7407大电流供应，最大能有30ma，可以驱动电压高达30V，是理想的常用驱动芯片

基于单片机的多路数据采集系统的设计方案，采用的是AD0809和51单片机，及LED液晶显示-To ADC0809 and 8051 as the core of the system, including three parts: data collection, data processing and display, the terminal receiver. Including its control, display, A/D converter, power conversion i

基于单片机的多路数据采集系统的设计方案，-To ADC0809 and 8051 as the core of the system, including three parts: data collection, data processing and display, the terminal receiver. Including its control, display, A/D converter, power conversion interface, personal comput