基于单片机的酒精浓度测试仪，指标不是很高，高手可改进。-MCU-based alcohol testing instrument, indicators are not very high, masters could be improved.

基于51单片机的酒精浓度测控系统，检测酒精浓度，传感器是MQ-3，液晶显示(Based on 51 single-chip alcohol concentration measurement and control system, detection of alcohol concentration, the sensor is MQ-3, LCD display)