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IOT Smart Serial Port to WiFi Module M50 Tmall Elf Voice Remote Control Switch/Light/Socket
HLK-M50 WiFi module is a low-power chip that integrates MCU, PMU, clock and IEEE802.11b/g/n MAC/PHY/Radio modules
The module software part adopts the mbed OS5.1 operating system, with fast and stable WiFi serial port transparent transmission function. Can provide flexible and rich customized development services.
Pin description
Numbering | Features | Description |
1 | RST | Reset |
2 | ADC | ADC |
3 | GPIO1 | General input output |
4 | GPIO2 | General input output |
5 | GPIO3 | ES/Def key input, default high, low when pressed |
6 | GPIO13 | General input output |
7 | GPIO12 | SPI_MOSI; UART0_CTS |
8 | VCC | Power supply 3.3V |
9 | GPIO22 | General input output |
10 | GPIO22 | General input output |
11 | GPIO21 | General-purpose input and output (no interrupt) |
12 | GPIO0 | General input output |
13 | GPIO4 | General input output |
14 | GPIO5 | General input output |
15 | GND | Public land |
16 | GPIO8 | Status LED output pin, active low |
17 | GPIO7 | General input output |
18 | GPIO9 | General input output |
19 | USB-DN | D- |
20 | USB-DP | D+ |
twenty one | RXDO | UART0_RXD |
twenty two | TXDO | UART0_TXD |
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.
Product HLK-RM58S 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 can be converted mutually.
·WiFi security supports the current mainstream encryption methods.
·In this mode (AP mode), through settings, the data of COM1 and WiFi can be converted mutually.
·The WiFi device can connect to the product and become a device under the WiFi LAN.
·WiFi security supports all current encryption methods.
Question 1: Where can I download the module product information?
After placing an order, you can leave an email address to the customer service, or directly visit the official website of Hlktech Electronics www.hlktech.com and click "Product Center" to download the corresponding product information
Question 2: What is the firmware version and networking mode of the module?
M50 firmware version is divided into ordinary firmware version and private cloud version
1. The corresponding APP for the normal version is: HLK-TCP demo;
2. The corresponding APP for the private cloud version is: Smart Life Manager
There are two ways to configure networking: 1. STA mode; 2. AP mode
Question 3: What is the working mode of the module?
There are two working modes of the module: 1. The default is transparent transmission mode; 2. AT mode.
The at command cannot be sent in the transparent transmission mode. The at mode can be configured with the configuration tool to configure parameters and query parameter information. After the parameter configuration is completed, the module will automatically connect to the router in the transparent transmission mode, and establish a TCP/UDP connection through the connection to realize serial data transparent transmission
Question 4: How does the module enter the AT mode?
Method 1: Ground pin 5 (0.1~3s) seconds.
Method 2: Develop the ES0/default button of the baseboard: short press (0.1~3s).
*Remember: Grounding or pressing the button for more than 6 seconds will restore the factory settings, and the network configuration information and configuration parameters will be deleted.
Question 5: How to restart the module?
Method 1: Short press on pin 1 to ground (0.1~3s). (Restore factory settings for more than 6 seconds after grounding)
Method 2: Short press the RST button on the development baseboard and short press (0.1~3s). (Long press for more than 6 seconds to restore factory settings)
Network standard | Wireless standard: IEEE 802.11n/g/b |
Wired standards: IEEE 802.3, IEEE 802,3u | |
Wireless transmission rate | 11n: up to 150Mbps |
Number of channels | 1-11 |
Frequency Range | 2.4-2.4835G |
Transmit power | 14-20DBM |
Antenna | |
Antenna type | Onboard antenna/external antenna (default onboard antenna) |
Function parameters | |
WIFI working mode | Wireless network card/wireless access point |
WDS function | Support WDS wireless bridging |
Wireless security | Wireless MAC address filtering |
Wireless security function switch | |
64/128/152 bit WEP encryption | |
WPA, WPA2, WEP, TKIP, CCMP | |
Network management | Remote web management |
Configuration file import and export | |
APP remote control (only cloud version) | |
Serial port to network | |
TCP Client | 2 |
Serial port baud rate | 1200~3000000bps |
Hardware parameters | |
Core chip | Ziguang RDA5981 |
Interface Type | UART×2/I2S×2/I2C×1/PWM×8 /SPI×4/SDMMC×1/USB2.0×1 |
Operating Voltage | 3.3V |
Working current | Average 60mA, peak 100mA |
Other parameters | |
size | 25×16×3mm |
Environmental standards | Working 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 is optional: 20MHz, 40MHz, automatic |