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
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
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