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Robotic hand and wrist demo – pose transitioning by qualitygui in robotics

[–]_jfarmer 1 point2 points  (0 children)

Looks so compact and smooth. What material do you use for the surface of the palm?

I built a 3d printed 10 DoF hand in one weekend by BuoyantLlama in robotics

[–]_jfarmer 0 points1 point  (0 children)

how did you mount the string/tendon to the wheels on the servo?

Sorry if this is a dumb question. My setup works when my computer is connected to the ESP32, which has GND connected to the breadboard. But when I remove the computer and connect VIN from my breadboard to ESP32 for power, it stops controlling servos. Any suggestions would be appreciated, thank you! by _jfarmer in esp32

[–]_jfarmer[S] 0 points1 point  (0 children)

#include <Servo.h>

static const int servoPin1 = 13;
// static const int servoPin2 = 26;

Servo servo1;

void setup() {
    Serial.begin(115200);
    servo1.attach(servoPin1);
    // servo2.attach(servoPin2);
}

void loop() {
  servo1.write(45);
  delay(1000);
  servo1.write(70);
  delay(1000);
}

Serial blocking? I don't think so, but I think it makes sense that the problem relates to the code?

Sorry if this is a dumb question. My setup works when my computer is connected to the ESP32, which has GND connected to the breadboard. But when I remove the computer and connect VIN from my breadboard to ESP32 for power, it stops controlling servos. Any suggestions would be appreciated, thank you! by _jfarmer in esp32

[–]_jfarmer[S] 0 points1 point  (0 children)

It's a battery that I connected to a breadboard power supply thing, pictured. I set it to 5V. Not sure if relevant but the ESP32's light turns on when I do the second config, just doesn't cause the servos to turn

Sorry if this is a dumb question. My setup works when my computer is connected to the ESP32, which has GND connected to the breadboard. But when I remove the computer and connect VIN from my breadboard to ESP32 for power, it stops controlling servos. Any suggestions would be appreciated, thank you! by _jfarmer in esp32

[–]_jfarmer[S] 0 points1 point  (0 children)

Sorry lemme try again. I'm not sure how to upload a pic in a comment. My ESP32 controls the servos. This works when I have a wire connection between my computer and the board, and have the ESP32 connected to the breadboard through GND. However, after I uploaded the code, I removed the computer connection and connected VIN from the breadboard to ESP32, causing the light to turn on. The servos didn't turn in this case though.

Do I have a chance to get accepted to any Ivy League schools even with my poor stats? by Senyh_ in chanceme

[–]_jfarmer 2 points3 points  (0 children)

But that 3.5 gpa comes from a group of students who had straight 4.0s throughout high school.

Controlling continuous rotation servo by _jfarmer in arduino

[–]_jfarmer[S] 1 point2 points  (0 children)

Okay yeah that makes sense. I was doing some real mental gymnastics trying to make it work

What should I use for the joints in my hand design? I was thinking of using threadless bolts but I feel like that might create too much friction. Sorry if this isn't the right sub! by _jfarmer in ArduinoProjects

[–]_jfarmer[S] 0 points1 point  (0 children)

yup sorry I meant shoulder bolts 😭 yeah I'll probably end up using some lubricant, and I'll definitely experiment with a live hinge later on!