The HC-08 Bluetooth 4.0BLE Serial Port Module uses BLE (Bluetooth Low Energy) protocol. The main difference between Bluetooth and BLE is power consumption. Bluetooth consumes more power than BLE but can handle a lot of data. BLE is more appropriate for quickly transferring small amounts of data between nearby devices. BLE is less power-hungry, so the devices running this protocol can operate for years with a small battery; perfect for IoT! HC-08 is a Bluetooth 4.0 low energy module, it can easily connect to iOS 5 and Android 4.3 or above by using a serial terminal app. You can use the Bluetooth communication up to 87 yards (80 meters) with this Bluetooth BLE module. It also runs on a 2.4GHz frequency. The chipset is CC2540 with 256K Byte space. You can change the role and serial baud rate and it supports AT commands for configuration. HC-08 is a relatively new module made by an experienced Bluetooth design and manufacturing supplier in China. Its mass produced and therefore well-tested. It can be incorporated into products or projects without worrying about being able to get it again. It’s already widely used in many Bluetooth projects. Note: The product dimensions may have ±2% error. Color also may vary due to light effect. How to use? Click Here. Specifications Frequency: 2.4GHz ISM. Protocol: BLE 4.0. Max transmitting power: max. 4dBm. Modulation System: GFSK. Serial Baud Rate: 1200 to 115200 bps. Reference Distance: 80 meters. Speed: 1Mbps (Max). Power supply: 2.0 – 3.6 V. Sleep Mode Current: 0.4uA (MODE 2). Communication Port: UART 3.3V TTL. Working temperature: -20 ~ 75°C.
