Comments by Grant

  • Video: Introducing the DRV8835 Dual Motor Driver Kit for Raspberry Pi B+

    Video: Introducing the DRV8835 Dual Motor Driver Kit for Raspberry Pi B+

    - 10 December 2015

    Hello, Dmitry.

    Please check the product page for detailed specifications.

    - Grant

  • PiBot-A: mobile robot with a Raspberry Pi

    PiBot-A: mobile robot with a Raspberry Pi

    - 3 December 2015

    Hello.

    Thanks for the suggestion. We have a few laser-cut plates that would probably work with the Rasberry Pi, but nothing in that exact size. We'll keep your suggestion in mind! For now, you could check out our custom laser cutting service.

    - Grant

  • 37D mm metal gearmotors with encoders and end caps

    37D mm metal gearmotors with encoders and end caps

    - 13 November 2015

    Hello.

    Unfortunately, we do not have that information.

    - Grant

  • New high-current stepper driver carrier with SPI: AMIS-30543

    New high-current stepper driver carrier with SPI: AMIS-30543

    - 8 September 2015

    Hello, Giacomo.

    StepStick is a brand of stepper motor driver carrier that we do not make or carry. The AMIS-30543 stepper motor driver uses different signal inputs than the A4988 and DRV8825 and will probably not be compatible with shields designed for those stepper motor drivers.

    - Grant

  • New product: Sharp 15cm GP2Y0D815Z0F digital distance sensor

    New product: Sharp 15cm GP2Y0D815Z0F digital distance sensor

    - 1 December 2014

    Hello, Marco.

    The detection range on these sensors cannot be set; they are manufactured for specific detection ranges. If you want a shorter range, you might consider the GP2Y0D810 or GP2Y0D805 sensors. If you want a different detection range or want to be able to adjust the range, you might consider using one of the Sharp analog sensors with a comparator.

    - Grant

  • New product: FEETECH FS90R Micro Continuous Rotation Servo

    New product: FEETECH FS90R Micro Continuous Rotation Servo

    - 13 October 2014

    Hello.

    We do not have a datasheet for that servo. If you need additional information, you might try contacting the manufacturer, Feetech.

    - Grant

  • New products: Pololu Carriers with Sharp GP2Y0A60SZLF Analog Distance Sensor 10-150cm

    New products: Pololu Carriers with Sharp GP2Y0A60SZLF Analog Distance Sensor 10-150cm

    - 22 September 2014

    Hello, Ted.

    I am glad you like the new sensor. Mounting holes are something the mechanical engineers always try to push for more of, but making the board compact is often a competing factor.

    The carrier board for the sensor has capacitors to help with noise and should be significantly better than the older GP2Y0A02YK0F. However, the noise is also dependent on your setup so adding additional capacitors might help.

    - Grant

  • New product: Aluminum mounting bracket for NEMA 17 stepper motors

    New product: Aluminum mounting bracket for NEMA 17 stepper motors

    - 25 August 2014

    Hello, Lewis.

    Thank you for the kind words. We designed the brackets to be compatible with the smaller extruded aluminum systems from 80/20 because we have seen several of our customers use them in their projects.

    We enjoy hearing customer feedback and how our customers are using our products; it helps us make design consideration for future products. Feel free to share your project on our forum in the "Share Your Projects" section.

    - Grant

  • TwoPotatoe balancing robot

    TwoPotatoe balancing robot

    - 12 August 2014

    Hello, Nigel.

    TwoPotatoe is a robot built by one of our customers, so I do not have the control algorithm. You might try using the "Leave a Message" feature on the website to contact its creator.

    - Grant

  • LPS331AP pressure sensor test flight

    LPS331AP pressure sensor test flight

    - 24 July 2014

    Hello, David.

    In the email you sent to techsupport, you also mentioned that the noise was about plus or minus 5 feet. I am not sure it is possible to get both the accuracy and response time you are looking for. You could do more averaging to smooth out the reading more, but this will increase the delay before a change in height is detected. For the plane flight in this blog, the averaging was done over several seconds since response time was not an issue. You might have a better chance of using the LPS25H pressure sensor as it is generally less noisy so using it might help, but I would not expect it to be that much better. This blog post about the LPS25H might be useful when comparing the LPS331AP sensor to the LPS25H sensor.

    - Grant

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