数字温度计制作指导，是基于51单片机，用DS18B20制作的数字温度计，并可自行添加报警电路实现报警。包括电路图和程序以及详细的制作流程。-Digital thermometer production guidance is based on 51 microcontroller, digital thermometer with DS18B20 produced, and can add their own alarm circuit alarm. Including schematic and procedures, and detailed production process.