In this example, an Arduino Uno is connected to Adafruit's Bluefruit LE UART Friend, along with a temperature and humidity sensor. The Arduino reads the temperature and humidity values from the sensor ...

I use Arduino UNO card and a bluetooth module HC-05 (not needed if you don't want to change expressions with your phone). I use two 8x8 matrix for the nose, two 8x16 the eyes and four 8x16 for the ...

Supporting Bluetooth 4.0 a serial protocol that allows the LBM313 Bluetooth Low Energy module and Atmega328p to communicate both messages from the client which can be PC, Mac, iOS or Android to ...

HC-05 Bluetooth Module. HC05 is basically a Bluetooth module which supports Serial Port Protocol (SPP) and is popularly used in many wireless applications. HC05 can be used to switch between master ...

Adafruit has this week announced the availability of a tiny Bluetooth Low Energy Module in the form of the nRF51822 which measures just 18.0mm x 10.0mm Skip to main content Skip to secondary menu ...

The Bluetooth module wants 3.3v logic levels so that is taken into account. The image above shows a buffer chip doing the conversion, but the Fritzing schematic on the post uses a voltage divider.

Different port pins of Arduino are used to drive the 16×2 LCD as shown in the circuit. The message typed by the user on the Android based smartphone is received by the Bluetooth module and transmitted ...