2x Female 40-Pin Long Strip

Characteristic: -Length: 20cm
-Quantity: 40 cables
-Mono Dupont connectors on both ends
-Compatible with 2.54mm female connectors
-High quality and good working condition
-Easy to install and use

The piezoelectric buzzer has a simple structure in which a ceramic piezoelectric disk is affixed to a vibrating plate. An alternative voltage applied to this element will cause a contraction or diametrical expansion of the element. This feature is used to fold a vibrating plate, which generates sounds. 2x Passive Buzzer 5V features:

- Input voltage: 3V to 12V
- Diameter: 12mm
- Height: 7.5mm
- Pin spacing: 6.5mm
- Impedance: 16 Ohm
- Working frequency: 2 to 5 KHz
- Quantity: 1 unit

1 Channel 5V Relay Module.
This module can be directly controlled by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL).
Relay Module 1 Channel 5V 10A features:

- Channel: 1
- Supply Voltage: 5V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- LED indicator
- Dimensions: 30x 54mm

Thermal Pad Silicone Heat GPU CPU 130x20x1mm. The tapes are thermally used as an application of a thermal paste.

It allows controlling up to 2 direct current motors or a bipolar stepper motor. It also allows to control a unipolar stepper motor configured as bipolar.
Ideal for projects with ARDUINO.
You can use it with PIC, AVR, STM32.
It incorporates a switch for the connection and disconnection of the entire module.
L298N Motor Drive Controller Board Module Dual H Bridge DC with interruptor features:
- Minimum operating voltage: 5 V
- Maximum operating voltage: 35 V
- Maximum current: ± 2 A
- Logic voltage: 5V
- PWM signal inputs for speed control
- Outputs: for 2 DC motors or for a bipolar stepper motor
- Measures: 43x43x24 mm
Helpful Links:
Operation of the robot by Infrared / Operation of the robot by Bluetooth />

This module is a three way switch ( COM, NO and NC ) that uses the intensity of the ambient light to control directly the load at the output. Its adjustment potentiometer allows changing the sensitivity and setting the start threshold of the relay. The relay is energized when it is darker than the threshold.

3x PCB Circuit Broad Marker Pen for printed circuits features:
-Ideal to write on almost any flat surface, such as PCBs, glass, plastic, metal, etc.
-Resistant to sunlight
-Permanent resistance ink to acid attack
-Quantity: 3 units
S 0.4mm - 1 unit
M 0.6mm- 1 unit
L 1.0mm - 1 unit

ESP32 processor development board with WiFi and Bluetooth (BLE) compatible with Arduino Uno shields. It is much faster than the ESP8266 processor (NodeMCU and the like) . Wemos D1 ESP32 R32 WROOM-32 WiFi and Bluetooth features:
Power: 5-12VDC WiFi 802.11 b / g / n / e / i (802.11n up to 150 Mbps) Bluetooth v4.2 BR / EDR and BLE. Compatible with Arduino Uno shields. 6 Analog input. 20 digital inputs / outputs (3.3V) (with PWM functions, interrupt). UART, SPI, I2C communication. Size: 68Ã — 53 mm Micro USB connection. 4Mbytes Flash Memory 520Kb Clock: 240Mhz (a core dedicated to WiFi processing) Temperature: -40C + 85C Current: 250mA (max) Current in saving mode: 0.15mA Operating current: 20mA (without WiFi) Useful links for Arduino / Raspberry programming and projects with Arduino /