Prolonged severe weather across the U.S. is causing delays including the ability to transport and deliver packages in certain cities. Please see here for more details. Thank you for your continued support and patience.


Please see all COVID-19 updates here as some shipments may be delayed due to CDC safety and staffing guidelines. If you have an order or shipping question please refer to our Customer Support page. For technical questions please check out our Forums. Thank you for your continued support.



Member Since: May 9, 2013

Country: United States

  • Experimenting with this product, I discovered that it only moves about half of the range on the servos I have. Looking at the github code and testing with writeMicroseconds(), I discovered that the firmware was compiled with the SAFERANGE flag, setting the pulsewidth range of 1000 to 2000 microseconds. This seems a bit restrictive considering that the arduino defaults on its servo library are 544-2400. So be aware that if you want more range you'll need to recompile and reload the firmware.

    see: https://github.com/sparkfun/Servo_Trigger/Firmware/ServoTrigger/ServoTrigger.c

No public wish lists :(