Support this project. Amazon wishlist. The Nano. VM Java for the AVRThe Nano. I/Ucckk89SokI/AAAAAAAAIbg/R8Z3S7KJu-U/s1600/SerialTest_01.png' alt='Java Rxtx Usb Serial Port' title='Java Rxtx Usb Serial Port' />VM is a java virtual machine for the. Atmel AVR ATmega. CPU, the member of the AVR CPU family used. DLR Asuro robot, manufactured by AREXX. The window will show up. Simply select the serial port your Arduino board is connected to and click Connect. The sensor data will be drawn on screen in real time. Java Rxtx Usb Serial Port' title='Java Rxtx Usb Serial Port' />Arduino and Java. See page history for list of all contributors. Overview. The Arduino IDE itself is written in Java, and it can communicate to the serial port via. With the Nano. VM, the Asuro can be programmed in the. Java language using the standard Sun JDK. Java Rxtx Usb Serial Port' title='Java Rxtx Usb Serial Port' />The Nano. VM and. GPL and can be used on other AVR. HdV3.png' alt='Java Rxtx Usb Serial Port' title='Java Rxtx Usb Serial Port' />The Nano. VM for Asuro replaces the original firmware of the Asuro. Java virtual machine capable of running a subset of the virtual. This enables e. g. Asuro to interpret java. The Nano. VM is a very resource aware implementation of the java. The Asuro version including a boot loader and several native. Bytes flash rom of the Asuros AVR ATmega. CPU. The complete 5. Byte EEPROM space of the CPU are available as. Java program space and 7. Byte RAM space are available to. Java program. The current version of the Nano. VM for Asuro includes. Support for standard java bytecode. Tested on AVR Mega. Mega. 32. Configurable 1. Optional float support. Garbage collection. Bootloader for simple application upload. Tested with Suns JDK and IBMs jikes. Supports inheritance. Unified stack and heap architecture. Requires less than 8k. Bytes of code memoryat least 5. Bytes code storage for java byte code. AVR ATmega. 8 CPUat least 7. Bytes application RAM available. RAM available on the AVR ATmega. CPUAbout 2. 0k Java opcodes per second on 8 Mhz AVRNative classes include javalangObject object handlingjavalangSystem IO handlingjavaioPrint. Stream console outputjavalangString. Buffer string processingasuro asuro controlNative support for LCDs, AVR io etc. What the Nano. VM is and what it isnt. There seems to be some confusion about what the Nano. VM is and can do. It is not a full featured Java VM and it will never be. It will. always be limited to a small subset of the java language and the. Furthermore, it is not meant to replace C as the standard way. It is less flexible and has a lower. C or assembler programs. The Nano. VM is a way to provide a limited but controllable. With most of. the most hardware specific code being part of the Nano. VM itself, the. user can focus on the application itself. If a user is given a device. Nano. VM he is not required to think about the. Furthermore, he doesnt need any target specific. All he needs is a standard java compiler and. Nano. VMTool which itself is written in java. Thus, the whole. development chain works on any device that has a java compiler and can. With the hardware abstraction the Nano. VM provides, the. The same java compiler and the same Nano. VMTool can. be used with any Nano. VM based system running on any type of. Supported devices. Although the Nano. VM can be used for various purposes, it somehow. The latest. Nano. VM supports The Asuro was the first robot supported by the Nano. VM,it was then ported to the ct Bot,and the Nibo was even designed for Nano. VM support. Files. The Nano. VM is distributed in three parts The Nano. VM itself to be installed on. Asuro, a Converter and Upload tool to convert java class. Nano. VM format and to upload them onto the target and finally some. Asuro. Installing and using the Nano. VMThe Nano. VM is a complete replacement of the 8k. Bytes program code available. AVR CPU see figure. Unlike the original Asuros bootloader, which. Nano. VM uses the EEPROM to store. The usual C development chain translates any application. AVR specific code. Unlike this, the Nano. VM. works with portable. Javabyte code which is. Nano. VM during runtime. Some AVRs like e. ATmega. 8 that comes with the Asuro are. The pre installed bootloader. CPU. The Asuro. e. IR. transmitter delivered with the Asuro. The Nano. VM cannot be installed. Instead the complete contents of the AVR CPU including the. This requires the CPU to be placed in. STK 5. 00. Alternally, a simple interface photo of installed interface allows you to. Asuro. In both. cases the connection to the PC is done via a special AVR ISP programming cable see. PCs. printerport. The Nano. VM itself is then being uploaded onto the chip. Ponyprog or UISP. Since theres currently no way of making a backup of or to restore the. ATmega. 