GY-91 10DOF 4 Sensors in 1 Module with MPU-9250 and BMP280

Power Supply DC 5V 6A 30W features:
- Supply voltage: 110 / 230V AC
- Output voltage: 5V DC - Output amperage: 6A
- Power at 5V: 30W
- Dimensions: 110mm x 78mm x 36mm

Shield allows you to be directly punched to an Arduino Uno, Mega board and convert your Arduino board into a controller like the game console system. Joystick Shield compatible with Arduino UNO Mega features:
 
- 3.3V / 5V voltage
- 4 large buttons ABCD
- 2 small EF buttons
- 1 button on the joystick)
- 2-axis joystick (x, y)
- Nokia 5110 LCD screen interface
- Interface nRF24L01 +
- Dimensions of PCB: 87 x54 mm

Product Category: Bipolar Transistor, PNP
BC557B 50V PNP Transistor 100mA 0.1A TO-92 features:

- Package / Case: TO-92
- Quantity: 25 units
- Collector-base voltage VCBO: 50V
- Collector-emitter voltage VCEO: 45V
- VEBO emitter-base voltage: 6V
- Continuous collector current: 100mA
- DC MAX collector current: 200mA
- Maximum power dissipation: 500mW

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.)

In the case of a battery pack, the BMS (Battery Management System) balancing protection circuit allows charging and discharging to be individually controlled. That is, the circuit controls that all cells are charged and discharged at approximately the same voltage. The current during charging should be limited, because the cell will "absorb" the current given to it, but a higher current than the one established by the manufacturer (generally a safe current is 1C ) can cause the cell to overheat and, in extreme cases, explode. The same relationship also applies to discharge.

Relay SRD-05 DC-2P 5V 10A SPDT features:
- Supply voltage: 5V
- Output Current: 10A
- For power switching with 5V DC signals - Microcontroller, Arduino, Electronica

Soldering Aid Kit Welding Tools features:
- Variety of applications for precision work
- To meet the requirements of welding operation of the press, cutting, scraping, hooks brushes etc
- Content:
  1x Welding aid knife
  1x Welding Fork Assistance
  1x Welding assistance scraper
  1x Hook assistant chip retention
  1x Welding brush for assistance
  1x Spatula

4x 18650 3.7V Parallel Lithium Battery features:
- Cable 10cm long
- Measures 80x76x 20mm
- Stack length max 67mm