NES Uni-Tap 2-player controller adapter. Combines two original Nintendo controller inputs into one single output for accessibility/copilot style gameplay.

Extend the range of your I2C bus and easily tap into it to drop in devices wherever you would like.

The BLM02AX121SN1# is a chip ferrite bead manufactured by Murata, designed to function as a resistor at noise frequencies, thereby minimizing resonance and maintaining signal integrity. This surface-mount device (SMD) features a compact size of 0.4mm x 0.2mm, making it ideal for noise suppression in small electronic equipment, such as PA modules for cellular phones. The component operates effectively across a wide frequency range (30MHz to several hundred MHz) without requiring a ground connection, making it suitable for circuits without stable ground lines. The BLM02AX121SN1# offers a rated current of 250mA at 125°C, a maximum DC resistance of 0.50Ω, and an impedance of 1200Ω at 100MHz with a tolerance of ±25%. It is available in two packaging options: bulk (bag) with a standard packing quantity of 1000 units and 180mm paper tape with 20000 units. The device is compliant with RoHS and REACH standards, ensuring its suitability for consumer and certain medical and industrial applications.

NES Uni-Tap 4-player controller adapter. Combines up to four original Nintendo controller inputs into one single output for accessibility/copilot style gameplay.

Experimental 21V/5S Li-ion DeWalt battery charger with 21V DC input, relay-switched charge path, tap monitoring, ESP32-WROOM external controller interface, test header, and 2-layer prototype PCB intent.

Professional-grade STM32F407 dual-motor tape tension controller with precision load-cell ADCs, CAN interfaces, ESP32 wireless coprocessor, USB-C, external memory, and protected 12–24 V power architecture.

Welcome to your new project. Imagine what you can build here.

A simple fixed linear voltage regulator board that can provide 3.3V up to 1A output and could operate down to 1V input-to-output differential. #firstpcbFlux

The 2N7002E is a small signal MOSFET produced by ON Semiconductor, designed for applications requiring a low RDS(on) and high efficiency in a compact SOT-23 package. This N-Channel MOSFET can handle a maximum drain-to-source voltage (VDSS) of 60 V and a continuous drain current (ID) of up to 310 mA at 25°C. It features trench technology for enhanced performance and is AEC-Q101 qualified, making it suitable for automotive and other high-reliability applications. The device is Pb-free, Halogen-free, and RoHS compliant. Typical applications include low side load switches, level shift circuits, DC-DC converters, and various portable devices such as digital still cameras (DSC), PDAs, and cell phones. The MOSFET's thermal characteristics include a junction-to-ambient thermal resistance of 417°C/W in steady state and 300°C/W for short durations (t ≤ 5 s). The 2N7002E is available in tape and reel packaging, with part numbers 2N7002ET1G and 2N7002ET7G for standard applications, and S2N7002ET1G and S2N7002ET7G for automotive-grade requirements.

The NTMFS4C03N, manufactured by ON Semiconductor, is a high-performance, single N-Channel MOSFET designed for power applications. Encased in a compact SO-8FL package, this component offers a maximum drain-to-source voltage (VDSS) of 30V and a continuous drain current (ID) of up to 136A at 25°C. With an exceptionally low RDS(on) of 2.1 mΩ at VGS of 10V, it minimizes conduction losses, making it ideal for high-efficiency power management. Additionally, the MOSFET features low gate charge (QG) and capacitance, reducing driver losses and enhancing overall system efficiency. The device is Pb-Free, Halogen Free/BFR Free, and RoHS compliant, ensuring adherence to environmental standards. It also boasts a robust thermal performance with a junction-to-case thermal resistance (RθJC) of 1.95°C/W, making it suitable for applications requiring efficient heat dissipation. The NTMFS4C03N is available in tape and reel packaging options, accommodating various manufacturing needs.