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u/d_test_2030

r/arduino r/HPOmen r/statistics r/FTC r/SamsungOdyssey r/UsbCHardware
Controlling GoBilda servo motor with arduino PWM and servo easing library - 10 degree difference
▲ 1 r/FTC+1 crossposts

Controlling GoBilda servo motor with arduino PWM and servo easing library - 10 degree difference

Hi. I am trying to control a gobilda servo motor (600-2400µsec, 189°, listed as 180 degrees however) using the Servo Easing library. It doesnt matter whether I move 90 degrees or 180 from one position to another, it will always miss the target by about 10 degrees. I was wondering if this could be related to the fact that the range of motion is 189 but the servo is marketed as 180?

As you can see in the code snippet, I mapped the motion range to degrees.

Link to the servo:

https://www.gobilda.com/proton-servo-steel-gears-180-rotation-torque-ratio/

  protonServo.attach(
    9,
    0,
    600,
    2400,
    0,
    189
  ); 

protonServo.setEasingType(EASE_CUBIC_IN_OUT);

moveServo(20);moveServo(110);//should move 90 degrees but only moves about 80

moveServo(0);moveServo(180); //should move 180 degrees but only moves about 170
u/d_test_2030 — 10 days ago
▲ 0 r/statistics

[Question] Are repeated Anova measurements suitable for my use case?

Hi, I'd like to expose each test user to four different environments and test the environments' capability to induce a stress reduction. In each environment I will do the following: 1. Induce stress. 2. Then measure: Self-Assessment Manikin (SAM) and State–Trait Anxiety Inventory (STAI). 3. Exposure to the respective environment 4. Take SAM and STAI again.

  1. Are repeated Anova measurements suitable for this use case? I guess I'd have to compute the difference of STAI/SAM before and after exposure to the environment, and then use these values as a basis for the ANOVA calculations?
  2. Is a one way anova sufficient to be able to tell which environment aids in stress reduction the most? Or do I need to do a two way?
  3. After gathering the data: what do I do if the data isn't normally distributed or not spherical? Then I'd have to switch to another analysis?
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u/d_test_2030 — 2 months ago
▲ 2 r/arduino

What type of connector on the Dynamixel Arduino Shield is this?

Hi. I'd like to use the UART port on the Arduino Shield in the upper right corner (GND, 3.3, RX, TX) for serial communication. https://emanual.robotis.com/assets/images/parts/interface/dynamixel_shield/pinmap.png

I found out the usb downloader LN-101 cable fits into the port, the module isn't commonly available however. https://emanual.robotis.com/docs/en/parts/interface/ln-101/

Is this some type of JST PH 2.0mm connector?

Also, can I simply connect the 4 pins of the UART port to a USB-C TTL adapter? The adapters commonly have 5 pins however, how would I need to connect them? DTR, RXD, TX, VCC, CTS, GND.
https://www.az-delivery.de/cdn/shop/files/usb-c-zu-ttl-serial-adapter-fur-33v-und-5v-kompatibel-mit-ft232rl-424091.jpg?v=1730181913&width=120

u/d_test_2030 — 2 months ago
▲ 0 r/UsbCHardware

Is my Omen laptop capable of connecting to an external monitor via USB-C only?

I was wondering if Omen 16-wd0800ng laptop is capable of connecting to the USB-C port of an external monitor via its USB-C port (so USB-C cable only with no HDMI involved!). Specification says: 1 USB Type-C® 5 Gbit/s Signal rate (USB power, DisplayPort™ 1.4, HP Sleep and Charge) but there is no display port logo printed next to the port on my laptop.

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u/d_test_2030 — 3 months ago
▲ 1 r/HPOmen

Can I connect to an external monitor from USB-C port on my Omen 16-wd0800ng laptop?

I was wondering if Omen 16-wd0800ng laptop is capable of connecting to the USB-C port of an external monitor via its USB-C port? Specification says: 1 USB Type-C® 5 Gbit/s Signal rate (USB power, DisplayPort™ 1.4, HP Sleep and Charge) but there is no display port logo printed next to the port.

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u/d_test_2030 — 3 months ago
▲ 2 r/arduino

Controlling four servo motors - Need help regarding weight & external power supply

I'd like to control 4 servo motors (MG996R or Jamara Servo High End MG 13/18) with high actuating power, not simultaneously however! They should each be able to carry and rotate a light wooden serving tray (30-50 cm in diameter) with objects on it.

1. Would these servos be capable of handling this (in case I support the serving tray somehow around the edges) or do I need even stronger servos?

2. In terms of power supply:
Could I use an universal wall power adapter (which yields different voltages) and aditionally a power DC jack to provide power to the servos?

Example for universal power adapter: Amazon.de
Example of DC power jack: Amazon.de

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u/d_test_2030 — 3 months ago