HardLabs

TinyTracker

daveshah1·TinyTracker·hardware/rev0/ub-minimal.kicad_pcb

TinyTracker PCB layout, top view — open source STM32 board by daveshah1

About the TinyTracker PCB

TinyTracker is an open source STM32 PCB design by daveshah1, published on GitHub under the MIT license. It is a 4-layer board measuring 38 × 16 mm, with 65 components from 42 distinct parts.

Its main chip is the STM32F048GUx, from the STM32 family. Other key parts include the SX1276, M10478, CAT24M01, MS5637 and LM3671. By type, the board carries 30 capacitors, 15 resistors, 8 inductors, 6 ICs, 2 connectors and 2 diodes.

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

From the project

Tiny LoRa-based GPS tracker for balloon experiments

Currently no electronics have been built, but an initial design has been made using KiCad. This is untested and likely has some mistakes. It features:

M10748 GPS SX1276 based LoRa radio with TCXO (for ultimate performace with very low data rates) STM32F048 MCU MS5637 temperature/pressure sensor * CAT24M01 EEPROM for logging

It is designed to run off a small lithium polymer battery such as PRT-00731 which, depending on logging and transmission interval, should give a battery life of over 10 hours.

Main components on the TinyTracker

SX1276M10478STM32F048GUxCAT24M01MS5637LM3671

TinyTracker bill of materials (BOM)

65 components, 42 distinct parts.

QtyPartRefs
1
SX1276
U2
1
M10478
U3
1
STM32F048GUx
U4
1
CAT24M01
U5
1
MS5637
U6
1
LM3671
U8
1
32M
X1
1
ANT
P1
1
CONN_01X06
P2
1
LiPoly
BT1
1
RED
D1
1
GREEN
D2
1
*18nH
L2
1
47nH
L3
1
22n
L4
1
12n
L5
1
18n
L6
2
DNP
L7, L8
1
74479787222
L9
2
10p
C1, C3
Show 22 more
QtyPartRefs
2
10u
C2, C32
5
100n
C4, C5, C7, C8, C10
1
10n
C6
3
47p
C9, C12, C15
1
*2.2p
C11
1
6.8p
C13
1
100p
C14
1
15p
C16
1
12p
C17
1
4.7p
C18
1
2.2u
C19
1
18p
C20
3
22p
C21, C22, C23
4
1u
C24, C25, C26, C27
1
8.2p
C28
1
4.7u
C31
7
10k
R1, R2, R4, R5, R6, R9, R10
1
0
R3
4
100k
R7, R8, R12, R15
1
2.2k
R11
1
300k
R13
1
220
R14

TinyTracker design files

The KiCad project lives in the daveshah1/TinyTracker repository on GitHub; these links point at the commit this page was built from.

TinyTracker: common questions

What microcontroller does the TinyTracker use?

The TinyTracker is built around the STM32F048GUx, from the STM32 family.

How big is the TinyTracker PCB?

The TinyTracker measures 38 × 16 mm, has 4 copper layers and is 1 mm thick.

How many components are on the TinyTracker?

65 components, from 42 distinct parts. The full bill of materials is listed on this page.

Where can I download the TinyTracker design files?

From the daveshah1/TinyTracker repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the TinyTracker design in my own project?

Yes, under the terms of its MIT license, which daveshah1 chose for the repository.

Can I test firmware for the TinyTracker without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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