RE: Smart Home: Movie Lighting, I Broke it

genebren — Wed, 23 May 2018 17:35:37 GMT

This happens more than you would think. It is sometimes difficult to slow everything down and check everything while we are bringing up a circuit. The light turns on and we think great, time to move on to the next thing. When you are working with known parts, with good specifications, you are far less likely to make this kind of mistake. When using recycled components, we need to do a little more work, like learning it's behavior and in a sense generate our own specifications (i.e. current flow and voltage drop when working with LEDs) so we can be sure that the circuit is stable and all components are operating inside their normal conditions. [mention:8fb233e8974445138ef0af2b63b49f94:e9ed411860ed4f2ba0265705b8793d05] is right, this was a learn-able moment, one that you are unlikely to repeat. We learn from failures as much as from successes, just remember to keep learning.

Gene

RE: Smart Home: Movie Lighting, I Broke it

mcb1 — Wed, 23 May 2018 01:09:15 GMT

And when i Do, some more care will be taken when designing it.

Cheap lesson to learn (small transistor overloaded), and one I guarantee you'll never make again ...

Try a BC337, it can handle 500mA and are cheap/plentiful

Mark