Free metal wheel 360° with plastic support for robotics

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. 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

The module is based on a touch sensitive IC capacitive touch switch module (TTP223B).
In the normal state, the module produces Low power consumption. When a finger touches the corresponding position, the module output is high, if not touched for 12 seconds, it switches to low power mode. Digital Touch Sensor B21 features:
- Low power consumption
- Input voltage: 2 - 5.5VDC
- Can replace the traditional touch of a button - Four M2 screws diameter 2.2 mm that position the holes for easy installation
- 3-pin control interface:
1- GND
2- VCC
3- Control signal (output pin)
- Power indicators: Bright green LED when the sensor is on

NRF24L01 Adapter + Socket Wireless Transceiver 2.4GHz features:
- The NRF24L01 + module is powered with 3.3V
- This adapter module includes a 3.3V voltage regulator
- You can connect the NRF24L01 module on it at 5V voltage
- Dimensions of PCB: 25x 18mm
- Quantity: Adapter 1 unit

It has an ATMega328P chip running at 16Mhz with a factory loaded bootloader
Characteristic:
- Microcontroller: ATmega328
- Operating Voltage (logic level): 5V
- Input Voltage (recommended): 7-12V
- Digital I / O Pins: 14 (6 PWM outputs)
- Analog Inputs: 8 (A0-A7)
- DC Current per Pin I / O 40 mA
- Flash Memory: 32 KB (2 KB used by the bootloader)
- SRAM: 2 KB
- EEPROM: 1 KB
- Clock Frequency: 16 MHz
- USB Communication - CH340
- Dimensions: 18 mm x 44 mm

Ideal for building a car with obstacle detector, light follower
Includes battery compartment for 4 AA batteries and ignition switch. (batteries not included) 2WD Robot Smart Car Chassis 2x Wheels DIY features:
- Voltage: 3 to 6Vdc
- Speed without load: 100 RPM to 6Vdc
- No-load current: 90mA to 3Vdc - 180mA to 6Vdc
- Dimensions of the wheel: diameter 65mm - width 26 mm

XM-15B Bluetooth Serial Port Module Master Slave Compatible Arduino HC-05/06 features:
* Power 3.0V -6V
* 3.3V / 5V logic levels
* Bluetooth version V2.1 + EDR
* Frequency: 2.4GHz ISM band
* Reach approx. 30m
* Security: Authentication and encryption
* Supports AT commands for configuration through a serial port
* Working temperature: -20 ºC to +75 ºC
* Working current - 50 mA
* PCB dimension: 35 x 19m -Using the conventional Bluetooth CSR chip, the protocol standard Bluetooth V2.1 + EDR, passes the Bluetooth BQB certification
-Fast start, only 0.3 seconds to complete the initialization of the complete module (including the Bluetooth protocol stack)
- Built-in hardware protector, never hangs

Store and transport your components in the most orderly and safe way with this organiser case. The case is made of sturdy material, has good fastenings and a handle.

Resistor 220 Ohm 5% 0,25W 1/4W features:
-220 Ohm
-Type: Carbon film
-Tolerance: ±5%
-Power: 0.25W
-Dimensions: 2x7mm