AC2_OptFlow - arducopter - Arduino-based autopilot for mulitrotor craft, from quadcopters to traditional helis. Optical Flow Sensor To improve position hold accuracy ArduCopter now supports the sold by the DIY Drones store. Connecting the sensor to the APM1 Directly solder wires to the top of the Oilpan as shown below Default mounting is lens pointing down, pins forward Connecting the sensor to the APM2 Power, GND, NCS pins should be attached to A3 MISO, MOSI and SCLK pins should be directly soldered to the pins shown Default mounting is lens pointing down, pins forward Connecting the sensor to the APM2.5 Connect VCC, GND, MISO, MOSI, SCLK and NCS pins as shown in the diagram below (it's a standard [ ICSP header) Default mounting is lens pointing down, pins forward Cut and resolder the MISOLVL jumper on the back of the board to switch the MISO pin to work on 3.3v.
Testing the sensor Capturing an image from the sensor How it works Sensor's x and y values can be converted to real distances based on altitude. Safeflight Copters, LLC | Safety & Perfomance Through Innovation. GPS Receiver (MTK3339) Looking to add location awareness to your next project this is the perfect solution. This is a really high quality GPS receiver (10 Hz, 66 Channels & high sensitivity) mounted on a really friendly breakout board (3-5v logic compliant, on board regulator & mounting holes) all for a very reasonable price.
Using it is super simple as well, just four wires, then either get it up and running with an example sketch (link below) or the easy to use parsing library (link below) to start. Features: High Quality GPS Receiver Module (MTK3339) (10 Hz 66 Channels)Mounted on a user friendly breakout board (5v compliant, on board regulator, space for an RTC battery)Easy to use Arduino library. Technical Details: Satellites: 22 tracking, 66 searchingAntennae Size: 15 x 15 x 4 mmUpdate Rate: 1 to 10HzStart Time: 34 SecsSupply Voltage: 3-5.5vLogic Voltage: 3.3-5vMaximum Altitude: no limitMaximum Velocity: 515 m/sOutput: NMEA 0183, 9600 baud Includes: GPS Breakout Board (MTK3339) (x1)Male Header (12 pin) (x1) Regional aeromagnetic anomalies in Ellsworth Land: Crustal structure and Mesozoic microplate boundaries within West Antarctica - Maslanyj - 2012 - Tectonics. Options for accessing this content: Type your institution's name in the box below.
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Register now > ArduIMU+ V3. Important Note: ArduIMU is not an Autopilot. It's just an orientation solution (the heart of an Autopilot) and can be used on anything where you want to know its orientation in respect to the ground--boats, cars, rockets or even your dog. To learn more about IMUs read here. ArduIMU V3 features the new MPU-6000 that includes 3 axis gyros & accells built-in, the latest 3 axis I2C magnetometer HMC-5883L and the classic but very robust Arduino Atmega328 running at 16Mhz...
MPU-6000 uses SPI for max performance. Specifications: Other ArduIMU V3 features: Pin compatible with ArduIMU V2.Breadboard compatible (ArduIMU V2 was not!). SD card shield for Arduino V2.1 :: HW Kitchen. #12 - Arduino a displeje I. Arduino a displeje I. V článcích o displejích si ukážeme různé způsoby grafického výstupu z Arduina. V prvním díle si předvedeme, jak používat maticové LED displeje. Také se zaměříme na platformu Rainbowduino a ukážeme si i pár příkladů využití. Úvod U velké části projektů se dostaneme do situace,... #11 - Propojujeme Arduino s jinými zařízeními Propojujeme Arduino s jinými zařízeními V dnešním článku se budeme zabývat možnostmi připojení více desek Arduino k sobě a jejich vzájemné komunikace.
. #10 - Arduino a Processing Arduino a Processsing V minulém díle jsme si představili prostředí Processing. . #9 - Processing Processing Dnešní díl bude trochu netypický. . #8 - Arduino jako klávesnice a myš Arduino jako klávesnice a myš V dnešním díle se podíváme na již dříve zmiňované desky, které jsou založeny na čipu ATmega32u4. . #7 - Uživatelsky definované funkce #6 - Užitečné funkce Užitečné funkce V tomto díle si ukážeme, jak může Arduino vnímat čas. MicroSD Shield Quickstart Guide. MicroSD Shield Quickstart Guide Skill Level: Beginner by zagGrad | May 18, 2010 | 26 comments microSD Shield From digital cameras to smart phones and even some laptops, SD cards are found everywhere. On an Arduino a microSD card provides the ability to save lots of information to a file system (think dataloggers), as well as to retrieve megabytes of data. This page serves as a starting point for everything you need to get up and running with the microSD Shield for the Arduino.
How do I assemble it? For a step by step guide to assemble the MicroSd shield see the Assembly Guide What do I do with it? While the Arduino does have some on-board memory it's really not very much, only 1 kilobyte. SdFat Library (Extract this zip file in the 'libraries' folder of your Arduino directory) Basic Arduino microSD Code Crazy Arduino microSD Code How do I make it work? Once you've got the shield assembled you can begin to change the example code to make the microSD shield do your bidding: How do I open a file? CRC Implementation Code in C. By Michael Barr CRCs are among the best checksums available to detect and/or correct errors in communications transmissions. Unfortunately, the modulo-2 arithmetic used to compute CRCs doesn't map easily into software. This article shows how to implement an efficient CRC in C. I'm going to complete my discussion of checksums by showing you how to implement CRCs in software.
For most software engineers, the overwhelmingly confusing thing about CRCs is their implementation. Modulo-2 binary division Before writing even one line of code, let's first examine the mechanics of modulo-2 binary division. Figure 1. The modulo-2 division process is defined as follows: Call the uppermost c+1 bits of the message the remainder Beginning with the most significant bit in the original message and for each bit position that follows, look at the c+1 bit remainder: If the most significant bit of the remainder is a one, the divisor is said to divide into it. Bit by bit Listing 1. Code clean up Listing 2. Tutorial: Arduino and XBee Communication.
--D. Thiebaut 17:47, 9 April 2012 (EDT) Setup The setup is simple: Windows PC <---USB-cable---> Xbee (receiver) <--wireless--> XBee (Xmitter) <---> Arduino Instead of a pure Windows machine, we're using a MacPro running Windows in Parallels. Testing XBees on the Windows PC Note: The 2 XBee modules are purchased from ADAFruit.com Testing steps: Downloaded X-CTU software from ladyada.net X-CTU upgraded itself once started Followed the directions from the configure page at ladyada.net Module #1:(marked with "1" in silver marker on square near antenna) Communication with modem.
Following steps from the configure page, reset the baud rate to 19200, and upgraded to most recent firmware. Communication with modem. Following steps from the configure page, reset the baud rate to 19200, and upgraded Module 2 to most recent firmware. Testing Arduino Install Arduino IDE on 2nd computer (a MacPro) Launch Arduino app IDE Connect Arduino board to MacPro via USB cable. Connection of Arduino to XBee.