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Serial WiFi module M20
HLK-M20 WiFi module integrates DBB/PMIC/RF/PA/Memory/LNA/Balun and supports 2.4GHz IEEE 802.11b/g/n.
The module is quite excellent in power consumption control. Rx power consumption is 1/2 of the same type of low-power WiFi modules on the market, Tx power consumption is only 70% of theirs, and power consumption in deep sleep mode is only 8uA, DTIM1 power consumption is 0.9mA.
Functional structure diagram
M20 module + function base board + USB cable*1 (power supply)
1. The figure is the default definition, and the multiplexing function is not listed.
2. The unused functions of each foot should be left unconnected, do not pull up or down at will, so as not to cause the module to start abnormally.
Pin type definition:
I/O → Digital input/output;
I → Digital input
O → Digital output
Product HLK-M20 supports serial port to WiFi STA, serial port to WiFi AP mode
·In this mode (STA mode), through settings, the data of COM1 and WiFi are converted mutually.
·WiFi security supports the current mainstream encryption methods.
·In this mode (AP mode), through settings, the data of COM1 and WiFi are converted mutually.
·WiFi devices can connect to the product and become devices under the WiFi LAN.
·WiFi security supports the current mainstream encryption methods.
Network parameters | |
Network standard | Wireless standard：IEEE 802.11n/g/b |
Wireless transmission | 11n：150Mbps（MAX） 11g：54Mbps（MAX） 11b：11Mbps（MAX） |
Number of channels | 1-11 |
Frequency Range | 2.4-2.4835GHz |
Transmit power | 15-20dBm |
antenna | |
Antenna interface | Onboard antenna |
Function parameter | |
WIFI working mode | Wireless network card/wireless access point |
WDS function | Support WDS wireless bridging |
Wireless security | 64/128/152 bit WEP encryption WEP, WPA, WPA2 (TKIP, CCMP) security mechanism (only WPA2-CCMP is supported in AP mode) |
| Configuration method | Serial AT command |
Serial to network | |
| Connection Type | TCP/UDP Server/Client |
| Maximum number of connections | 5个(TCP Server) |
| Serial port baud rate | 1200-500000bps |
Hardware parameters | |
| Core chip | TR6260 |
| Interface Type | UART/I2S/I2C/PWM/SPI/SDIO/GPIO /ADC/PGA |
| Operating Voltage | 3.3V |
| Working current | Average 60mA, peak 100mA,Deep sleep 8uA |
| RAM(Built-in) | user SRAM 128K Bytes |
| Flash(Built-in) | 8Mbit |
| Custom Development | Provide SDK for secondary development |
Other parameters | |
| size | 24×16×2mm |
| Environmental standards | Operating temperature：-40-70℃ Working humidity：10%-90%RH（Non-condensing） storage temperature：-40-80℃ Storage humidity：5%-90%RH（Non-condensing） |
| Other properties | Band bandwidth optional：20MHz/40MHz，automatic |
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Contact number：027-87265699 Copyright：Wuhan Hi-Link Electronic Co.,Ltd. Technical Support：Gicisky
