AVR单片机费用低廉。学习AVR单片机可使用ISP在线下载编程方式(即把PC机上编译好的程序写到单片机的程序存储器中)，不需购买仿真器、编程器、擦抹器和芯片适配器等，即可进行所有AVR单片机的开发应用，这可节省很多开发费用。程序存储器擦写可达10000次以上，不会产生报废品-Single-chip low-cost AVR. AVR can be used to study single-chip ISP online download programmatically (that is, the PC, wrote procedures compiled program memory in the microcontroller), do not need to buy simulators, programming, and liberally and re-apply and chip adapter and so on, to carry out all the development and application of AVR microcontroller, which can save a lot of development costs. Program memory up to write more than 10000 will not result in end-of-life products