drlava
0
- Joined
- Mar 7, 2007
- Messages
- 1,152
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I preset that driver to 200mA (200 written on the bottom?) so I tested it personally before sending it. Can you be more specific about why things seemed fine at first? Did you test it? What soldering iron are you using, what are all of the power supplies you connected to it? Are you sure your multimeter is OK (have had people fail this way in the past) Something is up with the way you or your equipment is interacting with it, so please give me more details to help troubleshoot. Some power supplies can send voltage spikes, especially if you don't set their voltage before connecting them to the driver.