Hi,
I am working on a high altitude balloon project for my school and my part of the mission is communications and recovery. For the recovery aspect i am using heated nichrome wire to melt through the nylon balloon cord. To do that i need a seperate circuit (5 9v batteries). But i want to be able to control it with our sanguino microcontroller. I have set up a transistor that just uses a switch to control it, but i think there is a better way. The sanguino can only output 5v so i dont know which tranisitor to get. Does anyone have any suggestions?
TIA
I am working on a high altitude balloon project for my school and my part of the mission is communications and recovery. For the recovery aspect i am using heated nichrome wire to melt through the nylon balloon cord. To do that i need a seperate circuit (5 9v batteries). But i want to be able to control it with our sanguino microcontroller. I have set up a transistor that just uses a switch to control it, but i think there is a better way. The sanguino can only output 5v so i dont know which tranisitor to get. Does anyone have any suggestions?
TIA