Hi-Link Wifi Module & Power Module

Product Details:

The HLK-RM04 WiFi Module (External Antenna) is a small, low-cost WiFi module designed for wireless communication in embedded systems, particularly for IoT (Internet of Things) applications. This module is based on the ESP8266 chip, which is a highly popular WiFi solution known for its compact size, low power consumption, and ease of integration into various projects. The external antenna on the HLK-RM04 enhances the WiFi signal strength and range, making it ideal for long-distance wireless communication or environments with weaker signals.

Key Features:

1. ESP8266 Chipset:

   • The HLK-RM04 module is based on the ESP8266, a low-cost WiFi microchip with full TCP/IP stack capabilities. This chip is capable of connecting to a WiFi network and provides reliable wireless communication for embedded applications.

2. External Antenna:

   • Unlike some WiFi modules that have an onboard antenna, the HLK-RM04 features an external antenna for improved signal range and reception quality. This is particularly useful in environments where the WiFi signal needs to cover a larger area or where the built-in antenna might be insufficient.

3. Low Power Consumption:

   • The ESP8266 chip used in the module is optimized for low power consumption, making it suitable for battery-operated devices and energy-efficient IoT applications. It operates with different power modes, including deep sleep, to conserve energy when the WiFi connection is not in use.

4. Supports Various Communication Protocols:

   • The module supports standard communication protocols such as TCP/IP, UDP, HTTP, and WebSockets, enabling seamless integration into networking and IoT applications. It can be used for client-server communication, IoT device control, and data transfer between devices.

5. Integrated Serial Interface:

   • The HLK-RM04 module comes with a UART (Universal Asynchronous Receiver/Transmitter) interface, which makes it easy to interface with a microcontroller, like an Arduino or Raspberry Pi. Data can be sent and received via this interface to establish wireless communication.

6. Wide Operating Voltage Range:

   • The module can operate in a wide voltage range, typically from 3.3V to 5V, making it compatible with many different microcontrollers and platforms. This flexibility allows it to be used in a variety of projects, from low-voltage applications to standard 5V systems.

7. Easy Configuration:

   • The HLK-RM04 module can be easily configured using AT commands. This makes it user-friendly, allowing developers to program and configure the module with minimal setup. The AT command set enables users to configure network settings, connect to WiFi, and send data.

8. Compact Size:

   • The module is small and compact, making it suitable for space-constrained applications. Its form factor allows it to fit easily into embedded systems, wearables, and other small IoT devices.

9. Data Rate:

   • The module supports a data rate of up to 72.2 Mbps in 802.11b/g/n WiFi modes, providing sufficient speed for most IoT and wireless data transmission applications.

Product Details:

The HLK-7688A WiFi Routing Module is a versatile, compact module designed for network communication and IoT (Internet of Things) applications. It is typically used in various embedded systems, offering WiFi connectivity and routing capabilities to allow devices to communicate with each other and with the internet. This module is based on the RTL8192CU chipset, which is widely used for providing reliable wireless network connections.

Key Features:

1. WiFi Connectivity:

   • The HLK-7688A module supports WiFi (IEEE 802.11 b/g/n) for connecting devices to a wireless local area network (WLAN). This enables the module to communicate with other WiFi-enabled devices, routers, and cloud-based services over the internet.

2. Router Functionality:

   • The HLK-7688A offers routing capabilities, which means it can not only connect to WiFi but also route traffic between devices. This feature allows it to function as a gateway or access point in a network, facilitating communication between local devices and the internet.

3. Compact Design:

   • The module comes in a small form factor, which makes it suitable for integration into space-constrained IoT devices, home automation systems, or other embedded systems that require networking capabilities without adding significant bulk.

4. Low Power Consumption:

   • Designed with low power consumption in mind, the HLK-7688A is well-suited for battery-powered applications or other energy-efficient projects. Its power-saving features help reduce the overall operational cost for long-term use.

5. Compatible with OpenWRT:

   • The HLK-7688A supports OpenWRT, a popular open-source operating system designed for embedded devices like routers. OpenWRT provides a customizable environment, enabling developers to modify and optimize the firmware to suit specific application needs, from simple routing to complex networking tasks.