8 shipped with the Asuro it is strongly. ATmega. 8 CPU for the Nano. VM. New. unprogrammed AVR ATmega. CPUs are cheap The Nano. VM itself contains its own bootloader. Once it is installed in the. Asuro it can use the IR interface to install Java. A special Nano. VM tool formerly Convert tool is available. Nano. VM to uplaod Java programs to the Asuro. Download. As of 91. Manual De Talla En Madera Pdf'>Manual De Talla En Madera Pdf. Nano. VM incl. the source code and the binaries. The rxtx installation script is meant to simplify the. PCs. This extension is. Nano. VMTool to access the PCs serial port to directly. Nano. VM equipped device. Find the latest version at the Nano. Panama Its Not Over Ep. VM download page at sourceforge. Old versions. If you are interested in the latest changes and are interested in. Nano. VM development, you can take a look at the. Nano. VM CVS repository. Your contribution. You want to contribute Great Here are some of the things that would. Nano. VM. A Nano. VM emulator that emulates the AVR, asuro, or other native. PC would allow to e. A simple graphical programming layer above java would allow even. A simple. drag n drop gui allowing to build simple flow control diagrams and. You have a better idea You are welcome. History. Version 2. Nano. VM 1. 4, Nano. VMTool 1. 4. A new and more reliable upload protocol by Oliver Schulz. Code cleanups by Oliver Schulz. Float and 3. 1 bit integer support by Nils Springob. Various small bug fixes. Version 2. 00. 51. Nano. VM 1. 3, Nano. VMTool 1. 3. Switched to rxtx for java rs. Oliver Schulz for this hintNano. VMTool now runs under Linux, Windows and Mac. OS. Version 2. 00. Nano. VM 1. 3, Nano. VMTool 1. 2. Generic native LCD methods Example configuration for Atmega. Schematics for test boards for Atmega. Atmega. 32. Expanded documentation see wiki german. Version 2. 00. 51. Nano. VM 1. 3, Nano. VMTool 1. 2. Generic ATmega. PWM and ADC Simple Input. Stream support serial inputAdded dup. GPL licensing verified. Version 2. 00. 50. Nano. VM 1. 2, Nano. VMTool 1. 1seperate stack managementfixed Asuro compile. Version 2. 00. 50. Nano. VM 1. 1, Nano. Paper Cup Design Software. VMTool 1. 1initial source releasecomplete VM under GPLTODOWhats leftThe VM itself is finished. It is not a full Java VM. Due to memory limitations, these things will probably never. Asuro and its ATmega. CPU keep in mind, that. Bytes of code memory. The generic. version lacks a complete set of native classes in order to be really. The complete Nano. VM is open source. Due to that, a plugin for. Eclipse might be possible to write. Furthermore, the Nano. VM may easily. be ported to various other AVR based systems. A generic Nano. VM for the Atmel AVR family. It is possible to use the Nano. VM for other projects than the. Asuro. The Nano. VM for Asuro includes Asuro specific native classes. The Nano. VM distribution includes several more generic native. AVR which can e. g. AVRs IO ports, the AD converters, the PWM unit and the serial. These native classes are now included in the source. Several simple examples are included which show how to use. AVR application. The ATmega. AVR capable of running. Nano. VM. Theres not much memory left in its 8k. Bytes flash about. With the bigger CPUs there are AVRs with up to 3. ATmega. 8, even the most complex native. External documentation and discussion. Optical mouse camera Bidouille. OK, so I finally decided to get my hands on the Arduino platform and see what all the buzz is really about. And I must say, Im impressed. This is by far the most developer friendly development platform Ive ever seen. Its main advantages Its simple. The hardware is very simple and uses standard, commonly available components. The software IDE is basic but functional editor window, status window, integrated serial terminal. Thats it. Its reasonably powerful. The Arduino diecimilla that I used is based on the ATMega. MHz. Its based on open source hardware and software If you omit the trademark controversy about the Arduino trademark. The board design is public. This has lead to the creation of several variants and clones Freeduino which contributed to the popularity of the platform. Power, firmware upload and serial communications through a single USB cable. Its expandable. The concept of shields that can be stacked on top of the main Arduino board is genius As a matter of fact, making a small prototyping shield was the first thing I did for this platform. So, a