avr单片机的mudbus与上位机的通讯协议，内有CRC16校验的程序，经典原创-avr microcontroller mudbus and host computer communication protocol, with the CRC16 checksum procedure, the classic original! !

三相电流表源程序 基于CS5460a 485通讯 遵循mudbus协议 测试成功-Three-phase ammeter source based CS5460a 485 communications follow mudbus protocol test

内含九个独立工程，主控芯片 STM32F108C8T6。九个工程分别为：操作LED灯；操作485；操作ADS1015 12位ADC芯片；操作济南有人的网口；两个版本的PID控温程序；外部时间程序；操作ch376读写SD卡程序；ucos-II+mudbus测试程序。(Contains nine independent works, master control chip STM32F108C8T6.The nine projects are: operating LED lamps;Operati