HC-05 Bluetooth Wireless Module
Model: YZQ-S013
Technical parameters:
1.PCB size: 37.3mm (length) * 15.5mm (width)
2.Weight: 3.5g
3.Input voltage: 3.6V–6V
VCC: Connect to the positive pole of the power supply
GND: Connect to the negative pole of the power supply
RXD: Receiver, the Bluetooth module receives data from other devices; normally connect to the transmitter TXD of other devices
TXD: Transmitter, the Bluetooth module sends data to other devices; normally connect to the receiver RXD of other devices
EN: Enable terminal, connect to 3.3V when entering AT mode
Model: YZQ-S013
Technical parameters:
1.PCB size: 37.3mm (length) * 15.5mm (width)
2.Weight: 3.5g
3.Input voltage: 3.6V–6V
4.6 pins: EN/VCC/GND/RXD/TXD/STATE (Bluetooth status pin, output low level when not connected, output high level after connection)
5.With connection status indicator, LED flashes quickly to indicate no Bluetooth connection; LED flashes slowly to indicate entering AT command mode
6.Power supply reverse connection protection, the module will not work if reverse connection is made
7.Master and slave modes can be switched via AT commands
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