Introduction
Bluetooth (Wikipedia) is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs).
evive has dedicated Bluetooth (HC05) headers, which just requires you to connect the HC05 Bluetooth module.
HC05 Bluetooth Module
The HC-05 module is an easy-to-use Bluetooth SPP (Serial Port Protocol) module, designed for transparent wireless serial connection setup. Serial port Bluetooth module is fully qualified Bluetooth V2.0+EDR (Enhanced Data Rate) 3Mbps Modulation with a complete 2.4GHz radio transceiver and baseband.
HM10 Module
The HM-10 is a readily available Bluetooth 4.0 module based on the Texas Instruments CC2540 or CC2541 Bluetooth low energy (BLE) System on Chip (SoC).
- The HM-10 is rated to operate at a supply voltage of 2.0 to 3.7 volts, and its I/O are 3.3V tolerant!
- HM-10, 11 and 12 all use TI’s BLE4.0 CC2540 chip.
- To put the device in sleep mode: send AT+SLEEP. To wake up from sleep mode, you can send a long string (>80 characters).
Programming in Arduino IDE
Serial Port 3 of evive is directly connected to the serial ports of Bluetooth. All the data transmission hence happens through serial port 3.
