HM 19 Bluetooth Module

Product Parameters:HM 19 Bluetooth Module

• BT Version: Bluetooth Specification V4.2 BLE
• Send and receive no bytes limit.
• Working frequency: 2.4GHz ISM band
• Modulation method: GFSK(Gaussian Frequency Shift Keying)
• RF Power: -18dbm ~ 3dbm, can be modify through AT Command AT+POWE.
• Speed: Asynchronous: 1-8K Bytes
• Synchronous: 1-8K Bytes
• Security: Authentication and encryption
• Service: Central & Peripheral
• FFE0 is service UUID (could modify by AT+UUID command)
• FFE1 is Char1 UUID (could modify by AT+CHAR command)
• Default property : Read, Write Without Response, Notify Property could modify by AT+RESP command
• FFE2 is Char2 UUID (Could open by AT+FFE2 command)
• If you use AT+CHAR command to change Char1 value, then Char2 value will be Char1 value + 1.
• Power: +1.9~5.5 VDC 50mA
• Long range: Open space have 100 Meters range
• Power: Low Power Mode 50uA~500uA, Standby mode 6mA, Active mode 10mA.
• Working temperature:–40 ~ +85 Centigrade
• Size: HM-18 27mm * 13mm * 2.2 mm
• Size: HM-19 18mm * 13mm * 2.2mm