Putting robotics at your service™

(0) My Cart

Free shipping on orders over $200

SPI


5 Item(s)

Grid List Compare
  • 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)
Back to top

UAV Flights / Restrictions / Suggestions

Posted on September 16, 2014

By Coleman Benson & filled under RobotShop.

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 [...]
Read More

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 [...]
Read More

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 [...]
Read More

The Robowow Secret – The World’s First 3-in-1 Domestic Robot?

Posted on April 04, 2014

By Julie Gendron & filled under Domestic, Lawn Mower, Pool Cleaners, Vacuum.

A few days ago Robomow launched a humorous video introducing a new 3-in-1 Domestic Robot that mows your lawn, cleans your pool and vacuums your floors. They call it the Robowow. The only robot that can vacuum your home, clean your pool and mow your lawn! It’s no secret that creating Robowow proved to be [...]
Read More

Medusa Project – Showcase

Posted on March 28, 2014

By Eric Nantel & filled under Entertainment.

  A few months ago, Eric Pinkel contacted RobotShop/Lynxmotion and myself asking if we wanted to be a consultant for their big VTail Medusa project. Very interested and amazed by the work already done by Eric and his team, we immediately stepped in to help whenever they needed it. As a UAV/Drones enthusiast, I really like to see [...]
Read More
Load more
Back to top
4
replies
196
views
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
123
replies
3362
views
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
123
replies
3362
views
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
123
replies
3362
views
... 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
1
replies
86
views
... 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
94
replies
3960
views
... 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
94
replies
3960
views
... 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
123
replies
3362
views
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
4
replies
196
views
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
123
replies
3362
views
... 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
123
replies
3362
views
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
123
replies
3362
views
... 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
123
replies
3362
views
... 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
123
replies
3362
views
... 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
123
replies
3362
views
... 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
Load more
Back to top
Feedback Form