LoRaTx

stm32制作的MP3播放器，实现了fatfs，sdcard，MP3解码等功能。(STM32 production of the MP3 player, FatFs, sdcard, MP3 decoding and other functions.)

nrf52832主从一体透传，亲自试过可行！(Nrf52832 master-slave integrated transmission.Try it in person!)

说明：  STM32 读取绝对值编码器数据，HAL库(STM32 reading encoder data)

说明：  内含C文件及Proteus仿真文件 矩阵键盘输入密码，初始密码为12345678,每按一次键有短滴声,输入密码正确液晶屏显示正确信息并且电机转动，输入密码错误会发出警报，LED灯闪烁，复位取消警报，0--9号键为数字键,10号键为确认键，11号键清除键清除所输入密码或取消修改密码，12、13、14号键实现修改密码功能。(Containing C file and Proteus simulation file Matrix keyboard input password, the initial password is 12345678, every time a key is pressed, there is a short sound, the correct input password LCD screen displays the correct information and the motor rotates, the input password error will send an alarm, LED flashes, reset and cancel the alarm, 0-9 keys for the digital key, 10 keys for the confirmation key, 11 keys to clear the input secret. Code or cancel password modification, key 12, 13, 14 to achieve password modification function.)

按键扫描，逐行检测，，，，，，，，，，，，，，，，(Key-press scan, line by line detection...................)

通过调用库函数在STM32103开发版上点亮一个LED灯(Light a LED lamp on the STM32103 development version by calling the library function)

这是24L01台产资料，详细介绍了24L01如何使用，还有一些教程。(The machine is 24 l01 production data, 24 l01 was introduced in detail how to use, and some tutorial)

enc28j60网络模块 proteus仿真及代码(enc28j60 proteus uip tcp/ip)

说明：  433MHz decode

STM32控制DDS输出正弦波等波形，频率幅值可调。(STM32 control DDS output sine wave waveform, adjustable frequency amplitude.)