PCB for IR LED Ring

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The IR LED ring is a component for this project that is used by the camera attached to POLARIS in order to emit IR light to IR reflective AR tags and localize indoors. The schematic of the IR LED ring is fairly straight forward, which consists of 48 IR LEDs and 8 resistors in order to prevent any issue from occurring.

IR_LED_ring_schematic

The number of IR LEDs used to design the IR LED ring was based off the prototype IR LED ring which consisted of approximately 35. The number of IR LEDs was increased for this design in order to increase the radius of the IR light that will emit on the IR reflective AR tags.

With the aforementioned schematic of the IR LED ring, the next step was to implement it onto a PCB, shown below:

IR_LED_ring_PCB

The software used to design the PCB of the IR LED ring was KiCAD. Making sure the connections are correct, the next step was to print the actual PCB and populate it with the actual components.