gca173_wheel_counter-en
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| gca173_wheel_counter-en [2025/05/02 16:21] – [Firmware] phg | gca173_wheel_counter-en [2025/06/09 21:56] (current) – [Introduction] phg | ||
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| The use of a very small opto-gate of Sharp, type GP1S097HCZF makes this new idea a nice feature.\\ | 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.\\ | 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.\\ | additional FET transistor to correct that.\\ | ||
| At the same time, this correction avoids a lot of current consumption, | At the same time, this correction avoids a lot of current consumption, | ||
| - | + | 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 | + | This GCA173i unit is to be connected |
| The sensor itself should be mounted at the bottom of the pc-board, opposite of\\ | The sensor itself should be mounted at the bottom of the pc-board, opposite of\\ | ||
| the other parts.\\ | the other parts.\\ | ||
| The three connection points are to solder wires to connect them to the Hall sensor connectors of GCA173,\\ | 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 | + | or even a small PSS 254/3W connector could be used, In that situation there probably |
| the underlay under the rails. | the underlay under the rails. | ||
| ^ Connections to GCA173 | ^ Connections to GCA173 | ||
| | These connections match the way hall sensors are connected | | These connections match the way hall sensors are connected | ||
| - | | 1 | +5 Volt | | + | | 1 | +5 Volt | |
| | 2 | 0V | | 2 | 0V | ||
| | 3 | S | signal | | 3 | S | signal | ||
| Line 43: | Line 43: | ||
| as a 80 mSec pulse train.\\ | as a 80 mSec pulse train.\\ | ||
| This assures that no wheel is missed even in higher speeds and/or shorter distance between the wheels.\\ | This assures that no wheel is missed even in higher speeds and/or shorter distance between the wheels.\\ | ||
| - | GCA173 | + | The GCA173_wheel_counter |
| - | For higher speeds, firmware GCA173_wheel_counter | + | 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.\\ | 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\\ | Rocrail is perfectly made for that, and addionally there will be special firmware available inide the GCA173\\ | ||
gca173_wheel_counter-en.1746195704.txt.gz · Last modified: 2025/05/02 16:21 by phg