DS-01444A

老板经常向我们灌输的一种51程序结构，可以说是很经典，基本能使用大部分MCU程序框架编写；(The boss often to instill a 51 program structure, is classic, basic procedural framework be able to use most of the MCU write )

强噪声背景下弱信号检测，采用平衡式取样积分电路。包含电路原理，基于IAR的msp430f149的DDS脉冲程序和峰值检波程序，检波方法：sqrt(Acos^2+Asin^2)(Strong noise weak signal detection, the use of balanced sampling integrator circuit. Contains circuit theory, based on the IAR msp430f149 of the DDS program pulse program and peak detector)

PIN DIAGRAM FOR TL 494. IT TELLS CLEARLY HOW TO CONNECT TL 494.

Alarm / launcher Implemented all the basic functions and features: timer, playing Call (wav), running an application / document, save the settings (manual and automatic), autoloading and avtosvorachivanie (being involved and switchable by the user), the player calls (wav ov), with which you can lose wave y in the right directory and select it by double-clicking.

说明：  此程序是使用ADXL345三轴重力传感器和433超再生无线模块结合，在重力感应下，通过发射模块将方向信号发射给接受模块，从而控制小车的方向。(This program uses adxl345 three-axis gravity sensor and 433 super regeneration wireless module. Under the gravity induction, the direction signal is transmitted to the receiving module through the transmitting module, so as to control the direction of the car.)

电动车仪表盘设计源代码，基于st单片机，以用于产品，可供学习参考(Electric car dashboard design source code, based on the st microcontroller for use in products for learning reference)

Arduino 对接收到的信号进行解码操作，从而得到按键信息，根据按键值控制舵机。(By decoding the received signal, the key information is obtained and the steering gear is controlled according to the key value.)

Application that displays the values of the acceleration sensor graphically.

读写24lc128/256等EEPROM(Read and write 24lc128/256 EEPROM etc.)

high speed pcb design spicification, the book is very useful.