WHC 5: poking machine
posted Mar 26th 2007, 01:45 under arduino, tactile, WHC
My first attempt at building an array of stimulator was not very successful. Actually, I would qualify it a total failure. But hey, life is not perfect and we learn from our mistake. So this week's WHC is my second try at builind an array of stimulators to encode information to the user via tactile feedback.
[more text to come tomorrow !]
fixing and encasing the solenoid in the foam block
building the circuit to drive the actuators, now using the 4421 IC instead of regular transistor (works much better)
three actuators fitted with the return spring
foam cover to level the contact surface with the tips
testing position, feeling the poking action of the solenoids
the magnetic force is not strong enough to bring the piston back down
now with 9V, the actuators work as expected (their movement can be controlled by the microcontroller)