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H-C6-ulp

martinberlin·H-C6-ulp

H-C6-ulp PCB layout, top view — open source ESP32 board by martinberlin

About the H-C6-ulp PCB

H-C6-ulp is an open source ESP32 PCB design by martinberlin, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 53.5 × 33 mm, with 70 components from 39 distinct parts.

Its main chip is the C6908287, from the ESP32 family. Other key parts include the C5153500, C12044 and K2-1806SQ-A2DW-04. By type, the board carries 23 capacitors, 19 resistors, 6 ICs, 6 diodes, 5 connectors and 4 inductors.

It belongs with the displays & leds designs in this gallery.

From the project

ESP32C6 in a very low power design with a 24 pin FPC for a small SPI Epaper

This PCB design is based on C6 design guidelines and uses the Buck converter schematic of Seeed XIAO C6 SGM6029

Failed release v1.0: We forgot to add SPI flash. Oh yeah, you won't flash it!

H-C6-ulp, from the project README
From the project README

Main components on the H-C6-ulp

C6908287C5153500C12044K2-1806SQ-A2DW-04

H-C6-ulp bill of materials (BOM)

70 components, 39 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C6908287
ESP32-C6FH4
U1
1
C5153500
SGM6029CYG/TR
U2
1
C12044
TP4057-42-SOT26-R
U3
3
K2-1806SQ-A2DW-04
U4, U5, U6
1
C4322213
Si1308
Q1
1
C10487
Si2301CDS
Q2
1
C555614
Crystal 40 Mhz 10ppm
X1
1
C5127802
RV-3032-C7
Y1
1
C165948
USB_C_Receptacle_USB2.0
J1
1
C262292
AFC24-S24FIC-00
J2
1
SM02B-SRSS-TB(LF)(SN)
J3
1
SM04B-SRSS-TB(LF)(SN)
SM04B-SRSS-TB_LF__SN_
J4
1
OLED
J5
1
C3285081
2450AT42E0100E
ANT1
2
C325005
SW_Push_Dual
SW1, SW2
3
C77336
MBR0530
D1, D2, D3
1
C84256
RED
D4
1
C8598
1N5817
D5
1
C2297
GRE
D6
2
C5252358
L
L1, L4
Show 19 more
QtyPartRefs
1
C329586
0.47 uH
L2
1
C38117
10uH
L3
2
C162161
1uF
C1, C19
2
C6119874
10 uF
C2, C3
3
C5119318
22pF
C4, C5, C23
6
C1779
4.7uF
C6, C7, C11, C13, C14, C15
4
C28323
1uF
C8, C9, C10, C12
1
C1779
4.7uF 50V
C16
1
C19666
4.7uF
C17
1
C15850
10uF
C18
2
C327087
0.1uF
C20, C21
1
superCAP
C24
7
C23186
5.1k
R1, R9, R11, R13, R14, R15, R20
7
C25804
10k
R2, R7, R10, R16, R17, R18, R19
1
C6945215
249k 1%
R3
1
C25804
10 K
R4
1
C21189
0Ω
R6
1
C103895
0.47R
R8
1
C17520
2K2
R12

H-C6-ulp design files

The KiCad project lives in the martinberlin/H-C6-ulp repository on GitHub; these links point at the commit this page was built from.

H-C6-ulp: common questions

What microcontroller does the H-C6-ulp use?

The H-C6-ulp is built around the C6908287, from the ESP32 family.

How big is the H-C6-ulp PCB?

The H-C6-ulp measures 53.5 × 33 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the H-C6-ulp?

70 components, from 39 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 H-C6-ulp design files?

From the martinberlin/H-C6-ulp 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 H-C6-ulp design in my own project?

Yes, under the terms of its GPL-3.0 license, which martinberlin chose for the repository.

Can I test firmware for the H-C6-ulp 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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