Differences

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--- gca173-en [2023/05/14 15:11] – created - external edit 127.0.0.1
+++ gca173-en [2025/11/03 17:03] (current) – [Connection Hall sensor] phg
@@ Line 8: / Line 8: @@
 ^^^^By Peter Giling ^^^^
-|  This Unit is **NOT** 3V3 compatible  |
+|  **This Unit is NOT 3V3 compatible, because Hall-sensors need minimal 5V.**  |
@@ Line 90: / Line 90: @@
 \\
-===== One other interesting option with these sensors: =====
+===== One new interesting option with GCA173 =====
-Using Loc-combinations, where one is a s.c. 'dummy-loc', which is not taking any current from the track, this combination might stop too late, where current detection is used and the dummy is in front.\\
+Real simulation of railroad crossing is done fine if you control everything via Rocrail.\\
-The use of two magnets -one at each front- will solve this problem simple and easy.\\
+But many grandfathers might let there grandson or granddaugther play manual with their fantastic setup.\\
+In that case, the railroad needs manual control as well, which might be a bit difficult to do.\\
+positioning the turnouts might be already sometimes a step too far.\\
+Now for this GCA173 there is nice task available to control railroad crossing, totally autonomic.\\
+There are several options possible:\\
+  * a single track, used only for one direction railraod traffic.
+  * a single track, used for both directions.
+  * a double track, where trains can pass in both directions.
+All of these options are possible with a GCA173 with special firmware.\\
+An explanation -how to- will follow shortly.\\
  \\
@@ Line 116: / Line 125: @@
 ^  Type  ^  Size  ^
-|  1  |  Rod 4mm ∅ length 12,5 mm  |
+|  1  |  Cylinder 4mm ∅ length 12,5 mm  |
-|  2  |  Rod 4mm ∅ length 10 mm  |
+|  2  |  Cylinder 4mm ∅ length 10 mm  |
-|  3  |  Rod 3mm ∅ length 8 mm  |
+|  3  |  Cylinder 3mm ∅ length 8 mm  |
-|  4  |  Rod 3mm ∅ length 6 mm  |
+|  4  |  Cylinder 3mm ∅ length 6 mm  |
 |  5  |  Disc 5mm ∅ high 3 mm  |
 |  6  |  Cube 5mm  |
@@ Line 149: / Line 158: @@
 The connection wires between Hallsensor and GCA173 can be up to 6' or 2 meter.\\
 Please be careful not to feed those wires parallel with rails and rail wires.\\
-A bit of twisting these wires will inprove protection to any distorsion.\\
 If that is inevitable, keep a distance of 4'' (10cm).\\
+A bit of twisting these wires will inprove protection to any distorsion.\\
 Straight angle crossing is no problem.\\
 Below you can download a drawing of hallsensor connection.\\
@@ Line 159: / Line 168: @@
 ===== Connection to reed-switch =====
-Allthough GCA173 can work fine with reed-switch as wel, the option for wheel counter is NOT applicable.\\
+Allthough GCA173 can work fine with reed-switch as well, the option for wheel counter is NOT applicable.\\
 This due to the fact the the number of pulses, generated on the passing of a magnet is never the same, and unpredictable.\\
 {{:mgv:hardware:connection_reed-switch.pdf|connection to reed-switch}}\\
@@ Line 188: / Line 197: @@
 ^N.B. Self made pc-boards are not supported! ^
 \\
+\\
+^      Housing is only for DIY 3D printing.  ^
+|  {{ :gca:gca173_box.zip |  Box and cover for GCA173}}  |
+\\
 ===== Firmware =====
 {{:gca:gca173_v1_4_firmware.zip}}\\
@@ Line 194: / Line 206: @@
 Timing is close to 80 mSec.\\
 {{:gca:firmware:gca173_v1_5_firmware.zip}}\\
-Version 1_5 has a better startup sequence. It will send all actual sensor positions\\
+Version 1_5 has a better startup sequence. It will initial send all actual sensor positions\\
 ===== Pictures from satisfied customers =====