I've been having a lot of trouble attempting to get Nitinol wire working in my electronic textiles. I was wondering if anyone had any advice? This is really the only forum I could think of asking this on.
I have it controlled by a Lilypad Arduino, but I had to create another circuit to control high current loads (the arduino can't handle them) with a transistor, that grabs the power directly from the power source rather than the Arduino. I'm taking the power from the usb drive of my computer. The problem is, this still isn't enough power, all I can make move is about 2 inches of nitnol and this really isn't enough. I don't even know what I could use as a power source other than the USB, I don't think any of the batteries I'm using have enough current to cause the Nitinol to contract.
I'm not sure what I'm missing here, I don't have much background in electronics, just what I've taugh myself over the last few years while learning how to incorperate them into my textiles.
Any ideas? Any help would be really really appreciated.
Hi, you really need a lot of power to heat up the nitinol wire so that it will change. the power you need depends on many reasons (e.g wire diameter, electrical resistance,lenght ...) so i cant tell how much you need exactly. try a battery with a high current load, for example nimh-types with about 1A or lithium batt...