raspberry pi microphone gpio

() - whileGpio.input (echo_pin): + Pass At2 =time.time () at return(T2-T1) *340/2 - - Try: - whileTrue: - Print 'distance:%0.2f M'%checkdist () -Time.sleep (3) in exceptKeyboardinterrupt: -Gpio.cleanup ()found that the catch of the exception is for Crtl+c trigger, before my several modules if the output of the CTRL + C or will continue to output, I can only write a script to close the output of the corresponding pin, with this abnormal capture, it is more convenie

FirstSome time ago, took a little time to do the number of children learning problems of the small programHomeDo a problem interface (topics are randomly generated every time, subtraction)To record a problem.Now the question is coming, how can we know at any time whether the homework is finished?It's too hard to refresh every time you open the title record page.So I made a Raspberry Pi + small LED light equ

Javame embedded 3.3 released, supporting Raspberry Pi Author: chszs, reprinted with note. Blog homepage: http://blog.csdn.net/chszs Oracle recently released two javame versions: First, javame embedded 3.3 for Raspberry Pi (Ea version );The second is javame SDK 3.3 (EA ). Developers can now develop rich javame app

) # Numbers GPIOs by physical Locationgpio.setup (IN1, GPIO. Out) # Set Pin ' s mode is Outputgpio.setup (IN2, GPIO. Out) GPIO. Setup (IN3, GPIO. Out) Gpio.setup (IN4, GPIO. def loop (): While True:print "Backward ..." backward (0.003, up to) # Steps---anglep

it here."2" Installation Wiringpi, previously mentioned, check the Gpio pin assignment after installation. The PIN diagram is as follows:"3" according to the figure line, TXD is 8 feet connected to the MAX232 Rx Rxd on the TX, the TTL level to RS232 level so that the computer can recognize.Writing code in "4" Eclipse#include intMainvoid){ intFD; if(FD = Serialopen ("/dev/ttyama0",9600)) 0) {printf ("Serial err\n"); } while(1) {uartbuff[0]=Seri

The problem is the Web server built on the Raspberry Pi, want to control the Raspberry Pi Gpio through the Web page, the webpage is implemented by PHP, through the PHP exec function call write good program implementation of the GPIO