Tag: Dial get Sha file network div reg NULL implementationWant to know how the Raspberry Pi through the 4G Network module communication How to achieve, see this article (http://www.lxway.com/95811506.htm), ready to next have the opportunity to practice, first retained learning;One, 4G Luci configuration1. Create a new Wwan interface;2, the Internet mode for autom
Industrial board computer built with Raspberry Pi computing moduleGuideOn the Kickstarter crowdfunding website, a project named "MyPi" uses the Raspberry Pi computing module to create an SBC (Single Board ComputerSingle Board Computer), Provides a mini-PCIe slot, serial port
0 PrefaceThis article describes how to control the Raspberry Pi gpio port through the file IO sysfs. Control gpio through sysfs, first access the/sys/class/gpio directory, write the gpio number to the export file, so that the operation interface of this gpio is exposed from the kernel space to the user space, gpio operation interfaces include ction and value. Dir
! [GY-85] (http://images.cnblogs.com/cnblogs_com/hangxin1940/466697/o_gy85.jpg "GY-85 ")
9-axis IMU sensor (GY-85 module) can also be seen as three modules 'itg3205 Three-Axis Gyroscope sensor ''' adxl345 three-axis accelerator tilt sensor ''' hmc5883l Electronic Compass'
The GY-85 Module Interface is I2C and can be easily linked to the Arduino/Raspberry
, because the USB to the serial port of the minicom to communicate, and no garbled, the transmission of all the correct data2. Arduino mega2560 can transmit data, but there is garbled, possibly because the mega2560 serial port has the relation.Since the module is good, I think of another test method, a module using a USB port to the PC, and the other directly to my Rasp
Yesterday made the control led, played the first, the rest of the feeling is very simple, here recordJust a couple of photos.Play the honey module only to find the law, generally this module, there will be three pins, VCC (3.3V or 5V power supply output PIN), GNC (for Gpio pin of GNC), out/(I/O) (corresponding to the gpio number of pins), if it is necessary to send information to the
() - 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
The content of this article is Raspberry Pi python get GY-85 nine axis module information example, here using Python curses package development cli window program, used to refresh the sensor reading in real time, see the code first
GY-85.py:
The code is as follows:
#! /Usr/bin/python3#-*-Coding: UTF-8 -*-Import cursesFrom time impor
MQ-7 Carbon Monoxide Sensor Module IntroductionBrief description:First, size:32mm x22mm x27mm length x width x HeightSecond, the main chip:LM393,MQ-7 gas sensorThree, the operating voltage: DC 5 VoltsFour, Characteristics:1, with signal output indication. 2. Dual signal output (analog output and TTL level output)3,theTTL Output valid signal is low level. (When the output low signal light, can be directly connected to single-chip microcomputer)4, the a
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