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  • Bus Pirate
    More functionality than I expected
    Review by David
    I bought the Bus Pirate for I2C development work but found it has some other very useful functions: it works as a digital frequency generator (1 kHz-4MHz) and logic analyzer (using SUMP software).
    (Posted on 9/3/14)
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The Maritime RobotX Challenge Starts Today!

Posted on October 20, 2014

By Jeffrey Arcand & filled under Competitions, Environmental, Industry, Prototypes.

The AUVSI Foundation is well known for running many international student robotics competitions. The RoboSub competition is one of the largest outdoor international competitions that has been running annually since 1998. In this competition, university students must build a fully autonomous robotic vehicle to complete an obstacle course underwater. In 2008, the AUVSI Foundation started [...]
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Calling All Robot Inventors!

Posted on October 14, 2014

By RB1 & filled under RobotShop.

The RobotShop Technology Accelerator Program is in full swing and we are looking for new inventors. We have a new, fresh look for the Accelerator page and are here to help you commercialize your robotic product / invention. What is the Accelerator Program you ask? If you are an inventor and/or developer but you lack [...]
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UAV Flights / Restrictions / Suggestions

Posted on September 16, 2014

By Coleman Benson & filled under Drone, Industry, Unmanned Aerial Vehicles.

Drones / UAVs are becoming very popular; the onboard flight controllers are increasingly intelligent and capable, prices for UAVs are dropping and people of all ages are becoming involved. Even small UAVs which fit in your hand can easily reach several hundred feet above the ground and the technology has quickly surpassed any regulations which [...]
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RobotShop Among the Fastest Growing Companies in Canada, 3rd Year in a Row

Posted on June 12, 2014

By RB1 & filled under RobotShop.

For the third year in a row, RobotShop is among the fastest growing companies in Canada, ranking 186th according to the 26th Annual PROFIT 500 ranking. In 2013, RobotShop was ranked 151st, while in 2012 we were ranked 63rd. As a comparison, Industry Canada reports there are around 1.1 million active businesses in Canada. Despite [...]
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Neato Botvac 80 Unboxing

Posted on May 16, 2014

By Julie Gendron & filled under Domestic, Vacuum.

We received our first batch of the new Neato Botvac 80. Unfortunately, they are now all gone and did not stay in our warehouse for very long. We are currently waiting on a new batch from Neato. But, for those who are wondering which robot vacuum to choose, we have unboxing pictures for you as [...]
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4
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Thanks your reply , have you use Arduino to control dmx led lighting ,such as 512 signal dmx led strip ,if it need to change 512 signal to SPI signal ?
2014-08-22 01:35 by Alanwang
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Thanks for letting me know. I just gave it a try. its nice having to add the SPI switches within the code
2014-08-06 23:43 by Philtkp
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Again you probably already know this, but he renamed the optimized library. I also retested with my modified version of your code, with the new library name and with all of my SPI switching hacks as this stuff is built into the new SPI code...
2014-08-06 10:04 by kurte
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... also using 1.20RC2. If you noted in his release notes, That version of ILI9341 is not the fast version, but back to the Adafruit version, with the SPI transaction stuff added. Not sure if anyone else up here is interested in the SPI stuff, but Paul (Teensy) is working with the Arduino people to ...
2014-08-05 10:37 by kurte
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... You could also use the Smart Servo Controller for Arduino which has its own microcontroller that communicates with the main Arduino using SPI bus. A library is provided in the Useful Links section that provides a convenient API for controller Dynamixel servos specifically. Hope this helps,
2014-08-04 15:13 by jarcand
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... that I hacked on earlier to work with the Adafruit 2.8" tft with touch and it runs :0 TD-Assembled-with-shields.jpg As you can see the SPI output is working and it also responds to the touch input, so I know at least some of the card is working... I will do some more testing over the ...
2014-07-27 22:54 by kurte
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... only measure Analog values up to 3.3v. There are a few Analog only Input pins and these pins are not 5v tolerant. Also it has 3 USARTS, 2 I2C and SPI... Or again could refer them to the PJRC site Kurt
2014-07-24 21:29 by kurte
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Hi again, I tried it and ran into several issues with display/touch. The first main one is that it is not setting the SPI to the right set of registers when it you are touching things... Main issue is in: SelectedBtn I hacked it up to look like: void SelectedBtn(int x1, int y1, int ...
2014-07-21 10:36 by kurte
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I have tested the APA102 APA104 LED CHIP by madrix control ,
https://www.youtube.com/watch?v=j3sI3cTNnwE
now i want to know how to make apa102 apa104 on arduino fast SPI or Propeller micro-controller
if APA102 support by FastLED2.1 branch?
2014-07-18 23:28 by Alanwang
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... number of IO pins. But the Leonardo gives you 12 analog pins, so still could do all of the analog stuff, could use the one Usart for XBee and use SPI to talk to the TFT display... Would be a good setup... But again currently I am happy with Teensy! Kurt
2014-07-03 12:54 by kurte
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Thanks, may want to try one additional save/restore of registers, that may improve speed and that is the MCR register which controls how the SPI works... Will try that out in a little bit. Kurt Edit: I updated the save/restore functions to save and restore the SPI MCR. Could upload new version ...
2014-06-10 16:38 by kurte
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... machine), that if you use both at the same time, the display does not work... Will hack your up and make it work again, by remembering some of the SPI library registers and restoring them at the right time for the two hardware SPI's Kurt Edit: I played with your program, to get it to work with ...
2014-06-10 09:14 by kurte
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... 2) I think there is another version of the gfx library that does run faster. 3) Update UTFT/UTouch - a) Speed up the libraries, to a minimum of SPI library. b) Build a version of UTouch interface to talk to the STMPE chip 4) add option to STMPE library to run in slow motion... May try that anyway... ...
2014-06-09 12:42 by kurte
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... the shield to connect it up to Pin 7. I am thinking I may not do that, but instead, update their code that if the Interrupt is -1, to ask through SPI for the data... Note: I am also wondering about punting here... That is there is no reason can not simply use the STMPE library to do this. May ...
2014-06-08 13:11 by kurte
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... is that these libraries are not compatible with each other (yet). Currently when installed on Arm including Teensy, the read and write to the SPI is done by bit twiddling. i.e. void UTouch::touch_WriteData(byte data) { byte temp; temp=data; cbi(P_CLK, B_CLK); for(byte count=0; count<8; count++) ...
2014-06-08 12:09 by kurte
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