It will then relay the push button state to the bike’s Dinotte 400L PLUS headlight<\/a>. \u00a0Operating the\u00a0Dinotte headlight is specific on how the button is pressed. \u00a0This is predefined by Dinotte manufacturing. \u00a0Here is an overview of the operation:<\/p>\n