Display Degrees of rotation.

[Bobw55]

Thanks for all the replys.
I ended up using a hall sensor and the magnets from a CD drive motor for the sensor part. I used a 16F1827 PIC, a 2x16 LCD and other hardware. I now have a rotor controller that will allow me to go from -90 of North to 360 rotation plus an additional +90 of north 540 total degrees of rotation. To give me a HOME position I used a IR emitter detector with a reflective strip to light an LED on the controller panel. I can increment/decrement the "GOTO" poition by either 1 or 10 degrees at a time. I am really happy.

Bob

[Archangel]

Thanks for all the replys.
I ended up using a hall sensor and the magnets from a CD drive motor for the sensor part. I used a 16F1827 PIC, a 2x16 LCD and other hardware. I now have a rotor controller that will allow me to go from -90 of North to 360 rotation plus an additional +90 of north 540 total degrees of rotation. To give me a HOME position I used a IR emitter detector with a reflective strip to light an LED on the controller panel. I can increment/decrement the "GOTO" poition by either 1 or 10 degrees at a time. I am really happy.

Bob

Hi Bob,
Lot's of Hams on this forum. Your project looks useful as all getout to me, might make a great article or entry into one of this forums contests. Food for thought. If you do not intend to make a commercial product, perhaps you would write it up with code and submit it.

[Bobw55]

I may have to consider that.
I only have a hand drawn schematic.
Here is a picture of the almost completed project. I still need to finish the labeling.

[Ramius]

Hi Bobw55,
As a ham (WB6NSN) I can appreciate the need to know where the antenna is pointed. One other possible solution is to use a compass module such as the R1655. Here is a link with everything: http://www.robsonco.com/Dinsmore/Untitled_5.html

For me, I slipped the sensor into a plastic tube and sealed it.
The accuracy is 1/10 of 1 degree.

[Darrel Taylor]

Hi Bobw55,
As a ham (WB6NSN) I can appreciate the need to know where the antenna is pointed. One other possible solution is to use a compass module such as the R1655.

What a great idea!

[Dave]

Ramius , My only concern would be the close proximity to the antenna during transmit. The flux coils may be over driven....

Dave Purola,
N8NTA

[Ramius]

Hi Dave,
Actually the R1655 sensor is actually 2 HAL effect transistors and a permanent magnet so there are no coils. The compass works next to a 5 watt 1.2GHZ transmitter with no effect. On the compass PC board the sensor is mounted right on top of the A/D converter to keep the connections as short as possible just to avoid any noise since the compass is in an R/C submarine with a lot of DC motors and there is a bypass capacitor on the same board with the sensor and A/D. I used two each 3-wire shielded audio cables between the compass and the PIC. I believe you would be just fine and you could also include some ferrite beads if you wish. Hope this helps, Ed