heart-rate-measurement3

1602显示源程序 基于51单片机的1602显示矩阵按键键值 按下矩阵键盘显示对应按键号(1602 Display source program,Based on 51 MCU, 1602 display matrix button key value, press matrix keyboard and display corresponding key number.)

利用数字温度传感器DS18B20与单片机结合来测量温度控制器，使用单片机AT89C51,测温传感器使用DS18B20，用3位共阳极LED数码管以串口传送数据，实现温度显示。(Binding to measure the temperature controller, using the AT89C51 microcontroller, DS18B20 temperature sensors, with a common anode three LED digital serial transmission of data to achieve using a digital temperature display and temperature sensor DS18B20 microcontroller.)

说明：  时钟芯片PCF8563 C51程序，本人测试通过(Clock chip PCF8563 C51 program, I test through)

DS18B20温度换算器，可以检验单片机传感器检测出来的值。注意，是VB.net源码。(DS18B20 temperature converter, you can test the value of single-chip sensor detects.Note it is VB.net source.)

通过NXP NFC Reader IC RC523 读取Felica (NFC TYPE 3)card，配合NXPRdLib使用（NXP官网下载） (Read Felica(NFC TYPE 3)card with RC523)

此程序可实现长度为8位，周期为255的m序列，此序列可当做伪随机信号发生器，模拟信道噪声。(This procedure can achieve the length of 8 bits, the m sequence of 255 cycles, the sequence can be used as a pseudorandom signal generator, analog channel noise.)

Iar环境下avr_bootloader的编写，可以参考参考。(Preparation of Iar under the environment of avr_bootloader, can refer to the reference.)

说明：  51单片机开发，AD转换模块 ，模数转换，高精度(51 MCU development, AD converter module, analog-to-digital conversion, high-precision)

【AVR + Proteus】数码管显示两路AD转换结果([AVR+ Proteus] digital display two way AD conversion result)

stm32芯片--用GPIO口模拟I2C驱动MPU6050陀螺仪(Stm32 chip- using GPIO port simulation I2C driver MPU6050 gyroscope)