arduino altimeter

resistance because voltage between Vref and GND is fixedAnd no current would go into Vref pin duo to the virtual short and virtual open of the error amplifier inside of the Regula Tor Chip.Now it's time to value R3, R2, R1.Make sure is the output range of this regulator (Vout) and DAC (VDAC), and Vref by checking the datasheet of part.Then, list of the equation.(vdac.max-vref)/r2+ (vout.min-vref)/r3=vref/r1(vdac.min-vref)/r2+ (vout.max-vref)/r3=vref/r1Three unknown resistance, but both equation

Arduino Due, Beaglebone, mbed, or raspberry Pi are just a few examples of ARM -based embedded platforms for IoT product prototyping. Our intention to write this blog post is not only to compare these boards, but also to examine the significant impact of the processors in your design as they go into production.Internet of ThingsSterilizationas you read in the recent blog post,The Internet of Things is in vogue. In the context of stimulating innovation

ArduinoYun hardware introduction and ArduinoYun hardware tutorialArduinoYun introduction to ArduinoYun power outlet Arduino Yun has two outlets which can be divided into three types: power supply, digital I/O, and analog input. The power supply is mainly concentrated in part 1.7. Figure 1.7 Power Supply concentration There are also two locations in the 1.8 format. Figure 1.8 Power Supply Section The following describes the names and meanings in the

: Network Disk DownloadContent Introduction······python is a powerful programming language that is easy to learn and fun. But after mastering the basics, what do you do next? This book contains a set of imaginative programming projects that will guide you in using Python to create images and music, simulate real-world phenomena, and with arduino to interact with hardware such as Raspberry Pi. You will learn to use common Python tools and libraries,

Linkit Series Blog: MediaTek Linkit 7688 (i) Start and build OpenWrt Cross compilation environment under Mac, C language compiling Hello,world MediaTek Linkit 7688 (ii) GPIO basic operation and C language programming MediaTek Linkit 7688 DUO (iii): Control peripherals and sensors through Arduino Linkit 7688 DUO (iv): Connect the various Arduino sensors and modules--basic articles Linkit 7688 DUO (v) Connec

brillo* is a solution from google* for building connected devices. Incorporating aspects of the android* platform, Brillo brings security, local and Inter-device service compatibility, and A modular approach to system for your Intel IoT technology. Verified functionality with Brillo for the Intel? Edison Board results in a versatile and speedy Time-to-market platform for scaling your projects beyond proof s of concept.In this guide, would you connect the Intel? Edison module to an

1, Http://www.gammon.com.au/spiThis article explains in great detail the SPI communication of Arduino.2,http://www.brianhensley.net/2012/07/getting-spi-working-on-raspberry-pi.htmlThis is the SPI communication that speaks Raspberry Pi.3,http://mitchtech.net/raspberry-pi-arduino-spi/This article describes the communication between PI and Arduino via SPI, but it is

. It introduces programming languages in the Electronic Art environment, Introduce the concept of electronic art to programmers. It is an extension of the Java language and supports many existing Java language architectures. Syntax is much simpler and has many considerate and user-friendly designs. Processing can be used on Windows and Mac OS x, Mac OS 9, Linux, and other operating systems. Processing features easy to learn and easy to learn. It does not require strong programming experience an

Perhaps this can be thought of as your graduation project or you can use it to control what you want to control, in short you can use it to make a minimal IoT system. However, there may not be such a complex feature here, because the emphasis is minimal. Bareminimum, that's why I didn't change the name of the project on Arduino because it's the smallest, (PS: Everyone knows, if playing hardware). The Internet of things, this thing has been very comple

[Go] Front end learning--Choose whether the result is a jquery object or a DOM object: http://blog.csdn.net/xukai871105/article/details/345313731. Select all the Li[using jquery]1 var $obj = $ ("li"); 2[Using JavaScript]1 var obj = document.getelementsbytagname ("li"); 2[main difference]At this point $obj is a collection of jquery objects, and obj is a collection of Dom objects.2.Jquery object becomes DOM object--[] Method1 var obj = $ ("li") [0]; 2 console.log (obj); //

