1.1 KiB
1.1 KiB
DCC-Lokdecoder
Description
DCC multifunction decoder for H0 locomotives
Features
- 1 motor H-bridge output
- 3.6 A peak current
- PWM frequency configurable (1-40 kHz)
- overcurrent and temperature protected
- 10 function outputs
- 115 mA per output
- F0f, F0r, AUX1 and AUX2 are dimmable todo
- mappable to F0-F12 function keys
- DCC asymmetry can be detected (for automatic brake control) todo
Hardware
- 4-layer PCB esigned in KiCAD
- fairly standard components (available from Digi-Key, Farnell, Mouser, etc...)
- hand solderable (I did it too)
- 4 debug LEDs (red, yellow, green and blue)
 |
 |
|---|---|
| top side | bottom side |
Firmware
- Arduino compatible programming (behaves like an UNO)
- DCC decoding by NMRADCC library
JMRI integration
Todo list
- CV15, CV16 decoder locking
- CV65 kick start
- CV67-94 speed table
- CV27 automatic brake control
- function output dimming
- motor fault check