2x AAA 3V battery holder for Micro:bit

IIC/I2C adapter PCF8574 LCD 1602 1604 2004 Interface features:
- Based on the PCF8574A chip
- Power: 5V
- Supports I2C Protocol
- A potentiometer for regulate contrast
- Dimensions: 19x42mm PCF8574 - & gt; the default address 0x20
PCF8574A - & gt; the default address 0x3F - You can change anyone between 0x20 and 0x27 depending on whether or not you have soldered pins A0 A1 A2 - With this module the communication between the Arduino and the LCD It is only made through two outputs, SDA and SCL
- Up to 8 LCD screens can be connected to the same I2C bus choosing a different address - Ideal for projects with ARDUINO and Raspberry Pi platforms - You can use it with PIC, AVR, STM32

The bluetooth HC-05 module is one of the best options for projects where you need wireless communications.
The transceiver module (transmission / reception) allows bluetooth wireless connections as master or slave, works transparently as if making a wired RS-232 TTL serial connection. Arduino Wireless Module HC-05 HC05 Bluetooth features:
- CSR BC417 Chipset
- Power: 3.3.
- Bluetooth version V2.0 + EDR
- Frequency: 2.4GHz ISM band
- Modulation: GFSK
- Approximate range: 10m
- Security: Authentication and encryption
- Speed- & gt; Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps / 1Mbps
- Supports AT commands for configuration through a serial port
temperature: -20 ºC to +75 ºC

Ideal for projects with ARDUINO.
You can use it with PIC, AVR, STM32. MPU-6050 Accelerometer Module + Gyroscope 3 features:
- Chip: MPU-6050
- Power supply: 3V-5V
- Operating current: 5mA
- Communication: I2C
- 16-bit analog-digital converter on all axes
- Gyroscope scales: ± 250, ± 500, ± 1000 and ± 2000 ° / sec (dps) (programmable by the user)
- Accelerometer scales: ± 2g, ± 4g, ± 8g and ± 16g (programmable by the user)
- Dimensions: 14 x 21 x 1.3mm
- Quantity: 1 unit (1 strip of 8 pin + 1 strip of 8 layered pin)

GamePad for micro:bit V4.0 adopts a high-precision three-axis analog quantity joystick. The combination of joystick and gamepad allows you to control the direction and speed of Maqueen at the same time. In addition, there are 7 programmable buttons, which means you can explore more interesting functions and more flexible controls. In the latest V4.0 product, we have placed the external battery box on the PCB, which is more convenient to use.

Ideal for your arduino projects, but can also be used with other microcontrollers. Double Joystick Module 2 Axis XY PS2 features:
- Two axes (XY)
- Return to the center
- Central push button
- Connections: + 5Vcc / GND / VRx / VRy / SW
- Dimensions: 4 x 2.6 x 3.2cm

Characteristic: - Cable 15cm long
- Measurements 74x21x 19mm
- Weight: 8 gr. (approx.)
- Stack length max 67mm

40x Female-Female Cable 10cm features:
- Length: 10cm
- Quantity: 40 cables
- Dupont female connectors on both ends
- Compatible with 2.54mm male connectors
- High quality and good working conditions
- Easy to install and use