Specifications

HM-BT4502 V1.0
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3 Electrical Characteristics
 Working voltage: 1.8V-3.6V
 Working storage temperature: - 40℃~125℃ (built-in BLE main IC working
range)
 Modulation mode: GFSK (Gaussian Frequency Shift Keying)
 Modulation frequency: 2402MHz-2480MHz
 Transient current of receiving data: less than 8mA@3V
 Transient current of sending data: less than 8mA@3V@0dBm
 Current in the low power mode: less than 4uA@3V
 Tx power: - 20dBm ~+8dBm
 Rx sensitivity: -97dBm
4 Module Function Description
After the module starts, it advertises automatically. The opened specific
APP on the mobile phone will scan and connect it. After successful connection,
it can be operated through BLE protocol. User-controlled MCU can
realize the communication with the mobile device through the serial port of the
module. Users can also manage and control some communication parameters
through the specific interface instruction.
User data format is defined by upper application program. Mobile devices