A DIY PCB fixture using split-Kelvin technique enables accurate, repeatable LCR measurements for low-impedance SMD components ...
Order your pcb design at jlcpcb for $2 (24 hours turnaround time). This is the most complex or detailed soldering I've done so far, the QFN20 package is very small but still not impossible to solder ...
With this circuit, you can flash some LEDs for your rc airplanes or any other uav just like the real strobe navigation lights of an airplane. Using the service provided by JLCPCB, you can order the ...