At first I was connecting a WiFi module to my Arduino uno, but Uno has only one UART and this UART is connected to the USB port. There have been some and very strange problems. After entering the setup mode (M0=1, m1=1), it is indeed possible to set the parameters of the settings are saved successfully, but using C3C3C3 can not get to the version without any return, may be my RX data line without contact issues.Later I will two UART WiFi module commun

reference:https://projects.drogon.net/raspberry-pi/wiringpi/functions/Functions (API)Some of the functions in the WIRINGPI Library is designed to mimic those in the Arduino Wiring system. There is relatively easy-to-use and should present no problems-anyone used to the Arduino system, or C programming in -general.The main difference is this unlike the Arduino sys

Software Ide:arduino 1.6.31, the installation of the library:Download the source package from Https://github.com/jcw/ethercard, unzip, copy the Ethercard-master folder to the same library folder as the Arduino installation directory: D:\Program Files (x86) \ Arduino\libraries, and renamed to Ethercard2. Open ArduinoCopy related code, save, compile, upload.3. Set the computer IP to 192.168.2.24. Browser Logi

Original: http://blog.csdn.net/xukai871105/article/details/12684617 Raspberry Pi from abroad, foreign embedded open source field has a good sharing spirit, Raspberry Pi Various integrated libraries are also emerging, the following recommended several. "Python GPIO" (the more precise name of the library should be Raspberry-gpio-python)Simple Introduction: Recommended and easy to get started in the Raspberry Pi official profile. Python gpio is a small Python library that can help users complete ra

Note: This is not a complete list of methods, but some of the more important and common methods Enter in the terminal after opening Kali ~# Setoolkit When you open a program, select the first social-engineering attacks, a social engineering attack method, can include several attack methods 1. Harpoon-type fishing attack (spear-phishing Attack) A way to attack by mail 2. Website attack (Website Attack) 3. Media infection attack (Infectious media grnerator) 4. Mass mailing Attack (Mass Mai

Hauntbox is an open source hardware controller that can meet the needs of random sensors and controllers to build complex, self-active lingering in the heart of electronic projects. It does not require welding or pre-learning what knowledge. is fully controllable and compatible with the Arduino board.With open source support controllers, you can easily add sound to your haunts and projects without programming, and make yourself active!What is Hauntbos

OpenWrt the baud rate used by default is 115200,arduino serial port baud rate can set itself. Of course, it is generally set to 9600, or it can be set to 115200. Suppose now OpenWrt baud rate is 115200,arduino the serial port baud rate is 9600. How do I set up a communication? First we need to use stty this software to change the baud rate on openwrt. Install Stty is very simple, opkg update software list,

the various circumstances of the analysis of what, have not encountered. Now use the Environment: browser, Nodejs, temporarily did not find any problem. Here just think that the scope of the name function expression As object is very interesting, but in the browser to try, no problem, it may be the implementation of the reason for ES5 it.Improved stack tracking this is really useless, such as try to see.Tips Using a named function expression in the Error object and the

large number of floating-point budget to ensure high accuracy, this will affect the microcontroller to the final attitude control response rate, the advantage is to change the chip data, application mature, The price is cheap, is a very suitable for beginners to get started chip.Scenario Two: Fiber optic gyroscope. Fiber optic gyroscope is a sensitive element based on the optical fiber coil, the light emitted by the laser diode in two directions along the optical fiber transmission. The change

Download sysbench git clone https://github.com/akopytov/sysbench.git Compiling the installation ./autogen.sh./configure #./configure--without-mysql (do not compile the function module to test MySQL) make make install The following commands are copied from high-performance MySQL Test the CPU, calculate the run time of the prime number Sysbench--TEST=CPU--cpu-max-prime=20000 Run Test file I/O SEQWR sequential write seqrewr sequential rewrite seqrd sequential read RNDRD Random read Rndwr random w