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DragonOSD+ easy modification of the SFE Atto current sensor

Posted: Tue 02 Feb 02 2010 5:25 am
by John Lee
Thanks to Daniel's know how, here I take a $20 (USD) current sensor which is made by Dean Geodde (available at and modify it to work with Dragon OSD+. Three resistors are removed and a solder is bridged together across the right side of the resistor pads on the pcb.

Here is the video.


Re: EZ DIY Current Sensor for Dragon OSD +

Posted: Tue 16 Mar 16 2010 4:09 pm
by John Lee
More detail photos. Please pay attention to the crossed wires which goes to the OSD.

Re: DragonOSD+ easy modification of the SFE Atto current sen

Posted: Sun 05 May 05 2013 1:26 pm
by kang
Here's the newer version a similar current sensor.
the resistors are at a different position, might be of different value too i don't know (on this pic its 4.7k and 10K)
The solder jump just bypasses the resistors so the DOSD gets the battery voltage value "directly" (theres still a cap its not really direct, but it'll get the exact battery voltage, not a divided voltage)