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PCB Coaster

StuckAtPrototype·PCB_Coaster·hardware/coaster.kicad_pcb

PCB Coaster layout, top view — open source ESP32 board by StuckAtPrototype
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About the PCB Coaster

PCB Coaster is an open source ESP32 PCB design by StuckAtPrototype, published on GitHub. It is a 2-layer board measuring 90 × 90 mm, with 70 components from 23 distinct parts.

Its main chip is the ESP32-H2-MINI-1, from the ESP32 family. Other key parts include the AP2205. By type, the board carries 28 capacitors, 17 resistors, 11 LEDs, 6 connectors, 3 ICs and 3 switches.

From the project

These are structured into their own files. I could have used submodules, but decided against it.

PCB Coaster, from the project README
From the project README

Main components on the PCB Coaster

AP2205ESP32-H2-MINI-1

PCB Coaster bill of materials (BOM)

70 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
AP2205
U1, U3
1
ESP32-H2-MINI-1
U2
1
BSS138
Q1
1
Conn_01x16_Socket
J1
1
USB_C_Plug_USB2.0
P1
4
~
P2, P3, P4, P5
2
TL4100AF240QG_
S1, S2
1
TL1016AAF220QG
S3
11
IN-PI15TAT5R5G5B
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +3
1
TPD1E10B06DPYR
D1
3
2.2uF
C1, C19, C25
2
10uF
C2, C26
16
0.1uF
C3, C4, C5, C6, C7, C8, C9, C10 +8
2
4.7uF
C12, C27
2
1uF
C14, C15
1
47uF
C16
2
1uF 25V
C20, C22
8
10k
R1, R2, R7, R8, R13, R14, R16, R18
1
470
R3
2
5k1
R4, R5
Show 3 more
QtyPartRefs
1
1M
R6
4
1.43K
R9, R10, R11, R12
1
100k
R17

PCB Coaster design files

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

PCB Coaster: common questions

What microcontroller does the PCB Coaster use?

The PCB Coaster is built around the ESP32-H2-MINI-1, from the ESP32 family.

How big is the PCB Coaster?

The PCB Coaster measures 90 × 90 mm, has 2 copper layers and is 1.66 mm thick.

How many components are on the PCB Coaster?

70 components, from 23 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 PCB Coaster design files?

From the StuckAtPrototype/PCB_Coaster 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 PCB Coaster design in my own project?

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

Can I test firmware for the PCB Coaster 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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