I'm trying to make a stationary TV remote control and I'm not noticing the difference between using 12 IR LEDs and 1 IR LED. I still can't get the TV (for example) to get the IR message if the LEDs are not facing the IR sensor on the TV. Whereas the TV remote I already have works fine if its facing the opposite direction. Do I need to use more LEDs or different IR LEDs entirely? The LEDs I'm using are TSAL7400.
The LEDs are arranged like so (12 instead of 20 that are in the picture):
I've checked and each LED is getting 100mA when they are on so they are definitely all turning on.