HM-12 4.0 Dual mode bluetooth module , BLE SPP LE serial port , V4.0 EDR + BLE dual mode
HM-12 is Bluetooth V4.0 BLE version. Use TI Chip.
BT Version: Bluetooth Specification V4.0 EDR and BLE
- Send and receive maximum byte count is 90 bytes.
- Working frequency: 2.4GHz ISM band
- Modulation method: GFSK(Gaussian Frequency Shift Keying)
- Speed: SPP: 50% serial port rate
- BLE: 50% serial port rate
- Security: Authentication and encryption
- Service: L2CAP , SDP, RFCOMM, SPP, ATT, GATT, LE Service: 0xFFE0, Char: 0xFFE1
- Power: +3.3VDC 50mA
- Long range: Open space have 100 Meters with BLE
- Power: In sleep mode 10-17mA, SPP mode 13mA, BLE mode 9.5mA
- Working temperature:-5 ~ +65 Centigrade
- Size:26.9mm x 13mm x 2.2 mm
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