Setting Up USB-to-Serial Communication on LicheePi 4A
This guide covers estbalishing serial communication between a LicheePi 4A board and a host PC using a USB-to-TTL adapter. The board runs Debian 20231023 with the LicheePi 4A 8+8G configuration.
Prerequisites
The onboard UART1 operates at 1.8V logic levels. Since most USB-to-Serial adapters use 3.3V or 5V signalnig, a voltage level converter is ...
Posted on Sun, 17 May 2026 07:27:40 +0000 by shibbi3
Porting Linux USB Drivers for Quectel EC200A 4G Module on NVIDIA Jetson AGX Xavier
Hardware Platform Overview
This implementation targets the NVIDIA Jetson AGX Xavier embedded platform for adding mobile network connectivity using the Quectel EC200A 4G USB dongle module.
Development Environment
Operating System: Ubuntu 20.04.5 LTS
Compiler: aarch64-linux-gnu-gcc 9.4.0
The compilation process can be performed either natively ...
Posted on Sun, 10 May 2026 20:39:58 +0000 by web_loone_08