6. UART Interface:

   • The module uses a UART (Universal Asynchronous Receiver/Transmitter) interface, which allows it to communicate with other microcontrollers and devices, making it suitable for integration into larger systems. This interface can be used for configuration, data exchange, or control.

7. Integration with Microcontrollers:

   • The HLK-7688A is often used in conjunction with microcontrollers like the ESP8266, ESP32, or Arduino boards to provide WiFi routing and network connectivity. It can serve as a gateway for these devices, allowing them to interact with cloud services or local networks.

8. Security:

   • The module supports common WiFi security protocols, including WEP, WPA, and WPA2, ensuring that the data transmitted between devices is protected from unauthorized access.

9. External Antenna Support:

   • Some variants of the HLK-7688A module include support for an external antenna, which can improve the WiFi signal strength and extend the range of the module, especially in areas with weak wireless signals.

Applications:

1. IoT Devices:

   • The HLK-7688A is ideal for building IoT devices that need network connectivity. It can be used in home automation, industrial monitoring, smart appliances, and remote control systems, where devices need to communicate over a WiFi network.

Product Details:

HLK-RM04 is a low-cost embedded UART-ETH-WIFI module (serial port - Ethernet - Wireless network). This product is an embedded module based on the universal serial interface network standard, built-in TCP / IP protocol stack, enabling the user serial port, Ethernet, wireless network (wifi) interface between the conversions. Through the HLK-RM04 module, the traditional serial devices do not need to change any configuration; data can be transmitted through the Internet network. Provide a quick solution for the users serial devices to transfer data via Ethernet.

Product Details:

The HLK-M50 WiFi module is a low-power chipthat integrates MCU, PMU, clock, and IEEE802.11b / g / n MAC / PHY /radio. Module supports 2.4GHz IEEE802.11b / g / n, USB Host and Device 2.0 HS,Micro SD card (SDMMC interface), UART, I2C, I2S, PMW, SPI and other interfaces,analog keys (GPADC0). Users can develop their own applications based on mbedOSthrough C or C ++. Development kit to provide a large number of guidance documentsand test routines to facilitate rapid development of users.

 

WLAN Features:

• Single-chip integrated MAC/PHY/Radio
• Integrated PA, LNA
• Supports 2.4GHz IEEE 802.11b/g/n. 
• Integrated PA, LNA
• 20/40MHz bandwidth, maximum 150Mbps
• Support WPA, WPA2, WEP, TKIP,CCMP
• Support STA, softAP, P2P, STA+softAp,STA+P2P
• Support A-MPDU, A-MSDU, HT-BA
• Lightweight TCP / IP protocol stack

 

MCU Features:

• Integrated ARM-CM4 MCU, the maximum clockfrequency of 160MHz
• Integrated MPU and mbed uvisor,
• Support external psram interface
• Built-in 8Mbit SPI flash
• Function pin position programmable
• Available external rising / falling edge interrupt or wake-up GPIO
• Integrated UART×2/I2S×2/I2C×1/PWM×8/SPI×4/SDMMC×1/USB2.0×1
• Integrated 2 channel ADC
• Integrated watchdog and low-power timer
• Operating system using mbedOS5.1

Product Details:

The chip of HLK-RM08K is MT7688K , which can replace HLK-RM04. There are 4 net exports, 2 seriel ports and the power consumption is about 100mA.

HLK-RM08K is a embedded module of UART-ETH-WIFI (serial-Ethernet-wireless network), which is based on MT7688K, a smart home networking WIFI module.

This product is a embedded module that based the common serial interface that meets the network standard , built-in TCP/IP protocol stack, the user can achieve serial port, Ethernet, wireless network (WIFI) conversion between the 3 interfaces.

Through the module, the traditional serial device, in the case of no change to any configuration, you can transfer your data through the Internet network.

Specification:

Product Details:

The A7670C LASL Module is a compact LTE Cat 1 module designed to support multiple wireless communication standards, including LTE-FDD, LTE-TDD, GSM, GPRS, and EDGE. It is optimized for IoT and M2M (Machine-to-Machine) applications requiring reliable cellular connectivity.

