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Author Topic: Arduino Instructions  (Read 40045 times)

photo444

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Re: Arduino Instructions
« Reply #45 on: December 15, 2014, 05:46:15 »

I just have tried again.
RA: 144*4=576, a1=576*200*32=3686400, 
DEC: 90*6=540, b1=540*200*32=3456000.
The gear ratio: RA=4 DEC=6
From Parked Position (DEC=90) to Mu UMa (41:30) gave my DEC reading of 56:00
The controller commanded 48:30 but the mount moved 34:00
From Mu UMa (41:30) to Jupiter (14:48) gave the DEC reading of 38:00
The controller commanded 41:30-14:48=26:42 but the mount moved 56-38=18
Now I pressed PARK to Home Position, DEC reads 90:00.

I entered right gear information (576:1 <- 144, 4 and 540:1 <- 90, 6), it still gives less movements than demands.

The ratio of 4 comes from 60/15, and 6 comes from 90/15.

Paul
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TCWORLD

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Re: Arduino Instructions
« Reply #46 on: December 15, 2014, 14:32:56 »

Well the good news is that I have worked out why you can't open EQMOD during the AstroEQ configuration using the Arduino Mega - basically I switched to using Processing IDE 2.2.1 and that uses a different serial library which buggers up control of the DTR line (to reset the Arduino). It doesn't affect the AstroEQ boxes I presume because of differences in the bootloader.
Anyway, that will be fixed in the next release of the Utility (over Christmas some time).

Paul, I'm going to have a look with an oscilloscope and the Arduino Mega I have to see if there is anything wrong with the firmware causing your setup to not move the right distance.
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Tom Carpenter (AstroEQ)

photo444

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Re: Arduino Instructions
« Reply #47 on: December 15, 2014, 15:33:30 »

Fixing "Can't connect EQMOD' is very useful. It will prevent power cycling of the unit before usage.

I will be looking forward to hearing your finding over Mega 2560 firmware; I am expecting too much this Christmas!  :D

Many thanks, Tom,
Paul
« Last Edit: December 15, 2014, 17:04:26 by photo444 »
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