So i have a Hopper, with a comparator. I want it to send a signal only once when it goes empty.
So basically the circuit in blue is a simply a detector for when the mine cart is full, behind that comparator is a redstone leading to a repeater into the powered rail below my hand.
The read arrows indicate a pathway from the hopper to the same circuit. Now i can use a sticky piston to block the completion of the circuit which powers the rail. So, the hopper is full the torch on the other side of the block goes off. I don't care about that part. But when the hopper goes empty, the comparator loses power, and thus the torch can turn on. I want that to send a signal to a circuit that un-powers the piston, allowing the torch to complete the circuit for the powered rail. but after a moment, i want the piston to reengage even though the hopper is still empty.
Okay,
So i have a Hopper, with a comparator. I want it to send a signal only once when it goes empty.
So basically the circuit in blue is a simply a detector for when the mine cart is full, behind that comparator is a redstone leading to a repeater into the powered rail below my hand.
The read arrows indicate a pathway from the hopper to the same circuit. Now i can use a sticky piston to block the completion of the circuit which powers the rail. So, the hopper is full the torch on the other side of the block goes off. I don't care about that part. But when the hopper goes empty, the comparator loses power, and thus the torch can turn on. I want that to send a signal to a circuit that un-powers the piston, allowing the torch to complete the circuit for the powered rail. but after a moment, i want the piston to reengage even though the hopper is still empty.
How can i achieve this?
Thanks
Jaeden "Sifo Dyas" al'Reac Ruiner
An observer attatched to a sticky piston works wonders. If that doesn't work for you, look for designs under the name of 'falling edge detector'.
Creator of Metroid Cubed 3, a Metroid-themed mod! Become a donator today!
The falling edge detector was perfect. My mechanism takes two sticky pistons to achieve, but the end result was exactly what I wanted.
Thanks!
J"SD"a'RR