The Assan GA250 is nifty little gyro for $9,99, unfortunately it is very hard (or impossible) to get it to hold the tail in aggressive maneuvers with the original firmware, it just does not have enough adjustments. Don’t worry, there is a solution; flash a custom firmware to your GA250! There are at least two custom firmwares for the GA250 that I know of, but this how-to will deal with […]

A perfect companion for your modded Turnigy 9X transmitter is the FrSky RC system with telemetry. FrSky system supports sending telemetry data back to the transmitter module from the actual model you are flying. By default the D8R-II plus receiver supports two ADC ports (A1 and A2) and a 9600bps serial connection (through which you can send pretty much anything). The A1 port is pre-configured to include a 1:4 voltage […]

In the next phase of creating a PCB with KiCad you must connect the components to “modules” (a term KiCad uses to refer to footprints) with cvpcb. You can open cvpcb from the KiCad main window by pressing the second large button. cvpcb will issue a warning about not finding a .cmp file but this is normal before you have saved with cvpcb (which in turn creates the .cmp file). […]

Categories: KiCad Tutorial

Recently I have been using KiCad as my one and only EDA (Electronic Design Automation) tool and I think it’s surprisingly good. I’m not sure why it is not more widely used (maybe because of the fairly crappy website?) because it really is comparable to Eagle and other cheap/free EDA tools. The biggest pro is of course the fact that KiCad is an open source software and has no limitations on […]

Categories: KiCad Tutorial