HardLabs

Minimap

lucapoulos·minimap·artifacts/pcb/minimap-pcb-v1/minimap-pcb-v1.kicad_pcb

Minimap PCB layout, top view — open source ESP32 board by lucapoulos

About the Minimap PCB

Minimap is an open source ESP32 PCB design by lucapoulos, published on GitHub. It is a 4-layer board measuring 48 × 55.4 mm, with 74 components from 36 distinct parts.

Its main chip is the ESP32-S2-SOLO, from the ESP32 family. Other key parts include the MCP73871-1CC, AP2127K-3.3, ICM-20948, RFM95W-915S2 and PCA9306DC. By type, the board carries 24 resistors, 22 capacitors, 11 ICs, 5 connectors, 3 diodes and 2 fuses.

From the project

peripheral_pins.md is the most accurate description of our breadboard pinout for each device

peripheral_pins.md is the most accurate description of our breadboard pinout for each device

149ProjectDoc.pdf is a current reflection of our high level ideas and any calculations we've done.

Minimap, from the project README
From the project README

Main components on the Minimap

ESP32-S2-SOLOMCP73871-1CCAP2127K-3.3ICM-20948RFM95W-915S2PCA9306DCBQ297XYCD_PA1616TPD2EUSB30Switch

Minimap bill of materials (BOM)

74 components, 36 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S2-SOLO
U1
1
MCP73871-1CC
U2
2
~
U3, U11
1
AP2127K-3.3
U4
1
ICM-20948
U5
1
RFM95W-915S2
U6
1
PCA9306DC
U7
1
BQ297XY
BQ297xy
U8
1
CD_PA1616
U9
1
TPD2EUSB30
U10
1
Switch
A1
1
Conn_Batt
J1
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
J2
2
Conn_Coaxial
J4, J5
1
CONN_01X07_PIN
Conn_01x07_Pin
J6
1
Boot
BOOT1
2
Fuse_Small
F1, F2
1
Reset
RESET1
1
10K
10k
TH1
2
TestPoint
TP1, TP2
Show 16 more
QtyPartRefs
1
Switch
B1
3
LED
D1, D2, D3
13
.1uF
C1, C3, C4, C7, C8, C9, C10, C11 +5
5
1UF
1uF
C2, C12, C15, C18, C20
1
10UF
10uF
C5
2
4.7UF
4.7uF
C6, C19
1
0.1UF
0.1uF
C14
11
10K
10k
R1, R2, R12, R16, R17, R18, R21, R23 +3
1
20K
20k
R3
5
470
R4, R5, R6, R19, R20
1
1k
R7
2
5.1K
5.1k
R9, R10
1
2.2K
2.2k
R13
1
330
R14
1
1.2K
1.2k
R15
1
200K
200k
R25

Minimap design files

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

Minimap: common questions

What microcontroller does the Minimap use?

The Minimap is built around the ESP32-S2-SOLO, from the ESP32 family.

How big is the Minimap PCB?

The Minimap measures 48 × 55.4 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Minimap?

74 components, from 36 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 Minimap design files?

From the lucapoulos/minimap 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 Minimap design in my own project?

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

Can I test firmware for the Minimap 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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