cairo electronics

EVE ICR18650 Li-ion Rechargeable 18650 Battery 3.6V 14.3A 2550mAh ORIGINAL (NEW)

Battery & charger

SKU: PRO01136

EVE ICR18650 Li-ion Rechargeable 18650 Battery 3.6V 14.3A 2550mAh ORIGINAL (NEW)

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An LM741 single operational amplifier IC in a standard DIP-8 through-hole package with pin 1 indicator notch.

-20%

LM741 Op-Amp IC | Pro Tronix

ICs

SKU: PRO00235

Classic LM741 single operational amplifier IC in DIP-8 through-hole package. Perfect for analog signal processing, educational circuits, and linear amplification!

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Compact blue printed circuit board showcasing an input DC barrel jack and terminal block on the left, an input capacitor, step-down conversion circuitry with a 330 power inductor in the center, and a female USB port next to an output terminal block on the right.

-10% Sold out

24V/12V to 5V 5A DC-DC Buck Converter Module with USB & DC Jack | Pro Tronix

Sensors & Modules

SKU: PRO00538

High-efficiency, synchronous 24V/12V to 5V 5A DC-DC step-down power module. Equipped with an onboard USB Type-A port, output screw terminals, an input DC barrel jack, and reverse-polarity protection. Ideal for powering Raspberry Pi setups, charging mobile electronics, and driving high-current robotics projects.

Ultra-compact blue GY-273 printed circuit board showing a tiny 3-axis magnetometer chip, decoupling capacitors, pulling resistors, and 5 parallel solder pads for pin headers.

-9% Sold out

GY-273 HMC5883L 3-Axis Digital Compass Magnetometer Module | Pro Tronix

Sensors & Modules

SKU: PRO00459

High-precision GY-273 3-axis digital compass and magnetometer module. Operating on a wide 3.0V to 5.0V DC input, it communicates seamlessly over a standard I2C interface to output 12-bit heading and magnetic field strength values. An essential sensor for robot navigation, DIY digital compasses, and metal detection.