Teensy 4.0 not working with prop shield to drive led strip

ATX_dude

New member
Hey all, I am working with the Teensy 4.0 to drive an led strip. When driving the clk and data pins directly to the strip everything works fine. However I ultimately wanted to use the prop shield (low cost version) to drive them but when I put the Teensy on the shield I get nothing on the output clk and data pins. I am using pin 11 for data and pin 13 for clock as instructed. The weird thing is that I have some old Teensy 3.2 devices laying around and they do work on the shield. Does anyone have any idea why it works with the Teensy 3.2 but not the 4.0? Any ideas are appreciated.
 
Never mind. You have to drive pin 7 on the shield high to enable the high speed drivers. Problem solved - operator error.
 
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