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LIA

JGAguado·LIA·hardware/kicad/LIA.kicad_pcb

LIA PCB layout, top view — open source ESP32 board by JGAguado

About the LIA PCB

LIA is an open source ESP32 PCB design by JGAguado, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 79 × 30 mm, with 66 components from 31 distinct parts.

Its main chip is the ESP32-S3-MINI-1-N8, from the ESP32 family. Other key parts include the SAM-M10Q-00B, WIO-SX1262, TPD2EUSB30, C2765186 and RT9080-33GJ5. By type, the board carries 31 resistors, 11 ICs, 11 capacitors, 4 transistors, 4 LEDs and 1 connector.

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

From the project

Low-power pet tracking platform built around Meshtastic and LoRa mesh networking

LIA is an open-source, low-power pet and asset tracker built on top of Meshtastic and LoRa mesh networking. It's designed to be a compact, long-range, subscription-free tracking device that keeps working off-grid — no cell coverage, no monthly fee, no cloud dependency.

- Long-range LoRa communication over the open Meshtastic protocol - GPS/GNSS location tracking, sent only as a direct message to a predefined target node — not visible to the wider public mesh - A physical 3-position mode switch: continuous tracking (LED on, position every 30s), a low-power sleep cycle (wake roughly once a…

LIA, from the project README
From the project README

Main components on the LIA

ESP32-S3-MINI-1-N8SAM-M10Q-00BWIO-SX1262TPD2EUSB30C2765186RT9080-33GJ5TP4056MAX17048G+T10DW01ALSM6DSOXTR

LIA bill of materials (BOM)

66 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-MINI-1-N8
U1
1
SAM-M10Q-00B
U2
1
WIO-SX1262
Wio-SX1262
SenseCAP
U3
1
TPD2EUSB30
U5
1
C2765186
TYPE-C_16PIN_2MD(073)
U6
2
RT9080-33GJ5
U7, U11
1
TP4056
U8
1
MAX17048G+T10
U9
1
DW01A
U10
1
LSM6DSOXTR
ST(意法半导体)
U12
1
8205A
VBsemi(微碧半导体)
Q1
3
AO3400A
Q2, Q3, Q4
1
POGO-4P-FEM
J2
1
Battery
BT1
2
TS-1088-AR02016
PB1, PB2
1
SSSS223900
ALPSALPINE(阿尔卑斯阿尔派)
SW1
4
MHS110CRGBCT
MEIHUA(美华)
LED1, LED2, LED3, LED4
1
22UF
22uF
C1
1
1UF
1uF
C2
1
4.7UF
4.7uF
C3
Show 11 more
QtyPartRefs
2
2.2UF
2.2uF
C4, C6
2
10UF
10uF
C5, C7
4
0.1UF
0.1uF
C8, C9, C10, C11
10
10K
10k
R1, R4, R5, R9, R10, R11, R23, R24 +2
2
5.1K
5.1k
R2, R3
2
22
R6, R7
4
68R
R8, R16, R19, R28
1
1k
R12
1
100
R13
8
22R
R14, R15, R17, R18, R20, R21, R29, R30
3
100R
R22, R25, R27

LIA design files

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

LIA: common questions

What microcontroller does the LIA use?

The LIA is built around the ESP32-S3-MINI-1-N8, from the ESP32 family.

How big is the LIA PCB?

The LIA measures 79 × 30 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the LIA?

66 components, from 31 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 LIA design files?

From the JGAguado/LIA 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 LIA design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the LIA without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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