Shared projects

AK8963N Digital Compass Breakout Board

by Kelbit.

2 layer board of 1.01x0.78 inches (25.55x19.84 mm).
Shared on October 5th, 2014 20:26.

A breakout board for the AK8963N three-axis digital compass. Uses 100 mil headers with 600 mil spacing between the rows, so you can plug it right into a breadboard. Further documentation.

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Altitude Tracker

by Kelbit.

2 layer board of 1.13x0.73 inches (28.65x18.47 mm).
Shared on October 5th, 2014 20:09.

Small device powered by a button cell which detects the peak altitude of a hobby rocket.

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Generic Bandpass Filter

by Kelbit.

2 layer board of 1.75x0.50 inches (44.53x12.75 mm).
Shared on September 26th, 2014 17:03.

An inline RF bandpass filter (unbalanced). Solder through-hole SMA connectors (example: DigiKey P/N A97594-ND) to the ends and then populate your own LC ladder network on the 0603 pads.

Traces have 50 ohm characteristic impedance based on OSHPark 2-layer stackup, planes have been via stitched for better RF performance.

You may want to mount the board inside a small metal box for shielding.

A good resource for calculating the LC values is: http://www-users.cs.york.ac.uk/~fisher/lcfilter/

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MSP430 CAN Servocontroller

by Kelbit.

2 layer board of 2.24x2.00 inches (56.95x50.85 mm).
Shared on June 16th, 2014 07:37.

A CAN-enabled servocontroller based around the TI MSP430. Designed for use with Pololu metal gearmotors

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