Description: 【Innovative Floating LED Display】: LED Electronic DIY Kit features a cross rotating LED display controlled by the STC8H1K28 microcontroller, capable of storing and displaying up to 150 characters in both English and Chinese. The high brightness 0805 SMD LEDs ensure clear visibility 【High Performance 】: Equipped with a high speed FR310 , the Soldering Practice Learning Board remains stable during rotation. The power supply ensures quiet operatie 【 for Beginners & DIY Enthusiasts】: Electronic Circuit Welding Practicing kit is for beginners interested in SMD soldering. It includes detailed instructions , providing a comprehensive learning experience 【Compact Design with Acrylic Casing】: The acrylic casing dimensions are 75x75x54mm, offering a sleek and compact design that fits well in various settings 【Features】: SMD Soldering Practice Board with the included software, can easily modify displayed characters , allowing for messages to be shown on the rotating LED display effortlessly Specification: Product model: -56-560 Power supply: 5V DC MCU model: STC8H1K28 Number of display characters: 150 Chinese and English characters Number of Led: 16 Size Chart: Acrylic Casing Length: 7.5cm/2.95inch Width:7.5cm/2.95inch Height:5.4cm/2.13inch Package Includes: 1 DIY Soldering Project Kit Note: 1.This is not infant toy , please take away from children to avoid eating. 2.Please allow slightly errors 1-2cm differences due to manual measurement.