Update content:
1. Solved the issue of V1.2 not being able to connect to the computer
2. Added the MAC function of outputting the host after connecting the module to the host
3. Added the AT+ENLOG command, which allows users to turn on or mask the output status of the serial port for power on, connection, and disconnection
1、 Product Introduction and Applications
JDY-31 Bluetooth is designed based on Bluetooth 3.0 SPP, which can support data transmission for Windows, Linux, and Android. It operates in the 2.4GHz frequency band, has a modulation method of GFSK, a maximum transmission power of 8dB, and a maximum transmission distance of 30 meters. It supports users to modify device names, baud rates, and other instructions through AT commands, making it convenient, fast, and flexible to use.
2、 Product application
JDY-31 is a classic Bluetooth protocol that can communicate with computers (desktop, laptop) and mobile phones (Android) that support Bluetooth. Can be applied to
Windows computer Bluetooth serial port transparent transmission
◆ Android Bluetooth serial port transparent transmission
◆ Smart home control
◆ Automobile ODB testing equipment
◆ Bluetooth toys
◆ Shared mobile power supply and shared weight scale
◆ Medical instruments
model
JDY-31
Working frequency band
2.4GHZ
communication interface
UART
working voltage
3.6-6V (recommended 5V)
working temperature
-40 ℃ -80 ℃
antenna
Built in PCB antenna
transmission distance
30 meters
Master-slave support
Slave machine
Module size
19.6 * 14.94 * 1.8 mm (length, width, height)
Bluetooth version
Bluetooth 3.0 SPP
STM welding temperature
<260 ℃
Unconnected working current
4.7mA
Current after BLE connection
7.3mA
Transmission power
8dB (maximum)
Receiving sensitivity
-97dbm
SPP maximum throughput
16K bytes/s (Android, Windows)
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Model: JDY-31
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Bluetooth-compatible version: Bluetooth-compatible 3.0 SPP
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Working frequency band: 2. 4GHZ
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Communication interface: UART
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STM connection temperature: <260 degree
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Operating voltage: 1.8-3.6V (3.3v recommended)
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Operating current not connected: 4. 7mA
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Working temperature: -40~80 degree
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Current after BLE connection: 7.3mA
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Antenna: Built-in PCB antenna
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Transmit power: 8db (Max)
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High transmission distance: 30 meters
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Receive sensitivity: -97dbm
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Master-slave support: slave
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SPP maximum throughput: 16K bytes/s (for android, windows)
JDY-31 support patch and solder pin header
Needle pin application: The pin header specification is standard 2.54 pitch pin header, just need to weld 5 pin holes on the module.
SMD application: Generally, only four pins of VCC, GND, RXD and TXD need to be connected. If you need to disconnect actively in the connection state, send AT+DISC in the connection state.