Devansh’s Robotic Hand

A motion controlled the robotic hand. The robotic hand mimics the movements of the glove. Basically, a cool looking robotic hand.

Engineer

Devansh M

Computer Science / Engineering

Electrical Engineering

Homestead High

Devansh M

12th

Rising Senior

Second Milestone

First Milestone

Description:

Connecting the 4 flex sensors to the 4 servos(when a flex sensor is flexed, it moves the corresponding servo).

Parts:

  • 4x Flex Sensors
  • Arduino Uno
  • 6V Battery
  • Male to Male Jumper Cables
  • Female to Male Jumper Cables
  • 4x Amphenol Clinchers
  • 4x Servos
  • Breadboard

How it Works:

The flex sensor, when flexed, produces a resistance inversely proportional to the bend radius. This is put in a voltage divider circuit, allowing the Arduino analog pins to detect the various voltages. This is converted to a digital output using an ADC which is sent to the servos. The servos then move to the according to positions. The flex sensors are powered by the Arduino, while the servos are powered by a 6V battery.

First Milestone

First Milestone

Description:

Connecting the 4 flex sensors to the 4 servos(when a flex sensor is flexed, it moves the corresponding servo).

Parts:

  • 4x Flex Sensors
  • Arduino Uno
  • 6V Battery
  • Male to Male Jumper Cables
  • Female to Male Jumper Cables
  • 4x Amphenol Clinchers
  • 4x Servos
  • Breadboard

How it Works:

The flex sensor, when flexed, produces a resistance inversely proportional to the bend radius. This is put in a voltage divider circuit, allowing the Arduino analog pins to detect the various voltages. This is converted to a digital output using an ADC which is sent to the servos. The servos then move to the according to positions. The flex sensors are powered by the Arduino, while the servos are powered by a 6V battery.

Electronic Dice

Starter Project

Description: Press the sensor to generate a random number on the electronic dice.   Parts: 7 LED’s Resistors PCB Board Microcontroller Piezo Sensor Battery   How it Works: The battery provides voltage for the system allowing the microcontroller to turn on and off the LEDs. When an individual presses the piezo sensor, the sensor sends a voltage to the microcontroller. The piezo sensor generates a voltage through the piezoelectric crystals inside it, which create electricity when compressed. The microcontroller takes the least significant digit of the voltage, the digit with the least certainty, and considers the value random. The microcontroller then selectively sends voltages to the LED’s, displaying a number, based on the “random” value, on the electronic device.

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