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Gpstracker

blemasle·gpstracker-pcb

Gpstracker PCB layout, top view — open source AVR/Arduino board by blemasle
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About the Gpstracker PCB

Gpstracker is an open source AVR/Arduino PCB design by blemasle, published on GitHub under the MIT license. It is a 2-layer board measuring 79.3 × 59.2 mm, with 65 components from 41 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. Other key parts include the SIM808, MCP73831-2-OT, 24LC512, MCP1700T-3302E/TT and DS3231SN. By type, the board carries 19 capacitors, 19 resistors, 7 ICs, 7 LEDs, 6 connectors and 2 battery holders.

It belongs with the rf & radio and iot & wireless designs in this gallery.

From the project

Connected GPS tracker PCB

A custom Arduino 2 layers PCB done with Kicad meant to be use with a dedicated firmware. The result is a high autonomy GPS tracker that can be use to track moving vehicules.

See the firmware repository for more info.

On top of that, several ICs are needed : SIM808 : GPRS & GPS. DS3231 : Real Time Clock, used for time keeping and battery saving. * 24LCxxx : EEPROM used to buffer raw data before sending.

Gpstracker, from the project README
From the project README

Main components on the Gpstracker

SIM808MCP73831-2-OTATMEGA328P-AU24LC512MCP1700T-3302E/TTDS3231SNFT231XS

Gpstracker bill of materials (BOM)

65 components, 41 distinct parts.

QtyPartRefs
1
SIM808
IC1
1
MCP73831-2-OT
U1
1
ATMEGA328P-AU
U2
1
24LC512
U3
1
MCP1700T-3302E/TT
U4
1
DS3231SN
U5
1
FT231XS
U6
1
DMP1045U
Q1
1
Molex 105133-0002
J1
1
Leds
J2
1
47553-0001
J3
2
CONN_COAXIAL
J4, J5
1
Micro_SD_Card
J6
1
External battery
BT1
1
Backup battery
BT2
1
Reset
SW1
1
SMF05C
TV1
1
Chg
LED1
1
Done
LED2
1
Power
LED3
Show 21 more
QtyPartRefs
1
SIM_Power
LED4
1
Network
LED5
1
Rx
LED6
1
Tx
LED7
1
MMSZ5231B-7-F
D1
1
B130LAW
D3
4
4.7uF
C1, C3, C9, C10
7
0.1uF
C2, C4, C5, C7, C12, C14, C15
2
1uF
C6, C8
2
47pF
C11, C13
2
100uF
C16, C19
1
33pF
C17
1
10pF
C18
1
2k
R1
9
1k
R2, R3, R4, R5, R8, R9, R10, R18 +1
2
10k
R6, R13
1
100k
R7
1
160R
R11
1
20k
R12
2
51k
R14, R15
2
27R
R16, R17

Gpstracker design files

The KiCad project lives in the blemasle/gpstracker-pcb repository on GitHub; these links point at the commit this page was built from.

Gpstracker: common questions

What microcontroller does the Gpstracker use?

The Gpstracker is built around the ATMEGA328P-AU, from the AVR/Arduino family.

How big is the Gpstracker PCB?

The Gpstracker measures 79.3 × 59.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Gpstracker?

65 components, from 41 distinct parts. The full bill of materials is listed on this page.

Where can I download the Gpstracker design files?

From the blemasle/gpstracker-pcb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Gpstracker design in my own project?

Yes, under the terms of its MIT license, which blemasle chose for the repository.

Can I test firmware for the Gpstracker 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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