Youtube demo is here:
Use an inexpensive Light Dependent Resistor to control servos with a glove interface.
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Youtube demo is here:
FlexSensor.inoArduino sketch for controlling servo with one servo. Add to sketch for multiple sensors and servos.ino - 828.00 bytes - 01/14/2023 at 02:36 |
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BaseJoint.stlInsert flex tube into both pieces and align on back of finger before gluing. Clamp and Glue to the glove with foaming glue like Gorilla Glue. Fill finger with piece of pipe to support the piece while curing.Standard Tesselated Geometry - 52.52 kB - 01/14/2023 at 02:31 |
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2ndJointRing.stlInsert flex tube into both pieces and align on back of finger before gluing. Clamp and Glue to the glove with foaming glue like Gorilla Glue. Fill finger with piece of pipe to support the piece while curing.Standard Tesselated Geometry - 55.36 kB - 01/14/2023 at 02:31 |
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Look at the files and video for indications of how to build the sensor.
LED at base end, LDR at the tip end. Wire the LDR like a common Light Dependent Resistor circuit on an Arduino with 1K Ohm resistor grounding the LDR with signal wire going to Analog Pin 4 and other side of LDR going to VCC.
After the sensor is built, it is encased in heat-shrink tubing to eliminate ambient light.
See Arduino sketch for further details of the circuit.
Print the sensor supports. The ring-style support goes at the end of the finger and is slightly larger in diameter to allow the tube to slide in the support as the finger flexes.
For gluing, it may be useful to fill the finger with something like a dowel to give some rigidity to the finger to press the support against as the glue is setting
Foaming glue like Gorilla brand was used because it expands as it cures, making a secure bond to the fabric of the glove.
Wires of sufficient length were soldered to the ends of the LED and the ends of the LDR to lead back to the Arduino.
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This is incredible! Such a nice way of approaching it. Was this something you came up with to help your student, or was it an invention of theirs? If it was, keep an eye on that one! If not, congratulations on a really nice idea!
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Thanks for your kind comments Ian. I was approached by the student's teacher to see about automating the hand sculpture the student had designed. I'm a fan of the underappreciated LDR and always promote its usefullness to students in my CompScii classes.