HardLabs

RelayTracker

bask185·Train-Science-DIY·PCB_SOURCE/relayTracker/relayTracker.kicad_pcb

RelayTracker PCB layout, top view — open source AVR/Arduino board by bask185

About the RelayTracker PCB

RelayTracker is an open source AVR/Arduino PCB design by bask185, published on GitHub. It is a 2-layer board measuring 41.5 × 94.5 mm, with 68 components from 16 distinct parts.

Its main chip is the ATMEGA328-A, from the AVR/Arduino family. Other key parts include the EL814. By type, the board carries 29 diodes, 18 resistors, 5 ICs, 4 transistors, 4 relays and 4 switches.

Main components on the RelayTracker

ATMEGA328-AEL814

RelayTracker bill of materials (BOM)

68 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA328-A
ATmega328-A
U202
4
EL814
U301, U501, U601, U701
4
C2145
NPN_TOR
Q301, Q501, Q601, Q701
1
CRYSTAL_GND2
Crystal_GND2
Y201
4
C397192
G6K-2F-Y-TR DC12
K301, K501, K601, K701
4
SW_Push
SW301, SW501, SW601, SW701
9
LED
D201, D301, D307, D501, D507, D601, D607, D701 +1
4
1N4148WS
D302, D502, D602, D702
16
SS53
D303, D304, D305, D306, D503, D504, D505, D506 +8
2
12PF
12pF
C201, C203
1
100NF
100nF
C202
1
6K2
6k2
R201
1
10K
10k
R202
8
3K3
3k3
R301, R304, R501, R504, R601, R604, R701, R704
4
1k
R302, R502, R602, R702
4
47R
R303, R503, R603, R703

RelayTracker design files

The KiCad project lives in the bask185/Train-Science-DIY repository on GitHub; these links point at the commit this page was built from.

RelayTracker: common questions

What microcontroller does the RelayTracker use?

The RelayTracker is built around the ATMEGA328-A, from the AVR/Arduino family.

How big is the RelayTracker PCB?

The RelayTracker measures 41.5 × 94.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RelayTracker?

68 components, from 16 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 RelayTracker design files?

From the bask185/Train-Science-DIY 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 RelayTracker design in my own project?

The repository has no license, so all rights stay with bask185. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the RelayTracker 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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