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RTB C13

git4dcc·RTB_C13

RTB C13 PCB layout, top view — open source AVR/Arduino board by git4dcc
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About the RTB C13 PCB

RTB C13 is an open source AVR/Arduino PCB design by git4dcc, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 80 × 40.1 mm, with 91 components from 39 distinct parts.

Its main chip is the AVR-64DA48, from the AVR/Arduino family. Other key parts include the 74HC595BQ,115, MPM3610AGQV-P, THVD1450DRBR, MIC5235-3.3 and INA181-A1. By type, the board carries 39 resistors, 18 ICs, 17 diodes, 14 capacitors, 2 transistors and 1 crystal.

It belongs with the sensors designs in this gallery.

From the project

4 Channel RailCom and Block Occupancy Detector

My homebrew RTB C13 track sensor features a 4 channel RailCom® detector, real-time block occupancy monitoring, and dedicated short-circuit protection. It also includes a built-in EDG bus interface, allowing for seamless accessory fan-out and expanded system integration.

- RTBC10 - Master - RTBC11 - Power - RTB_C12 - Booster

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

RTB C13, from the project README
From the project README

Main components on the RTB C13

74HC595BQ,115MPM3610AGQV-PTHVD1450DRBRAVR-64DA48MIC5235-3.3INA181-A1INA381INA181-A4

RTB C13 bill of materials (BOM)

91 components, 39 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
74HC595BQ,115
IC1
1
MPM3610AGQV-P
MPM3610AGQV
IC2
1
THVD1450DRBR
IC9
1
AVR-64DA48
U1
1
MIC5235-3.3
U2
4
INA181-A1
U3, U7, U10, U13
8
INA381
U5, U6, U8, U9, U11, U12, U14, U15
1
INA181-A4
U16
1
BC848
Q1
1
BC857BS
Q3
1
C1987527
ASE-xxxMHz
X1
11
SS34FA
D1, D4, D15, D16, D17, D18, D19, D20 +3
1
C191023
D_Small
D22
3
C153761
Schottky
D25, D30, D31
2
Schottky
D26, D27
5
1u
C1, C2, C3, C4, C9
3
100N
100n
C6, C10, C13
1
22U/10V
22u/10V
C7
1
10U/25V
10u/25V
C8
1
100N
100n
C11
Show 19 more
QtyPartRefs
1
22U/6.3V
22u/6.3V
C12
1
2.2U
2.2u
C26
1
10U/25V
10u/25V
C27
1
160
R1
4
0.1
R2, R17, R19, R22
5
22
R3, R18, R21, R23, R27
1
3.3K
3.3k
R4
4
3.3K
3.3k
R5, R6, R28, R72
2
100K
100k
R7, R8
8
4.7K
4.7k
R9, R10, R11, R12, R13, R14, R15, R16
1
160
R20
2
1k
R24, R26
1
0.01
R25
1
68K
68k
R29
1
13K
13k
R30
2
2.2K
2.2k
R31, R32
2
220K
220k
R34, R35
2
9.1K
9.1k
R36, R37
2
100
R78, R79

RTB C13 design files

The KiCad project lives in the git4dcc/RTB_C13 repository on GitHub; these links point at the commit this page was built from.

RTB C13: common questions

What microcontroller does the RTB C13 use?

The RTB C13 is built around the AVR-64DA48, from the AVR/Arduino family.

How big is the RTB C13 PCB?

The RTB C13 measures 80 × 40.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RTB C13?

91 components, from 39 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the RTB C13 design files?

From the git4dcc/RTB_C13 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the RTB C13 design in my own project?

Yes, under the terms of its Apache-2.0 license, which git4dcc chose for the repository.

Can I test firmware for the RTB C13 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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