Building a Raspberry Pi-Based Parking Lot License Plate Recognition System
Developing a Complete Automated Parking Management Solution
A full-featured unmanned parking solution featuring license plate detection, automatic billing, and gate control
Project Overview and Significance
As urbanization accelerates and vehicle ownership grows, parking lot management faces challenges like low efficiency, high labor costs, ...
Posted on Sun, 30 Aug 2026 16:39:06 +0000 by shadysaiyan
Deploying Qwen3 and Qwen3-VL on Raspberry Pi 4B with ImmortalWrt and llama.cpp
System Installation and Storage Configuration
Download the ImmortalWrt image for the bcm2711 target (Raspberry Pi 4B) from the official releases. Use a tool like BalenaEtcher to flash the rpi-4-ext4-factory.img.gz image onto the TF card.
After flashing, the root partition defaults to a minimal size. To utilize the full storage capacity for mod ...
Posted on Sat, 22 Aug 2026 16:53:04 +0000 by phppssh
Reading DHT11 Temperature and Humidity Sensor Data with C# in .NET 5
Development environment: VS2019 + .NET 5 Console Application.
To access Raspberry Pi GPIO data with C#, install the System.Device.Gpio package from NuGet. The DHT11 temperature and humidity sensor connects to the Raspberry Pi via GPIO pins, and its data protocol can be obtained with the sensor documentation. In .NET 5, DHT11 sensor data is ret ...
Posted on Thu, 14 May 2026 10:51:56 +0000 by cobaltblue
Raspberry Pi 4B Button-Controlled LED Operation
Button Operation Principal
A push button functions by connecting or disconnecting a circuit. When pressed, the circuit closes; when released, it opens. To read this state via a Genarel Purpose Input/Output (GPIO) pin, the pin must not be left floating, as ambient electrical noise could cause erratic readings. To prevent this, a pull-up or pull- ...
Posted on Sun, 10 May 2026 16:06:37 +0000 by bladechob