SparkSwitch Pro and Ignitors without tacho output

  • For all Ignitors without tacho output we can use small device, developed initially for OS MAX Ignitors, but usable for all other ignitors without tacho output.

    This device with dimensions 25x17mm, weight less than 5g contains four connectors:

    1. connect input from Hall (or other type of sensor, for instance DA sensors are not a Hall type) sensor on engine

    2. connect output from ignitor, normally connected to Hall sensor

    3. connect input lead from ignitor, normally used for power supply of ignitor, does not matter what voltage, it's working from 1.1V up to 3 cells full voltage

    4. connect to SparkSwitch Pro


    If is anybody is interested in it, send me private message please.


    On the picture you can see:

    1. Left side - device without shrink tube covering, to be able have look to implementation, PCB is two side, well shielding, used all SMD components excluding mosfet

    2. Right side - device covered, this covering is safe, do not need any metal box, easy use flexible strips for fixing, ideal position is near to ignitor



    UPDATE !!!

    New version of device, information inside this thread, at the bottom :-)


    UPDATE 2 !!!

    I developed new version, because in some cases mainly with DA twin ignitors we had small issues with the sensor signal. Therefore to be 100% sure, that all, really all ignitors will be working properly with the SparkSwitch Pro, new version is microprocessor controlled, read absolutely ALL signals from ALL sensors!!! It's so important, to be 100% sure, that after connection SparkSwitch Pro with accessory device all is working immediately correctly.


    We tested this device with twin DA, single DA ignitors, and it's working absolutely properly, smoothly, without any doubts!




  • UPDATE:

    Device was tested in the flight with:

    1. OS MAX GT33

    2. OS MAX GT60

    3. DA35

    4. DA50

    5. Saito FG-36

    6. Zenoah 20 (tested with 3.6V and 4.8V also)

    7. DA 100L- twin IGN (need to specify, device has other amplifier, special for twin version)

  • Rudi,


    if you post the perfect connection picture you have been sending to me here, there should be a lot more people here

    needing your device. I'm looking forward very much receiving mine from you.

    Cheers

    Jürgen

  • Hallo All,


    new version is ready, on pictures you can see differences in size (new version is smaller), and new version has LED indicator of functionality, showing (blinking) status - sending pulses into SparkSwitch Pro:

    1. Here you can see both, installed old version, but connected new version, SparkSwitch Pro is ON (LED on fuselage)


    2. Engine is sending RPM info to SparkSwitch Pro (on device LED is ON)


    3. Little bit more rpm to be able see it on transceiver telemetry:



    All, whom I sent old version, I will send gratis new also, not need pay anything :-)


    Have a fun

    rudi

  • Some details about right installation/connection:

    1. On image you can see, how to connect all cables, if there is something unclear, not exact, please tell me!




    2. On second image you can see, that engine turned little bit, to change position of hall sensor, immediately is LED on device ON.

    It is really helpful, to have immediately information, that signal was passed to SparkSwitch Pro. In case when LED stay off, not blinking, when you rotate engine, then something went wrong, and signal is not passed. But I hope that never happen :-)




    3. Pinout




    If somebody will need help, please do not hesitate contact me immediately, also share please your experiences with new device!


    For all users of multi-cylinder engines, please have look into my post in thread SparkSwitch PRO and multi cylinder engines


    Couple of pilots are using this new device developed especially for SparkSwitch Pro, me too (first one, prototype :-)) and all are really satisfied with possibility to measure MIN/MAX temperatures on cylinders, using SparkSwitch Pro directly. I'm using this device also for one cylinder engine, with 2 sensors in different positions inside cowl. It's helpful for me, to be sure that engine is well cooled.

  • UPDATE !!!

    I developed new version, because in some cases mainly with DA twin ignitors we had small issues with the sensor signal. Therefore to be 100% sure, that all, really all ignitors will be working properly with the SparkSwitch Pro, new version is microprocessor controlled, read absolutely ALL signals from ALL sensors!!! It's so important, to be 100% sure, that after connection SparkSwitch Pro with accessory device all is working immediately correctly.


    We tested this device with twin DA, single DA ignitors, and it's working absolutely properly, smoothly, without any doubts!