SPI (Serial Peripheral Interface) is a high-speed synchronous serial communication protocol commonly used for short-distance, full-duplex communication between devices. In the compact design of IoT terminals, the main control module needs to efficiently and reliably exchange data with various peripheral chips (such as sensors, displays, memory, etc.). The SPI serial peripheral interface, with its high … Read more
Little_flash—— is the SPI Flash driver library for LuatOS, which mounts SPI Flash as an lfs file system, supports NAND/NOR Flash, and provides a unified API to simplify device storage expansion and driver development. This article will take theAir780EHM core board as an example to share an application example of Little_flash. Using the Air780EHM core … Read more
The core library and extension library of LuatOS together build an efficient, flexible, and easily extensible IoT development ecosystem. With a rich set of APIs, developers can easily implement complex functions such as device control, data collection, and cloud communication, significantly enhancing development efficiency and product stability. A new friend in the community is seeking … Read more
Hezhuo Air8000—— is a high-performance industrial engine that integrates multiple functions including 4G, Wi-Fi, BLE, and GNSS (Global Navigation Satellite System).. It supports 485/232/Ethernet drivers/multi-network integration/VoLTE calls, providing over 50 programmable I/O ports to meet the continuous communication capabilities and complex peripheral expansion needs of IoT devices in complex industrial scenarios. Air8000 supports LuatOS secondary … Read more
Air780EPM——Hezhuo’s low-power4G-Cat.1module launched in 2025,one of the main models,features 4MB of RAM, supports LCD, camera, Modbus, Ethernet, and CAN; it has more powerful secondary development resources, improved peripheral capabilities, and is more suitable for industrial scenarios. Recently, an engineer friend asked:What is the ADC accuracy of the Air780EPM? They want to save an external ADC… … Read more
Hello, IoT “attackers”! Today, let’s talk about those display devices in embedded development that we both love and hate. From segment displays that could only show numbers decades ago to OLED screens that can now play videos, the evolution of display technology is akin to the leap from a “brick phone” to a smartphone. So … Read more
Read the latest documentation and participate:【Find Errors in Documentation and Win Prizes】 ActivityFor the latest documentation content of this article, see:https://docs.openluat.com/air724ug/luatos/app/driver/spi/ 1. Introduction SPI stands for Serial Peripheral Interface. SPI is a high-speed, full-duplex, synchronous communication bus that only occupies four lines on the chip pins: SDI (Data Input), SDO (Data Output), SCLK (Clock), and … Read more
In the realm of the Internet of Things and embedded development, LCD screens are crucial components for human-machine interaction. The Hezhou LuatOS system, with its lightweight and highly flexible characteristics, provides developers with convenient LCD driver support. ▼ Click to view video demonstration ▼ This article will take the Air780EPM development board’s LCD application as … Read more
In IoT development, the MQTT protocol has become the “golden partner” for cloud connectivity due to its lightweight nature, low bandwidth consumption, and efficient communication. However, developers often encounter issues such as connection management, protocol compatibility, and low power optimization in practical applications. Newcomers may also struggle with practical operations regarding hardware and software… This … Read more
Read the latest documentation,Participate in: 【Find Errors in Documentation and Win Prizes】 Activity The latest documentation content can be found at:https://docs.openluat.com/air780e/luatos/app/service/wdt 1. Introduction to Watchdog Circuit The Watchdog Timer (WDT) is a monitoring circuit primarily used in embedded systems to enhance the reliability and stability of the system. With the help of the watchdog circuit, … Read more