User's Manual

The user manual of WIFI、BLE module
1. The product description
The user can achieve wireless connection to WIFI net and BLE, through this module
2. Basic parameters
3. The display method of Model approved code
In the factory，the model approve code is lasered on the shielding case.
4. FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15
of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio frequency energy and if not installed
and used in accordance with the instructions may cause harmful interference to radio communications. However
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of the following measures：

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1)This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired operation.
FCC ID:
Feature Description
Feature Description
Model
MHCWB6G-B& MHCWB6G-IB
Product Name
2.4GHz WIFI+Bluetooth dual-mode module
Major Chipset
ESP32-C3
WLAN Standard
IEEE 802.11b/g/n
BT Standard
V5.0 BLE
WLAN Frequency Range
2.4GHz~2.4835GHz
BT Frequency Range
2402MHz~2480MHz
Spread Spectrum
IEEE 802.11b: DSSS (Direct Sequence Spread Spectrum)
IEEE802.11g/n: OFDM (Orthogonal Frequency Division Multiplexing)
Modulation Method
DBPSK/DQPSK/CCK(DSSS)；BPSK/QPSK/16QAM/64QAM(OFDM)
Data Transfer Rate
11b:1,2,5.5, 11Mbps
11g: 6,9,12,18,24,36,48,54Mbps
11n:HT20MCS0~HT20MCS7
HT40MCS0~HT40MCS7
Antenna Reference
MHCWB6G-B:WIFI/BLE Internal Printed ANT;
MHCWB6G-IB:WIFI/BLE external ANT
Interface
UART
Supply Voltage
3.3V±0.3V
Dimension
MHCWB6G-B:18（mm）*20（mm）*2.5（mm）
MHCWB6G-IB: 18（mm）*14.3（mm）*2.5（mm）
Operating Temperature
-40°C to 85°C
Storage Temperature
-40°C to 85°C