Description
The HLK-7688A is a high-performance, low-power IoT module developed by Hi-Link, based on the MT7688AN chipset. With support for Linux and OpenWRT, this compact module is perfect for smart devices, industrial automation, and cloud service applications. It combines powerful processing with flexible connectivity options in a compact form factor.
Key Features
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High-speed Processing: 580MHz MIPS24KEc processor
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WiFi Support: 802.11 b/g/n, 150Mbps, STA/AP/STA+AP modes
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External Antenna: For strong and stable wireless signals
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Rich Interfaces: UART, SPI, I2C, I2S, GPIO, JTAG, USB 2.0 Host
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Secure Communication: WEP64/128, WPA/WPA2, AES encryption
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Open Development: Supports Linux 2.6.36 and OpenWRT 3.10 SDK
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Remote Management: Web-based interface, software upgrade, and config file handling
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Industrial Grade: Wide operating temperature and humidity range
Technical Specifications
| Parameter | Value |
|---|---|
| Chipset | MT7688AN |
| CPU | MIPS24KEc, 580MHz |
| RAM | 128MB DDR2 (Customizable) |
| Flash | 32MB (Customizable) |
| Interfaces | UART, I2C, SPI, GPIO, USB, I2S |
| WiFi Mode | STA / AP / STA+AP |
| Wireless Bridging | Supports WDS |
| Security | WPA/WPA2, TKIP, AES, WEP |
| Power Supply | DC 3.3V ± 0.2V |
| Current (No Load) | 170 ± 50mA |
| Peak Current | 450mA |
| Average Power Consumption | ~600mW |
| Size | 32.8 × 18 × 2.8 mm |
| Operating Temp | -40℃ to 80℃ |
| Operating Humidity | 10% to 90% RH (non-condensing) |
Applications
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Smart Home Devices
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IoT Control Systems
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Industrial Automation
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Smart Gateways
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Cloud-Connected Devices
Package Includes
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1 × HLK-7688A Serial to WiFi Module (V1.2)
