I built a little robot and I'm playing with controlling its motion using a VS1838B IR sensor and a generic IR remote. My robot runs just fine and my code does what I think I'm telling it to.
The problem I'm having is that the IR sensor seems to be very directional, i.e. it needs to be facing the remote, more or less, in order to receive commands. If the sensor is facing left relative to the robot's motion and I'm on the other side, my signals don't get received and the robot ends up crashing into furniture or walls.
I'm going to try to put the sensor on a vertical stalk to get it up "into the wind", so to speak, but I wonder if anyone has tried putting some sort of collector lens on these sensors?
Or should I graduate to NRF24L01's to control the robot?