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RTB_C13

Real-time Bus (RTB) Kicad_Libs Real-time Bus (RTB) Apache License 2.0

My homebrew RTB C13 track sensor provides 4 real-time feedback channels with current and Railcom detection. In addition, an EDG bus interface is provided for accessory fan out.

See also
User Guides

Track Sensor features

  • HDX
    • HDX bus (2Mbps half duplex, RS-485 differential)
  • EDG
    • EDG bus bridge (2Mbps half duplex, TTL level)
  • DCC
    • output for 4 individual feedback tracks
    • current measurement per track (>1mA)
    • short circuit detection /w tracks power-off
  • Railcom Detector
    • channel 1 / channel 2
    • detects unlimited number of decoder per track
    • real-time reporting
  • Current Sensor
    • 1mA current sensitivity
  • firmware update over the bus

Hardware

The PCB layout uses SMD footprints with 0.4mm pitch, 0603 parts down to 0402. Reflow soldering is mandatory. The PCB has been optimized for automated assembly (SMD parts are located on bottom side).

PCB

  • 2-layer PCB, FR4, 1.6mm
  • CPU: AVR64DB48

Kicad

Schematic | Layout | Gerber

Firmware

Filename structure: { pcb }{ code }{ version }.hex

Example: C13F0001.hex

Description
pcb Name of matching hardware (C13)
code Type of code contained (R=rom, B=bootloader, F=flash, U=bld update, P=UPDI factory code)
version Release version (####)

Firmware files

Images

This project is intended for hobby use only and is distributed in accordance with the Apache License 2.0 agreement.