rigel/notes.txt at master · AndyColson/rigel · GitHub

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Rigel + QSI: 11.97' x 9.01'

PI /dev/ttyS0
laptop: screen /dev/ttyUSB0 115200

pi3:
/boot/config.txt enable_uart=1

usb console:
enable /etc/inittab, ttyS0 line
enable /boot/cmdline.txt console=ttyS0,115200

Find Pi:
sudo nmap -sP 192.168.0.0/24 | awk '/^Nmap/{ipaddress=$NF}/B8:27:EB/{print ipaddress}'

Pin-out:
skip 2,
black
white
green


stop:
csi_w "mtvel=0;"
wait for "=mvel;" to be zero

move:
csi_w "mtvel=%d;",  (mp)->sign * floor((mp)->step * (mp)->cvel / (2*PI) + 0.5)

set pos
csi_w "etpos=%.0f;", mip->esign * mip->estep * mip->dpos / (2*PI)


read pos:
telescoped.csi/tel.c 1383
	raw = csi_rix (MIPSFD(mip), "=epos;");
	draw = abs(raw - mip->raw)==1 ? (raw + mip->raw)/2.0 : raw;
	mip->raw = raw;
	mip->cpos = (2*PI) * mip->esign * draw / mip->estep;

deg * (pi/180) = rad
rad * (180/pi) = deg


360 degree in encoder steps = 12976128
1 degree = 36044.8 encoder steps

Say Polaris is:
J2000 2h 31m 50.97s or (37.95456067)
and 90 degress to that is HIP 86681 A:
J2000 17h 42m 38.42s or (265.659903685341)

ra encoder zero = north
apparent ra increases west
apparent ra of 180 is south
apparent ra of 270 is east

HIP 118268, W Pcs, vernal equinox

Camera filters:
slot1 = clear
slot2 = Red
slot3 = Green
slot4 = Blue
slot5 = empty

ra limit: 14,156,229


00> findlim(1);
1 Seeking limit
0 Found limit
00> =epos;
13,512,731
00> findlim(-1);
1 Seeking limit
0 Found limit
00> =epos;
101,040

00> findhom(1);
2: backing up...
1: fine tuning at 15000
2: backing up...
1: fine tuning at 1500
2: backing up...
1: fine tuning at 150
2: backing up...
1: fine tuning at 15
2: backing up...
1: fine tuning at 1
0: done!
00> =epos;
0


-3460811
-178948
3028556

6462284 + abs(-6998176) = 13460460


01> findlim(1);
1 Seeking limit
0 Found limit
01> =epos;
2867311


01> findlim(-1);
1 Seeking limit
0 Found limit
01> =epos;
-3706421


00> findlim(1);
1 Seeking limit
0 Found limit
00> =epos;
6723762


findlim(-1);
1 Seeking limit
0 Found limit
00> =epos;
-6699665

00> mtvel=200;
00> mtvel=800;
00> mtvel=1200;
00> mtvel=2200;
00> mtvel=3200;
00> mtvel=6200;
00> mtvel=600;
00> mtvel=1600;
00> mtvel=00;
00> =epos;
-6272507

dec axis level:

01> =epos;
-3360397

01> findlim(1);
1 Seeking limit
0 Found limit
01> =epos;
2854458


01> report();
  1425009  -963704        0 -3701828 0 0 1
01>