Quantity   Component name
1 × 1uF, 16V capacitor Ceramic monolithic or electrolytic, 0.1" lead spacing
4 × 0.1uF capacitor Ceramic monolithic, 0.1" lead spacing
1 × 0.47uF capacitor (X7R dielectric temp. coefficient) Ceramic monolithic, 0.1" lead spacing
2 × 10uF, 50V capacitor Aluminum electrolytic, 0.1" lead spacing
1 × 6-pin screw terminal block 0.2" (5.08mm) pin spacing
5 × T1 (3mm) LEDs 1 power/status, 4 output indicators (any color)
3 × T1-3/4 (5mm) IR LEDs High brightness Lumex OED-EL-1L2 or similar for floor sensing
1 × Axial ferrite 100-150 Ohm impedance
1 × 4-pin inline header socket 0.1" pin spacing for ultrasonic distance sensor module
1 × 6-pin R/A square header For PICkit-4 ICSP programming
1 × GCT4085-GF-A USB 2.0 Type C socket Through hole type, for both power and programming
1 × PS1240P02BT piezo beeper 12.2mm lead spacing
4 × T1 IR phototransistor Lite-On LTR-4206E or similar
8 × 100 Ohm, 1/4W resistor 5%, generic
5 × 470 Ohm, 1/4W resistor 5%, generic
6 × 1.0k Ohm, 1/4W resistor 5%, generic
4 × 4.7k Ohm, 1/4W resistor 5%, generic
1 × 10k Ohm, 1/4W resistor 5%, generic
2 × 5.1k Ohm, 1/4W resistor 1%, generic
5 × 6mm PC-mount pushbutton Omron B3F-1000 or similar
1 × 20-pin DIP IC socket 0.3" spacing, dual leaf contact
1 × 16-pin DIP IC socket 0.3" spacing, dual leaf contact
1 × PIC16F1459-I/P microcontroller 20-pin PDIP
1 × SN754410NE Dual H-bridge motor driver 16-pin PDIP (better replacement for L293DNE)
1 × LF50ABV low drop-out 5V regulator TO-220
1 × TSOP38238 38kHz IR demodulator Optional, for IR data reception
1 × HC-SR04 ultrasonic distance sensor module 4-pin type
1 × #4-40 x 1/4" machine screw or similar to mount regulator
1 × #4-40 nut or matching nut for machine screw to mount regulator
1 × 4-AA battery holder for robot applications