Intrinsic_Eb
Member
Hey guys,
So I am currently in the process of putting together a large Octows2811 based project and I have hit a hiccup. I probably fried one of my teensy 3.0s. I am posting this as to make sure I am not missing a simple fix.
My setup consists of a 300W 5V power supply hooked up to 8 lines of ws2811 LED strips (120 LEDs per line). Connected to this I have a small driver board that sends out the signals to the LED strips. The driver board is powered by the 5V supply. The diver board consists of a teensy 3.0 running the Octows2811 code, hooked up to a 74HCT245 buffer chip and resistors that lead to the LED strips. A pretty basic setup.
However, yesterday when I started up the display I saw a small spark. The spark was nearby where the power line hooks up to the driver board. I then noticed that the teensy was darn hot. After quickly unplugging the display and checking my connections I found some loose wires. However none of them seemed to be touching anything they were not supposed to. I swapped the maybe fried teensy with another and it worked fine. Then tonight I tried applying just the power and ground connections from a 5v wall wart I have to the suspected teensy and again it got darn hot. I am pretty sure this chip is fried but I want to be sure.
If I shorted across the chip is there any fix or is it a goner? Also is there enough of a voltage due to the start up of the power supply to jump a few millimeters? I really don't want this to be a reoccurring thing.
Thanks for the help!
So I am currently in the process of putting together a large Octows2811 based project and I have hit a hiccup. I probably fried one of my teensy 3.0s. I am posting this as to make sure I am not missing a simple fix.
My setup consists of a 300W 5V power supply hooked up to 8 lines of ws2811 LED strips (120 LEDs per line). Connected to this I have a small driver board that sends out the signals to the LED strips. The driver board is powered by the 5V supply. The diver board consists of a teensy 3.0 running the Octows2811 code, hooked up to a 74HCT245 buffer chip and resistors that lead to the LED strips. A pretty basic setup.
However, yesterday when I started up the display I saw a small spark. The spark was nearby where the power line hooks up to the driver board. I then noticed that the teensy was darn hot. After quickly unplugging the display and checking my connections I found some loose wires. However none of them seemed to be touching anything they were not supposed to. I swapped the maybe fried teensy with another and it worked fine. Then tonight I tried applying just the power and ground connections from a 5v wall wart I have to the suspected teensy and again it got darn hot. I am pretty sure this chip is fried but I want to be sure.
If I shorted across the chip is there any fix or is it a goner? Also is there enough of a voltage due to the start up of the power supply to jump a few millimeters? I really don't want this to be a reoccurring thing.
Thanks for the help!