16GB Class 10 MicroSD memory card with adapter

Male 40 Pin Header 1x40 features: Type: Male, Insertion position: Vertical, Separation between pins: 2.54mm

M18 Inductive Proximity Sensor features:
- Inductive proximity sensor detection switch LJ18A3-8-Z / BX
- NPN DC6-36V
- A Often used for 3D printer bed leveling
- Cylindrical cable type DC 3 cable type (black, brown, blue)
- Inductive sensor type
- NPN NO (Normal Open )
- Detecting distance 8mm
- DC supply voltage 6-36V
- Current output 300mA
- Response frequency 0.5KHz
- Detects iron / aluminum - Operating temperature -25 ° C to + 70 ° C (Non-freezing condition)
- Head diameter 18 mm
- Size 6.9 x 2cm
- Cable length 90cm

The DFRobot heart rate monitor sensor (SEN0213) is used to measure the electrical activity of the heart.

TDA2030A 1X18W Audio Amplifier features:
- Chip: TDA2030A
- Power supply: DC 6V ~ 12V
- Channel type: Single channel - Output power: 1 x 18 W
- Output output: 4 ~ 8 Ohm
- Mono mode
- Size (LxWxH): 31.6 x 23.5 mm

Screen OLED 0.96" B 128x64 Yellow-Blue SPI/I2C features:
- Oled 0.96 "128 * 64 pixel display
- One yellow line and 3 blue lines
- Drive IC model SDD1306
- Power supply: 3V-5.5V
- View angle: 160 degrees
- SPI interface (I2C can be changed)
- Low consumption 0.08W
- Temperature usage: -20 to 70 ºC
- PCB board dimension: 32 x 32 mm
- OLED technology offers high contrast, significantly improves black on the screen and energy efficiency - very low consumption of energy.

Ideal to connect TTL RS232 devices to your PC through the USB port. RS232 USB to Serial TTL Adapter Module - USB to Serial PL2303HX PL2303 features:
> - Compatible PL2303 controller
- 5 pins: 3.3V, 5.0V, TxR, RxD, GND
- Heat shrinkable insulating cover
- Led data transmission indicators
- 2.5A self-recovery protector fuse
- Supported OS: Win ME, Win2003, Win XP, Vista, Win 7
- Weight: 40 gr. (approx.)

28BYJ-48 Stepper Motor 12V + Driver Board ULN2003 features:
- Stepper motor 28BYJ-48 + ULN2003 controller
- The 28BYJ-48 has everything you need to start using motors step by step in your project
- A stepper motor converts digital impulses into small steps of movement in one direction
- The motor also comes with a ULN2003 motor controller card
- Can control two DC motors or a motor with bipolar steps with a maximum amperage of up to 500 mA
- Equipped with state indicator LEDs A, B, C, D
- Engine model: 28BYJ-48
- Phasing Engine: 4
- Operating voltage: 12V DC
- Frequency: 100 Hz
- Operating current: 200mA
- Max Power: 20W
- Winding resistance: 70 Ohm
- Angle per step: 5,625º
- Steps per round: 64

NTC thermistor - with a negative temperature coefficient, i.e. an increase in temperature causes a decrease in resistance.   Thermistor NTC 10.0K 5% MF52A epoxy resin coating resistor features:

Size: 3mm
Rated resistance: R25 = 10.0k
B value 25/85 = 3950°K
Rated power: ‰¤ 50mW
Tolerance:± 5%
Operating temperature: from -40°C to +125°C  Tinned steel wire 25mm