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Search: Posts Made By: Gadroc
Forum: Home Cockpits 06-26-2017, 05:07 PM
Replies: 8
Views: 1,926
Posted By Gadroc
Normal channel pricing on the MAX487 chips are...

Normal channel pricing on the MAX487 chips are significantly higher than that. The lowest listed price for a MAX chip at quantity of 1000+ is $1.63. Based on that pricing, plus the fact that there...
Forum: Home Cockpits 06-26-2017, 01:19 AM
Replies: 8
Views: 1,926
Posted By Gadroc
I'd look at some TI RS-485 transcievers. The MAX...

I'd look at some TI RS-485 transcievers. The MAX chips are 3 times more expensive which will add up over an entire pit.
Forum: Home Cockpits 06-21-2017, 03:43 PM
Replies: 350
Views: 109,087
Posted By Gadroc
I cut all the parts out on the CNC and then...

I cut all the parts out on the CNC and then hammered in the inserts after cleaning up the parts. It's possible to flip the parts and cut with the bottom side up and insert the nuts after the holes...
Forum: Home Cockpits 06-20-2017, 09:14 PM
Replies: 350
Views: 109,087
Posted By Gadroc
Some pit progress... finally. I got the left...

Some pit progress... finally. I got the left side console console almost ready.I just need to cut out the outside wall panel and I can square up and assemble to frame. The 8/32 press fit inserts...
Forum: Home Cockpits 05-21-2017, 06:24 PM
Replies: 350
Views: 109,087
Posted By Gadroc
Time is never my friend, but Rev 2 is now on the...

Time is never my friend, but Rev 2 is now on the bench and working! Although there are a few changes from above. I switched to a different CPU to reduce part count. I had to remove the 4 HAT switch...
Forum: Home Cockpits 04-18-2017, 01:38 PM
Replies: 238
Views: 57,902
Posted By Gadroc
Great job! That nice pop when the switches turn...

Great job! That nice pop when the switches turn off has to be satisfying. I took a quick look through the DCS Bios code to check on those behaviors.

1) This is normal and as you said not an...
Forum: Home Cockpits 01-22-2017, 02:11 PM
Replies: 238
Views: 57,902
Posted By Gadroc
DCS Bios protocol has all values with 65536 steps...

DCS Bios protocol has all values with 65536 steps (0-65535) or 16 bit resolution, but your arduino has no where near that capability in measuring analog values. It only has 1024 steps (0-1023) or...
Forum: Home Cockpits 01-19-2017, 04:43 AM
Replies: 238
Views: 57,902
Posted By Gadroc
You're algorithm has just effectively dropped...

You're algorithm has just effectively dropped resolution. There are a couple of other techniques to deal with this that are better.

First apply filters to the raw ADC reading (0-1023) not to the...
Forum: Home Cockpits 01-17-2017, 03:09 AM
Replies: 25
Views: 6,164
Posted By Gadroc
That is just an awesome setup. I already have to...

That is just an awesome setup. I already have to many projects unfinished and you have to go show this off :)
Forum: Home Cockpits 01-01-2017, 05:28 PM
Replies: 350
Views: 109,087
Posted By Gadroc
I've got 90% of the firmware workings. ...

I've got 90% of the firmware workings. Oversampling and filtering on the analog inputs is done. I have also reworked the schematics a little bit adding two additional analog inputs and 4 more...
Forum: Home Cockpits 12-21-2016, 05:58 PM
Replies: 350
Views: 109,087
Posted By Gadroc
New toy for x-mass came early yesterday. The...

New toy for x-mass came early yesterday. The prototype PCB for my joystick controller with built in amplifier for the transducer.

Here is the raw board as it showed up....
Forum: Home Cockpits 11-27-2016, 01:35 AM
Replies: 50
Views: 11,848
Posted By Gadroc
I have all of the indicators on the ARU2B working...

I have all of the indicators on the ARU2B working with a simple arduino. Most can be controlled with just a resistor and two PWM pins. The only two things that can't be controlled like that are the...
Forum: Home Cockpits 11-23-2016, 01:47 AM
Replies: 268
Views: 66,663
Posted By Gadroc
Looking great! Congrats on the new CNC...

