DragonOSD+ easy modification of the SFE Atto current sensor

Support related stuff, for various products
John Lee
Posts: 105
Joined: Thu 26 Feb 26 2009 12:24 pm

DragonOSD+ easy modification of the SFE Atto current sensor

Postby John Lee » Tue 02 Feb 02 2010 5:25 am

Thanks to Daniel's know how, here I take a $20 (USD) current sensor which is made by Dean Geodde (available at http://www.sparkfun.com) 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.

http://www.vimeo.com/9124273

John

John Lee
Posts: 105
Joined: Thu 26 Feb 26 2009 12:24 pm

Re: EZ DIY Current Sensor for Dragon OSD +

Postby John Lee » Tue 16 Mar 16 2010 4:09 pm

More detail photos. Please pay attention to the crossed wires which goes to the OSD.
Attachments
P1020719.JPG
Resistors removed and a solder bridge is added across the inside.
P1020719.JPG (97.48 KiB) Viewed 8024 times
P1020720.JPG
P1020720.JPG (97.18 KiB) Viewed 8024 times
P1020717.JPG
P1020717.JPG (116.47 KiB) Viewed 8024 times

kang
Posts: 33
Joined: Sat 26 Jun 26 2010 11:46 pm
Location: Europe mainly
Contact:

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

Postby kang » Sun 05 May 05 2013 1:26 pm

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)
Attachments
current.JPG
current.JPG (174.7 KiB) Viewed 6344 times


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