Keyestudio Bluetooth 4.0 Shield Expansion Shield Board for Arduino UNO R3
The Keyestudio Bluetooth 4.0 shield is the integration of a sensor shield and a HM-10 Bluetooth-4.0, to be fully compatible with UNO R3. It's very easy to stack onto the UNO R3 board. The shield has extended all the digital and analog pins out to 3PIN headers, so it's simple to connect sensors using 3PIN wire. The HM-10 Bluetooth-4.0 is used for Bluetooth communication. The slide switch is used to control the power supply for Bluetooth. Onboard is set with jumper cap, default by communicating the Bluetooth module to UNO R3 serial port. If you connect two jumpers, you'll need to set the virtual serial port for UNO R3 board, that is D2 to TX, D3 to RX.
Extends 14 digital pins into 3PIN
Extends 6 analog pins into 3PIN
Comes with a reset button
Comes with a slide switch to control the Bluetooth communication
Comes with jumper interface to control the serial communication pin (default built-in serial port, can select the analog serial port, TX to D2, RX to D3.)
Comes with a Bluetooth 4.0 module
Dimensions: 54mm x 48mm x 23mm
Bluetooth 4.0 Specifications
Terminal block spacing: 3.5mm
Bluetooth protocol: Bluetooth Specification V4.0 BLE
No byte limit in serial port Transceiving
Realize 100m ultra-distance communication with iphone4s in open field.
USB protocol: USB V2.0
Working frequency: 2.4GHz ISM band
Modulation method: GFSK(Gaussian Frequency Shift Keying)
Transmission power: -23dbm, -6dbm, 0dbm, 6dbm, can be modified by AT command.
Supporting service: Central & Peripheral UUID FFE0, FFE1
Power consumption: Auto sleep mode, stand by current 400uA to800uA, 8.5mA during the transmission.
Power supply: 5V DC
Working temperature: -5°C to +65°C
The keyestudio Bluetooth 4.0 expansion board is stacked on the keyestudio UNO R3 control board. After the power is turned on, burn the procedure and dial the toggle switch to power on HM-10 Bluetooth - 4.0.
Open APP HC-COM, click search device, select the device, device is connected; the LED on the Bluetooth module is on. Enter "a" in HC-COM, click send, Bluetooth APP will display keyestudio. Every time HC-COM sends an "a", the Pin13 LED on the main board blinks once.