while ago I came across this great optical mouse hack by Sprite. I decided it would be great to do as my first Arduino project beyond the Blinky LED example, that is. First step, dissection of a wireless mouse from a cheap Typhoon wireless mouse keyboard combo. Unscrew it. Look for screws under the pads and stickers on the bottom. My model came with two PCBs which are coupled using a 1. The unusual looking chip in the middle is an ADNS 2. This chip holds a 1. DSP which computes movements from the optical flow of the captured images Underneath the second PCB is the optical bloc with lens and LED collimator Better view of the optics. It was manufactured by Agilent technologies or its spinoff Avago technologies AgilentAvago provides the optical block, motion sensor and LED assembly of most optical mice. Heres how everything stacks up OK, so going this far was not really necessary, I just like to see how things are made and to take macro shots of it Going back to the ADNS 2. Arduino, you need to make the following connections ADNS 2. Arduino pin. 1 SCLKDigital 2. SDIODigital 3. 15 PDDigital 4. VDD5. V1. 2 GNDGNDAll the other pins should have the required circuitry already on board, so they need not be touched. In my case however I had to wire the LED, too, since it was not directly wired to VCC but switched on by the controller. This is because it was a wireless mouse build with a chip intended for a corded design, so they had to diverge a bit from the reference design. I was lucky, the sensor board had a female header which I could use to wire everything, so I did not have to solder anything. But you probably will. Ignore the prototype board on top of the Arduino, you can wire everything directly to the Arduino headers. You can download the Arduino script and the PC program below. The program is in java and requires the RXTX library to be installed. You need to get the RXTX 2. OUT Suns Comm. API namespace gnu. No, as of 2. 00. 8 java still does not natively support the serial port. It should work with Linux, Mac OS X and Windows, but I only tested it under Windows. Addendum RXTX seems to have been discontinued and the website is now a blank page. I suggest using Pure. Java. Comm instead, it works great and does not require to be installed directly in the JRE. The project may need to be modified a bit to adapt it to this library. Once RXTX has been installed you can run the jar file simply by double clicking on it or in the command line like this java jar mousecam. The window will show up. Simply select the serial port your Arduino board is connected to and click Connect. The sensor data will be drawn on screen in real time. You can increase or lower the number of lines to read from the sensor in each run. The frame dump routines are a bit slow so if you dump a full frame youll get only about 5 fps. If youre moving the mouse at the same time, there will be severe shearing artifacts and the scan will not look pretty. In this case, reduce the capture window to 2 or 3 lines. If you move the mouse while the application runs you can scan the surface below it. As you can see the quality is unmatched. You need to keep the mouse orientation exactly the same while scanning since there is no way to detect rotations, and this distorts the capture even more. Heres how a white sheet of paper, the fabric from my pants and the small print on a 2. Alright, what else can we do with this very nice sensor Looking at the datasheet something struck my eye the sensor is sensitive in a wide range of wavelenghts, from ultraviolet to infrared. So why not replace the standard red LED by an RGB LED I skip all the gory details, heres the not so impressive result I was attempting to scan a detail of a 2. Ive had several issues with the sensor when switching between diferent colors. The sensor would be nearly saturated or very dark on the border of the frames. I solved the problem by adding a 1. Another issue is that the sensor seems to use some kind of automatic aperture control, which makes it impossible to balance the colors. Below is what the same detail looks like with a real camera. We can kinda recognize the blue lines If you wish to reproduce this amazing result who wouldnt, you need to do the following Remove the red LED and replace it by the RGB LED. Connect the LED cathode to pin 1. ADNS 2. 05. 1 the LED needs to be common cathode. Connect the RED anode to Digital pin 5 on the Arduino. Connect the GREEN anode to Digital pin 6 on the Arduino. Connect the BLUE anode to Digital pin 7 on the Arduino. Load this script on the Arduino. Run this horribly hacked version of the java program above to support colors.