Pulley GT2 16 Teeth 6mm Aluminium Pulley 3D Printer Reprap

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

- It has an Atmega328P chip running at 16Mhz with a factory loaded bootloader - The Uno R3 module has all the connectors than the Arduino Uno R3 and is compatible with all Arduino shields Arduino compatible UNO R3 board features:
- Includes USB Cable - ATmega328P 16MHz chip with external quartz crystal
- Microprocessor: ATmega328
- Operating voltage: 5V
- Input voltage (recommended): 7-12V
- Input voltage (limits): 6-20V
- Clock speed: 16 MHz
- Digital I / O Pins: 14
- Analog input pins: 6
- DC current per I / O Pin: 40 mA
- DC Current per Pin 3.3V: 50 mA
- Flash32 KB of which 0.5 KB are used by the bootloader - Atmega328
- SRAM 2 KB - Atmega328

It is very easy to make it work with an Arduino, PIC or any other microcontroller.
In its output pin we will be able to measure the PWM pulse width depending on the distance of the obstacle.
HC-SR04 Ultrasonic Sensor Distance Measuring Module features:
- Supply voltage: 5V (4.5V- 6V)
- Consumption: 30 mA typical, (35 mA max)
- Interface: VCC , GND, Signal
- Range: 2 cm to 3 meters
- Angle 15º
- LED indicator of measurement in progress
- Frequency: 40 kHz for 200 µs - Size: 30mm x 20mm
- Quantity: 1 unit
Useful links for Arduino / Raspberry programming and projects with boards Arduino / Raspberry:
Automatic robot operation with obstacle detection />

This product is a BNC probe with double black and red crocodile plug to perform your oscilloscope tests.
Its internal resistance is 75 ohm and it has a length of one meter. BNC Probe Male Double Crocodile Plug features:
- 100% new and high quality
- New BNC to double crocodile clip oscilloscope probe
- Standard BNC ends can be used for all oscilloscopes
- Length: 100 cm
- Coaxial cable 3c-2v 75 ohm
- Includes 11 crocodile cable

Mini RS232 to TTL Adapter Max3232 Converter features:
- Converter for RS232 to TTL levels
- MAX3232CSE chip
- Voltage: 3V a 5V
- Speed: no more than 120kbps
- Dimensions: 16x9mm

Kit of Micro Steel Drill Bits to eliminate jams in nozzles of 3D printers, CNC
Characteristic:
- Diameter: 0.2 / 0.3 / 0.4 / 0.5 / 0.6 / 0.7 / 0.8 / 0.9 / 1.0 / 1.2 mm
- Shank diameter approx . 3.2mm
- Total length approx. 38mm
- Material: Steel
- Quantity: 10 units

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.