Comments by Brandon

Video: Getting started with the Maestro

Hello. Jim.

In the video from this blog post, we just used some #2-56 screws to mount the Maestro directly to the Pololu RP5/Rover 5 Expansion Plate, but our #2-56 M-F standoffs (or #2-56 F-F standoffs if you prefer) should work to elevate it if that's what you are after. I am not sure what you mean when you say the threaded portion is too big, but if you continue having problems with it, you can post on our forum or email us with more details, such as pictures, and I would be happy to help there.

Brandon

Addressable through-hole RGB LEDs are back

Hello, James.

Yes, you can control each LED individually (each one has its own WS2811 driver, and the 3 channels control the red, green, and blue output).

Separately, please note that LED color data is encoded in a green-red-blue order (GRB), so compared to the WS2812, the red and green colors are swapped.

Brandon

Video: Getting started with the Maestro

Hello, Colin.

Thank you for your suggestion. We will keep it in mind. In the meantime, you can find information about using the Maestro with an Arduino (such as connections and Maestro configuration settings) in the README of our Maestro Servo Controller library for Arduino. Additionally, that library has various examples. If you have additional questions, you can post a request for help on our forum, and we would be glad to help.

Brandon

New product: Tic 36v4 USB Multi-Interface High-Power Stepper Motor Controller

Hello, Kevin.

To use a 6-lead stepper motor like product #1475 as a bipolar stepper motor, you can leave the center tap wires (yellow and white) disconnected as they are not used for bipolar operation.

Brandon

New product: Logic Level Shifter, 4-Channel, Bidirectional

Hello, Kevin.

That is the normal behavior of the level shifter. As described on the product page and in the post above:

• When Lx, the lower-voltage input, is driven low, the MOSFET turns on and the zero passes through to Hx.
• When Hx, the higher-voltage input, is driven low, Lx is also driven low through the MOSFET’s body diode, at which point the MOSFET turns on.
• In all other cases, both Lx and Hx are pulled high to their respective logic supply voltages.

New products: more special servos with position feedback

Hello.

As described in the post above, the feedback wire gives direct access to the servo's feedback potentiometer. It is an analog voltage signal, and it varies linearly throughout the servo's range of motion by a couple of volts.

Brandon

New product: Motoron M3H256 Triple Motor Controller for Raspberry Pi

Hello, Andrew.

The Motoron controllers do not have any special support for processing encoder signals, so while it can be used to drive motors with encoders, you would need to process those signals separately.

Brandon

Sanyo pancake stepper motors with encoders

Hello, Stephan.

We are not aware of any UL or CE ratings for the Sanyo stepper motors.

Brandon

New NEMA 17 stepper motor with optional integrated lead screw

Hello.

The lead screw is built into the stepper motor and is not removable. We carry a few versions of this stepper motor with different lead screw lengths, including this one with a longer 38cm lead screw. Details about the screw can be found in the datasheet located in the "Resources" tab of the product page.

We can also customize the shaft length for special volume orders (typically at least a few hundred units). If you are interested in placing such an order, please email us.

Brandon

New products: G2 High-Power Motor Driver 18v25 and 24v21 (and price drops for other G2 drivers)

Hello. Tao.

The practical voltage range of that pin will depend on your setup, as implied by the sensitivity information you mentioned. When there is no current draw, the CS pin should read ~50mV (the offset). The maximum voltage on the CS pin depends on your particular motor. For example, if the stall current of your motor is 20A, the CS pin would be 450mV when that is reached (i.e. 20A × 20mV/A + 50mV).

Brandon