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This water pump is extremely easy to use. Soak it in the water or liquid that you want to pump, add a tube to the drain and connect it to the power supply. You can also immerse the pump in the liquid you want to decant. In that case you don’t need to attach a inlet tube in this case. It operates at 12V and is able to expel 240L of fluid per hour.

• Voltage: 12V
• Max. height fluid can reach: 300cm
• Flow rate: 240L/h
• External diameter of drainage tube: 8mm
• Pump dimensions: 55 x 52 x 41 mm

Generic P-channel MOSFET transistor in DPAK package. Generic implies that the exact part number may vary, but the transistor will always be equal to or better than the parameters below.

• Vdss: -30V
• Vgs: -2.1V
• Rds(on): 0.068ohm
• Id: -30A
• Package: DPAK
• Components example: HY19P03

M4 rectifying diode inside SMAF package. Often used to adjust voltage and protect against reversed polarity.

SPDT (single-pole, dual-throw) is simple switch which connects central contact with one of the other two contacts located inside its housing.

The CH340G is USB to UART bridge that gains most of its popularity due to its extremely low price. Made in China and found on most Chinese versions of Arduino. The advantage of the C version is that it does not need an external oscillator.

• Package: SSOP16

JST (more specifically JST PH) connectors are nowadays the most common connectors for rechargeable lithium batteries, but they are also used for many other applications where fast, easy and favorable connection is required.

This adapter will help you connect our fingerprint sensor with ease.

This adapter will help you connect our air quality sensor PMS5003 with ease.

A new and more powerful Raspberry Pi 4 is here! The most famous little computer in the world that doesn’t need any introduction. The 87 x 58mm board features a 64-bit 4-core processor clocked at 1.5GHz, 4GB of RAM, WiFi and Bluetooth, Gigabit Ethernet, 2x HDMI output, 4 USB ports, an SD card slot for system sotrage and your data. One should not forget the well-known Raspberry Pi GPIO, which allows you to connect various accessories directly to the Raspberry Pi.

A new and more powerful Raspberry Pi 4 is here! The most famous little computer in the world that doesn’t need any introduction. The 87 x 58mm board features a 64-bit 4-core processor clocked at 1.5GHz, 2GB of RAM, WiFi and Bluetooth, Gigabit Ethernet, 2x HDMI output, 4 USB ports, an SD card slot for system sotrage and your data. One should not forget the well-known Raspberry Pi GPIO, which allows you to connect various accessories directly to the Raspberry Pi.

Load cell is a small device that is able to weigh the load on it. Due to the load, it provides very small output voltages that need to be amplified (eg using op-amp or ADC with a built-in op-amp) to find the use for the module. It incorporates two invariable two variable resistors connected to the Wheatstone Bridge. This sensor is made from high-quality materials, so it does not get affected by high temperature or continous load. You need to connect it with the HX711 to read information with Croduino.

Additional passive RFID tag for use with our RFID readers. It si practical as key ring.

RFID tag comes in two variants, 125kHz or 13.56MHz.

The transparent cover is detachable and is held by four Phillips screws. Between the cover and the base, it is possible to place a rubber band that would waterproof the box (rubber band included). The transparent cover is convenient, because it allows you to see inside the box or can be used with light sensors/UV lights.

STLink standardly is known programmer for STM microcontrollers. Works with a whole specter of tools for STM, including mbed, Atollic Studio, Arduino IDE etc.

Soldermask is a layer on a printed circuit board that gives it a color, usually green, and is used to protect the tile from corrosion, easier soldering and visual appearance. This soldermask is in a liquid state, so you can easily apply it to places you want to protect further, such as wires that have been added or lines that have been damaged. It enters the solid state under UV light.

A vernier caliper is a tool that allows precise measurements of many physical dimensions. This one, made of high-strength stainless steel and with a digital display of the measured value.