Key Features:

1. Connectivity:
   • LTE-FDD and LTE-TDD support.
   • GSM fallback for areas without LTE coverage.
2. Speed:
   • Maximum downlink rate: 10 Mbps.
   • Maximum uplink rate: 5 Mbps.
3. Interface Options:
   • UART, USB 2.0, GPIO, and other standard interfaces for seamless integration with devices.
4. Compact Design:
   • Surface-mount LGA package, typically 24 mm x 24 mm, suitable for compact devices.
5. Wide Band Support:
   • Supports multiple LTE and GSM frequency bands for global compatibility.
6. Operating Range:
   • Temperature: -40°C to +85°C, ideal for harsh environments.
   • Power Supply Voltage: 3.4V to 4.2V.
7. Firmware Upgrades:
   • Supports updates via USB or FOTA (Firmware Over-The-Air) for security and feature enhancement.
8. Applications:
   • Smart metering, asset tracking, smart city solutions, industrial automation, and connected consumer electronics.

This module is designed for reliability and flexibility in IoT ecosystems, where stable connectivity and efficient power consumption are critical.

Product Details:

The Hi-Link HLK-RM08K is a versatile embedded module that facilitates seamless communication between serial devices and wireless networks. Based on the MT7688K chipset, it enables data transmission over Wi-Fi, Ethernet, and UART interfaces, making it ideal for IoT applications, smart home devices, and industrial automation systems.

Product Details:

The Hi-Link HLK-RM65 is a high-performance WiFi 6 (AX3000) module designed for embedded networking applications. It integrates a dual-core ARM Cortex-A53 processor and supports dual-band WiFi (2.4 GHz and 5 GHz), making it suitable for high-speed wireless communication in various IoT and networking projects

Product Details:

HLK-RM08A is a wireless routing module which can be applied in the fields of camera IP, smart home and other things.

The main chip of the module is MediaTek the latest system single chip MT7688AN, supports Wifi 802.11n standard, no line transmission rate up to 150Mbps. MT7688AN built in a MIPS 24KEc CPU DDR2, support, 10/100M 1-port, host USB2.0, I2C, SD-XC, I2S/PCM, UART,, GPIO, 575/580MHz.HLK-RM08A has a rich interface, which can better solve the monitoring audio and video services, and has excellent RF performance, wireless transmission is more stable.

Main characteristics

• Built in MIPS24KEc/580MHz CPU, 802.11b/g /n2 work in 1T1R, 2.4GHz data transfer rate up to 150Mbps
• Support Linux platform, OpenWRT a complete protocol stack (protocol stack)
• Lead interface: 5-port Ethernet 10/100M, USB2.0, I2C, I2S, TF/SD card, GPIO interface, 2UART

Product Details:

It is 6-30V 1-Channel Delay Power Relay Module with Onboard Adjustable Timing Cycle Switches with Digital LED display It is mostly used in Home Automation Delay Timer Control Switch Module Timer Controller. The Module operates at Operating voltage range of 6-30V, also it supports micro USB 5.0V power supply. Output capability: Can control the device within DC 30V 5A or AC 220V 5A. It can be applied to many fields as there is a wide range of application.

Features:

• Optocoupler Isolation: improve the anti-interference ability, after the parameter setting, it will be in memory forever.
• Wide voltage power supply (6 ~ 30V) supports micro USB 5.0V power supply, easy to use.
• The interface is clear, simple, powerful, and easy to understand, can meet almost all your needs.
• With emergency stop function (STOP button) and reverse polarity protection which can avoid burning by reverse connection.
• Adding sleeping mode, when the mode is enabled, if there is no operation within 5 minutes, the display will be turned off automatically, press any button will wake it up;
• You can set different parameters of OP, CL, LOP, which are independent of each other and are stored separately.
• All the parameter settings will be stored automatically when power is off

Additional Information:

• Item Code: HW521

Product Details:

The Hi-Link HLK-RM08S is a compact and versatile WiFi module designed for IoT applications, enabling seamless communication between serial devices and wireless networks. Based on the MT7688KN chipset, it offers robust features suitable for various smart device and cloud service applications