First time caller, long time listener.
I’ve been planning out a FTIR for the last month as a new hobby and need some help. I’ve picked up my plexi (24” x 18") and have my board and LEDs on order. I’ve read up on what types of LEDs and what to look for.
The LEDs I went with are 40 Liteon LTE5238A (High intensity Gallium Aluminum Arsenide LED @ 880nm). The specifications on them are as follows:
Forward Voltage: 1.3
Forward Current: 100mA
Viewing Angle: 40 degrees
My plan calls for 38 LEDs, 19 on the top and bottom. I’ve included a project plan below for the surface and the full LED specs in case any additional info is needed. What I’m having issues with is that I’m unsure about how to wire this up properly or power it via wall socket. If someone could offer some suggestions on possible resister placements and whether to go with 2 parallel arrays in a series or another way of doing this that would be better, I’d appreciate it.