基于TI CC2540/2541芯片的，通过BLE，空中更新单片机上的固件实现过程。-Based on TI CC2540/2541 BLE OAD.Over-the-air firmware download .

一个西门子与plc通讯的实例，很好理解的一个东西，希望对你有帮助。-Two pilots have been suspended after a plane carrying 280 passengers plunged suddenly in the airspace over Turkey. Air regulators in India have set up an investigation into the “serious...suddenly in the airspace ove

7-300plc从入门到精通这本书的电子版，这本书是学习S7-300很经典的一本书-Two pilots have been suspended after a plane carrying 280 passengers plunged suddenly in the airspace over Turkey. Air regulators in India have set up an investigation into the “serious...