AT-09 CC2541 Serial Wireless Bluetooth Module
| +25 5 % $3.73 |
| +100 8 % $3.63 |
| +300 10 % $3.54 |
| +500 12 % $3.44 |
| +1000 15 % $3.34 |
Description
bluetooth 4.0 module Serial port extraction bluetooth BLE CC2540 CC2541. The bluetooth module has a backplane, and the HM-10 module is used on this module. 5V power supply or 3.3V power supply. The serial port level is the same as the supply voltage. Built-in level shift function.
Features
Input voltage: 3.3V / 5V
If a 5.0V MCU is used to communicate with the bluetooth module, the 5.0V power port will be powered and the logic RX TX level will be 5V.
When a 3.3V MCU is used to communicate with the bluetooth module, the 3.3V power port is powered and the RX TX logic level is 3.3 volts.
Pin:
RX, the serial port receiving end of the bluetooth module is connected to the TXD of the MCU.
TX, the serial port transmitter of the Bluetooth module is connected to the RXD of the MCU.
GND, ground terminal negative
3.3V, 3.3V power supply on the power supply
5V, power supply 5V power supply