Looking great! Congrats on the new CNC machines... boy is that a dangerous part of this hobby. I've gotten lost in playing with them and making them better.
Forum: Home Cockpits 03-28-2016, 11:21 PM
Replies: 46
Views: 11,551
Posted By Gadroc
Awesome work so far. It's a very rewarding...

Awesome work so far. It's a very rewarding journey. My wife is never sufficiently impressed when I figure out how to build something either :lol:.
Forum: Home Cockpits 03-24-2016, 08:33 PM
Replies: 238
Views: 57,902
Posted By Gadroc
The OpAmps in the configuration of the second...

The OpAmps in the configuration of the second schematic are inverting amplifiers. They invert around the reference voltage which is roughly 4 volts. The first amplifier is configured with a gain of...
Forum: Home Cockpits 03-24-2016, 04:51 PM
Replies: 238
Views: 57,902
Posted By Gadroc
Also I'm looking into other op amps that have a...

Also I'm looking into other op amps that have a rail to rail capability, which might eliminate the need for a secondary power supply. I have to order some parts to test it so will be a week or so...
Forum: Home Cockpits 03-24-2016, 04:47 PM
Replies: 238
Views: 57,902
Posted By Gadroc
Here is a new circuit diagram. Changes... ...

Here is a new circuit diagram.

Changes...
* Went back to using inverting configuration on the op amps. As it was a little easier for some things.
* Removed filter caps. Testing showed they...
Forum: Home Cockpits 03-23-2016, 03:02 AM
Replies: 238
Views: 57,902
Posted By Gadroc
I got my amplifier up and running. It's a...

I got my amplifier up and running. It's a modified version of Mike Powell's circuit. I switched it to be non-inverting instead of inverting and added some filtering. I then hook it in through a...
Forum: Home Cockpits 03-20-2016, 06:00 PM
Replies: 350
Views: 109,087
Posted By Gadroc
Once I get it dialed in I'll post the files.

Once I get it dialed in I'll post the files.
Forum: Home Cockpits 03-19-2016, 04:07 AM
Replies: 350
Views: 109,087
Posted By Gadroc
Working on converting my A model throttle into a...

Working on converting my A model throttle into a C model, and getting it converted to a joystick. First test print of my right grip is done. Need to tweet a few tolerances and fix the speed brake...
Forum: Home Cockpits 03-18-2016, 11:08 AM
Replies: 238
Views: 57,902
Posted By Gadroc
I'm almost finish with my right grip conversion. ...

I'm almost finish with my right grip conversion. Will be printing the next prototype today/tonight. I'm using the coolie hats and boat switch from my TM warthog. I'll post up the model once I test...
Forum: Home Cockpits 03-15-2016, 10:34 PM
Replies: 238
Views: 57,902
Posted By Gadroc
Here is the link...

Here is the link (http://www.viperpits.org/smf/index.php/topic,9588.75.html) to Mike's circuit. It's for the RDR Cursor on an F-16 throttle, but I think it's the same sensor.
Forum: Home Cockpits 03-15-2016, 10:26 PM
Replies: 238
Views: 57,902
Posted By Gadroc
The original amplifier works on 5v. I was...

The original amplifier works on 5v. I was testing that last night. There is an unexpected 5th lead on the original amp which I haven't figured out yet. It's tied to the centering pot for one of...
Forum: Home Cockpits 03-15-2016, 04:47 PM
Replies: 238
Views: 57,902
Posted By Gadroc
Awesome work so far! I just started working on...

Awesome work so far! I just started working on converting my throttle as well. Current intent is to use the parts from my Thurstmaster Warthog to convert the right grip, just using the force sensor...
Forum: Home Cockpits 03-04-2016, 05:14 PM
Replies: 46
Views: 11,551
Posted By Gadroc
I don't have a 3040 to add one to but the...

I don't have a 3040 to add one to but the concepts are the same for all CNC milling machines. I've considered getting a 3040 to pair with the bigger gantry router. We'll see how well my gantry...
Showing results 1 to 25 of 500

 
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