AC Holic

Archive for August, 2009

HeliLIghts Mini Build Plans

by on Aug.09, 2009, under Hobbies

Here are the HeliLights schematics, pcb layout and HeliLights Mini hex file for those who would like to build one for their models.  If you do, please drop me a note in the comments.  I would love to see a picture of the model that you incorporated this into.

HeliLights Mini Schematic

parts placementPCB Top

Build Notes:

  • The pcb layouts should be printed at 300 dpi to generate actual size patterns.
  • R4 = 3.3K for 2s Lipo battery, low battery warning is set at 6.35 volts.
  • Pin 2 of the 3 pin header (SV1)  is to be connected directly to + of the battery, it is NOT part of the servo plug that goes to the reciever.  Pin1 and 3 should be plugged into the reciever’s Gear/Aux channel.  1 being ground and 3 being signal.  Use a proportional channel if possible rather than just a switched channel as the various modes are accessed depending on the PWM of this channel.
  • The ATTiny85 must have its Reset fuse set. ie: RSTDISBL checked.  Clock is internal RC 8MHz.  No divide by 8 ie. CKDIV8 not set.
  • Since the reset line (pin 1) is needed for IO, once it is disabled in the fuse setting, no further in-circuit programming can be done.   So be careful to program the chip correctly, then set the RSTDISBL fuse. You only have one chance at this unless you have a way to erase the chip using high voltage program mode.


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Information presented on this web site should be used as a guide or educational purposes only. No warranty, either express or implied is made with respect to the suitability or correctness of the information contained herein. AC Holic or its author Rex shall not be held responsible for any loss, inconvenience, damage (whether special or consequential) or claims arising out of the use of the information contained on this site.
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HeliLights Flight Test

by on Aug.04, 2009, under Hobbies

Had some time on the long weekend and made a video with the HeliLights in flight.

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