基于STM32的点菜机

AbstractThe ordering machine is used for hotel waiters to hand order without paper,andSTM32F103RBT6 stmicroelectronics M3 chip is used as the main control of the system.Thedisplay USES a 2.0-inch TFTLCD screen with a resolution of 220*176.The function of thedisplay screen is realized by using the SPI protocol.The display brightness can be adjustedarbitrarily,using timer output PWM control brightness technology.Power display adopts M3master control with 12-bit A/D conversion monitoring battery power.Jiugong grid entitybutton,when a long time (time can be set)do not operate automatically off the screen intopower-saving mode.Through 433 wireless communication technology to achieve thecommunication with the server (to update the menu,send the menu ordered by the diningtable,inquire the dining table information,order,receive the server sent messages,etc.).Support Chinese character display,using SPI interface flash chip W25Q64 to store Chinesecharacter library.The application of a la carte machine,will have a greater impact on the modern cateringenterprises,for the enterprise to save a lot of manpower and material resources.The orderingmachine is easy to operate and convenient for waiters.Keywords:a la carte;STM32F103RBT6;SPI interface;flash chip