Atmega328p-au-tqfp-32-microcontroller Chip - 8-5.5v Operating Range, 32kb Flash, 1kb Eeprom, 2kb Sram, 6 Pwm Channels, 8 Adc Channels, I2c & Spi Interfaces

74HC595 IC Shift Register Serial In Parallel Output - 15 LSTTL Drive Capability, 2.0 to 6.0 V Range, High Noise Immunity, Improved Quiescent Power

Ultrasonic Distance Sensor - Metal & Plastic, Operating Voltage: 5V, Range: 2 cm to 400 cm, Resolution: 1 cm, Wide Angle, Compact Design, No External Circuit Required

Electric Temperature Sensor - Metal and Plastic Construction, -55 to 125 Degree Usable Range, 3.0V to 5.5V Power Range, 1-Wire Interface, Unique 64-Bit ID

PIR Motion Detector Sensor - Metal & Plastic, Compact Board with Three Pin Interface, 5V-9V Input Range, 60s Setting Time, 6m Detection Range, Wide Angle Lens

pH Sensor - Metal & Plastic, 43x32mm Size, 0-14 pH Range | Industrial & Commercial Application, BNC Connector, Gain Adjustment Potentiometer, Power Indicator LED

Electric Encoder Sensor - Metal & Plastic Design | Industrial & Commercial Application

Arduino Door Lock Sensor Magnet Proximity Switch Reed Sensors - Metal, Plastic, 27 x 14 x 8 mm, Alarm-On-Broken, 10W Rated Power | SMD Mounting, 24 AWG Lead, 100V Voltage

Alcohol Sensor Module - Metal Construction, 5 Volt Voltage | Industrial & Commercial Application

Triple Axis Compass Magnetometer Sensor Module - GY-273, IIC Communication, 1.3-8 Gauss Measuring Range | Industrial & Commercial Use, Metal & Plastic Material

3 Sensor Line Following Array - Metal & Plastic, 5V DC Input | Ideal for Basic Line Following and Grid Navigating Robots, Easy Digital Outputs