SUNKEE 10pcs 5mm 940nm LEDs infrared emitter and IR receiver diode 5pairs diodes

UCTRONICS 0.96 Inch OLED Module 12864 128x64 Yellow Blue SSD1306 Driver I2C Serial Self-Luminous Display Board for Arduino Raspberry PI

Cutequeen 31 Values 1% 775 pcs,RoHS Compliant Resistor Kit x 25pcs =775 pcs (0 Ohm - 1M Ohm) 1/4W Metal Film Resistors Assortment

GenBasic 40 Piece Female to Female Jumper Wires (8 Inch)

AIRSUNNY three Legs 5 pairs Infrared Diode LED IR Emission and Receiver

eBoot 30 Pieces Photoresistor Photo Light Sensitive Resistor Light Dependent Resistor 5 mm GM5539 5539

ELEGOO for Arduino Nano V3.0, Nano Board CH340/ATmega328P Without USB Cable, Compatible with Arduino Nano V3.0 (Nano x 3 Without Cable)

ARDUINO Nano [A000005]

uxcell 50pcs 10K Ohm 0.05W 3435B NTC Thermistors Resistor MF52-103

Gikfun 5mm 940nm LEDs Infrared Emitter and IR Receiver Diode for Arduino (Pack of 20pcs) EK8443

(Pack of 25 Pieces) MCIGICM lm324n Quad opamp lm324 Quad op amp