![]() If you don't see the deviceĪppear, try rebooting the Bluefruit EZ-link (by momentarily disconnecting and reconnecting it from the power supply). I see the Adafruit EZ-link device appear in the device list with the comforting message "Ready to pair". Now wait a moment, and "magically" without doing anything, This takes me to the new snazzy screen shown below. Now I right click on the little bluetooth logo and select "Show Bluetooth Devices" as seen in the screenshot below. On my laptop, that means first clicking on the little arrow on the lower right of the bar at the bottom of the desktop as seen in the screenshot below: Now, you need to command Windows 8 to "show bluetooth devices". The Bluefruit EZ-link should be powered and slowly flashing a red LED. In my case I am using my Arduino's 5V and GND pins to power the Bluefruit EZ-link as illustrated below. You could power the Bluetooth module from an external power supply. However, again, you do not need the Arduino at this step. This means otherīluetooth devices can detect, pair, or connect to it.įor convenience, I am using my Arduino Uno's 5V and ground pin to supply the power to the Bluefruit module as shown in the diagram below. Once power is applied to the Bluetooth module, it will flash its indicator light, indicating that the device is "discoverable". Turn on your Bluetooth module by applying 5V to the Vin pin of the Bluefruit EZ-link and ground to the GND pin. ![]() Make sure your laptop has Bluetooth turned on. You only need the Bluetooth module and laptop. You do not need the Arduino for this part. If you have already paired the two devices, then you can skip this step (Step 1). It is assumed that your laptop and your Bluetooth module are not paired. It's now time to "introduce" your Bluetooh moduled to your laptop. A simple, standard, solderless breadboard and some wire to make connections.something like this would work) and 220 Ohm resistor. With my purchase, the sensor included this resistor. You also need a 10 kOhm resistor for the DHT-22 sensor. I happend to purchase mine from Adafruit. Bluefruit EZ-Link - Bluetooth Serial Link & Arduino Programmer.Other Arduino models should also work for this example. Note 3: It is assumed that your laptop has Bluetooth capability. ![]() Note 2: I use a laptop for this example running Windows 8. In case this link doesn't work, you can download the tutorial by clicking: here.Ī very thorough introduction to the Bluefruit EZ-link can also be downloaded by clicking: here. Note 1: This example draws heavily from Adafruits's Bluetooth Temperature and Humidity Sensor Tutorial. Sensor, and this data is displayed on the laptop.Ī user will also be able to remotely turn on and off the LED from the laptop. The Arduino is used to monitor temperature and humidity via the DHT22 The Arduino is connected to a Bluetooth module, an LED, and a DHT22 sensor. This example shows how to achieve two-way communication between a laptop running Windows 8 and an Arduino via Bluetooth. Arduino Bluetooth Example Arduino Bluetooth Example Prepared by Dr.
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