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--- gca173_wheel_counter-en [2024/12/16 16:34] – created - external edit 127.0.0.1
+++ gca173_wheel_counter-en [2025/06/09 21:56] (current) – [Introduction] phg
@@ Line 16: / Line 16: @@
 The use of a very small opto-gate of Sharp, type GP1S097HCZF makes this new idea a nice feature.\\
 The slot opening is just enough to match the size of the HO and N wheel flanges.\\
-Because the input from the opto-gate is reversed in comparison with a hall sensor, this sesnor baord has an\\
+Because the input from the opto-gate is reversed in comparison with a hall sensor, this sensor board has an\\
 additional FET transistor to correct that.\\
 At the same time, this correction avoids a lot of current consumption, and the GCA173 does require any changes.\\
+To avoid any change in the way LocoNet, Cbus, Rocnet and or WIO modules need different settings:\\
+different firmware is available for the GCA173, to invert the output.\\
-This board is to be connected  to the hall sensor connectors.\\
+This GCA173i unit is to be connected  to the hall sensor connectors.\\
 The sensor itself should be mounted at the bottom of the pc-board, opposite of\\
 the other parts.\\
 The three connection points are to solder wires to connect them to the Hall sensor connectors of GCA173,\\
-or even a small PSS 254/3W connector could be used, In that situation there probably shoul be made some space in \\
+or even a small PSS 254/3W connector could be used, In that situation there probably should be made some space in \\
-bas underlay under the rails.
+the underlay under the rails.
 ^  Connections to GCA173  ^^  remark  ^
 |  These connections match the way hall sensors are connected  |||
-|  1  |  +5 Volt  |  = square pad  |
+|  1  |  +5 Volt  |  indicated by square pad  |
 |  2  |  0V   |   |
 |  3  |  S  |  signal  |\\
@@ Line 43: / Line 43: @@
 as a 80 mSec pulse train.\\
 This assures that no wheel is missed even in higher speeds and/or shorter distance between the wheels.\\
-GCA173 firmware, up until now, will be able to use on speeds below ca 20 mm/sec.\\
+The GCA173_wheel_counter firmware, up until now, will be able to use on speeds down to ca 20 mm/sec.\\
-For higher speeds, firmware GCA173_wheel_counter version >1 is recommanded. \\
+For higher speeds, firmware GCA173_wheel_counter is recommanded. \\
 Then, there will be an internal counter separately for each of the 8 ports, to count, and count down after transmitting.\\
 Rocrail is perfectly made for that, and addionally there will be special firmware available inide the GCA173\\
@@ Line 61: / Line 61: @@
 |  {{ :gca:gca173_wheel_counter_pcb_f.pdf | the pcb front }}  |
 |  {{ :gca:gca173_wheel_counter_pcb_b.pdf | the pcb back side with sensor }}  |
+|  {{ :gca:gca173_with_8_x_gca173_wheel_counter_units.pdf | Parts for the complete GCA173 with 8 x GCA173 wheel-counter units}}  |
 ===== Firmware  =====
-|  {{ :gca:gca173_opto-gate.zip | The firmware adapted to opto gate}}  |  real wheel counter firmware will follow shortly   |
+|  {{ :gca:firmware_for_opto_gate.zip | The firmware adapted to opto gate}}  |  GCA173 transmits correct amount of pulses   |
+//
+The firmware  for standalone railroadcrossing control is available, but depends on the choice of many options.//
+Please ask [[peter@phgiling.net|Peter]]
-More after pcb production and test.