Product description: Bluetooth module BLE HM-BT4502 - Seeedstudio 113990814
Bluetooth BLEcommunication moduleinstandard 5.0, based on HM-BT4502chip. When connected to a microcontroller, it isable to communicate and send data to devices such as smartphonesand tablets.It communicates throughUARTinterface,supports AT commands. Supports commands to reset the software and obtain the MAC address. Moreover, with AT commands you can set the connection interval and baud rate. It is poweredfrom 1.8 V to 3.6 V.
Bluetooth module HM-BT4502.
Bluetooth module outputs
The module communicates through the UART serial interface. It is powered from 1.8 V to 3.6 V.
| Name | Description |
|---|---|
| VDD | Supply voltage from 1.8 V to 3.6 V. |
| GND | The weight of the system. |
| WAKEUP | Pin wake up. |
| PDN | Pin power control. |
| RDX | Pin of the UART receiver. |
| TDX | UART transmitter pin. |
| INT | External interruption. |
Main features of the Bluetooth module
- Controlled via serial interface, full-duplex bidirectional communication, minimum speed is 9600 b/s.
- Default connection interval is 30 ms.
- Supports 2M transmission symbol and 244 bytes packets.
- Supports AT commands for basic settings.
Bluetooth module specification HM-BT4502
- Operating voltage: 1.8 V to 3.6 V
- Operating temperature: -40°C to 125°C
- Modulation mode: GFSK (Gaussian Frequency Shift Keying)
- Modulation frequency: 2402 MHz to 2480 MHz
- Current consumption during data reception: less than 8 mA / 3 V
- Power consumption during data transmission: below 4 uA / 3 V
- Tx power: from -20 dBm to 8 dBm
- Sensitivity Rx: -97 dBm
- Dimensions: 17 x 12 mm
Useful links |
