User's Manual

GUser Manual of HC-42 Bluetooth Serial Port Communication Module
athering information and Carrying Dreams
Website：
http://www.hc01.com
Guangzhou HC Information Technology Co., Ltd
Address: Room 608, No.19, Jiangong Road, Tianhe Science Park, Tianhe District, Guangzhou City, Guangdong Province
Technical customer service QQ: 445253184 Sales hot line: 020-8408-3341
PAGE
3
1. About the Module HC-42
1.1 Features
The HC-42 Bluetooth serial communication module is a new generation of data
transmission module based on Bluetooth Specification V5.0 BLE Bluetooth protocol.
Its radio operating frequency band is 2.4GHz ISM, and the modulation methodis
GFSK.
The module has a dimension of 26.9mm×13mm×2.0m and integrates stamp hole
packaging process. It can be embedded into application system in an easy manner.
1.2 Basic Parameters
Description Value Description Value
Model HC-42 Dimensions 26.9X13mm
Operating band 2.4G Air data rate 1Mbps/2Mbps
Operating voltage 1.8~3.6V Built-in PCB antennaAntenna interface
Operating current Refer to Table 1.3 Shutdown current 0.3μA
Communication interface UART -96dBm@1MbpsReceive sensitivity
Communication level
1.8~3.6V, consistent with
operating voltage
Operating humidity 10
％
~90
％
Transmission power
-3.5~-1.5dBm
-40Storage temperature ℃~+85℃
Reference range
40m/1Mbps（Bluetooth 5.0）
-25Operating temperature ℃~+75℃
1.3 Electrical features
Value
Remarks
Voltage
1.8V~3.6V
If button cell is used, the voltage must be above 2.5V.
Reference current
(Not include LED)
1.23mA/1.22mA
Full broadcast/full connection
75μA/65uA
Power broadcast/low power connection (operating current
varies with broadcast interval)
0.3μA
Shutdown
Note: The above-mentioned current data are obtained based on the temperature of 25
℃
, working voltage of 3.3V,
and factory default configuration. There may be errors in actual use.