SMD Dot Matrix Advertising Screen Kit 256 LED 5V DC …, Mackay

Specification Product Name SMD dot matrix advertising screen kitPCB Board Size 97mm x 85mmPower Supply DC 5VDisplay Unit 256 LEDs 0805 Red LED arranged in a dot matrix patternControl Method Row by row scanningNote This is an unassembled kit you need to solder and assemble Feature The kit consists of 256 0805 SMD LEDs to form a display unit It can display 256 pixels such as Chinese characters by row and column scaimiiig The kit comes with a microcontroller with a pre programmed program The startup display mode is All lights up love symbol You are great character advertisement Then repeat the above display content The microcontroller program of this kit has been burned and the effect can be achieved after welding The source program is not provided Since the main component of the kit is LED tlie circuit is relatively simple and can be assembled in one go Circuit principle The control core of the circuit is the microcontroller U1 which continuously transmits row scanning data to U2 and U3 through the written program and transmits display data to U4 and U5 there by controlling the display screen to display the corresponding pattern regularly Features 1 Pre programmed Microcontroller Included The set comes with a microcontroller that has been pre programmed to display predefined patterns such as full screen heart shaped and text advertisements 2 256 Pixel Display Capable of rendering complex shapes and text through its matrix of 256 LEDs provid