TAOS ,TSL254R-LF , Photodiode Light to Voltage Converter Sensor SKU: TSL254R-LF Price: $1.99
MRD300 Transistor, NPN IR Phototransistors SKU: MRD300 Price: $7.25
TIL311 LED Displays Hexadecimal Display 4-bit SKU: TIL311 Price: $19.99