读书机又叫点读机，市面上流行的小学英语学习工具。 本资料有程序，原理图和PCB图，是难得一见完整的开发资料。本产品出口韩国。-Reading machine known point of time machine, the popularity of primary school English learning tool. The data have the procedures in the schematic and PCB, is a rare complete development