RN8209_Open_Source

超声波热量表完整代码，采样芯片部分，使用6901，也可完全用GP21替代，瑞萨RL78系列单片机，开发环境cubesuite+(Ultrasonic heat meter complete code, sample chip parts, using 6901, GP21 can be entirely replaced by Renesas RL78 series microcontroller development environment cubesuite+)

建立环形缓冲区，将发送缓冲区建立成一个环形的缓冲区，在这个环形缓冲区内，通过头指针和尾指针来定位空白区和数据区(Ring buffer and send buffer created as a circular buffer in the ring buffer head and tail pointers to locate the blank area and data area)

USB与51单片机的连接使用，采用PDIUSB12接口芯片(51 single-chip USB connectivity and use, the use of PDIUSB12 interface chip)

需要一个4个以上按键，一个LCD显示">

PROFIBUS调试助手ProfiAssistV2.40(PROFIBUS debugging assistant ProfiAssistV2.40)

说明：  STM32_SX1278实现LORA通信STM32F103完美实现(STM32_SX1278 achieves perfect implementation of LORA communication STM32F103)

manejo de solo la pantalla lcd tft 2.4 pulgadas

说明：  各位C51的爱好者能够看到我的拙作，这离不开龙 啸九天版主的支持，在此，我向他表示感谢，也相信C51BBS会越办越好！(C51 fan you can see my apology, which is inseparable from Long Xiao nine moderator support in this, I thanked him, and believe C51BBS will be better and better!)

AVR单片机m48 8m晶振，片内adc转换c程序 (AVR Singlechip m48 8m crystal, chip adc conversion c procedures)

直流斩波变化的仿真和一些参考文献 可以学习一下(The simulation of dc chopper change and some references can learn )