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Capsicum

hutscape·capsicum·pcb/capsicum.kicad_pcb

Capsicum PCB layout, top view — open source ESP32 board by hutscape
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About the Capsicum PCB

Capsicum is an open source ESP32 PCB design by hutscape, published on GitHub. It is a 2-layer board measuring 70 × 55 mm, with 61 components from 29 distinct parts.

Its main chip is the ESP32-C3-WROOM-02-N4, from the ESP32 family. Other key parts include the PH1RB-04-UA, AP2112K-3.3TRG1 and MCP73831T-2ACI/OT. By type, the board carries 19 resistors, 13 capacitors, 7 jumpers, 7 diodes, 5 switches and 4 ICs.

It belongs with the iot & wireless and retro computing designs in this gallery.

From the project

🫑 Retrofit a wired doorbell to add WiFi and make it connected 🔔

Visit hutscape.com/capsicum for more details.

Capsicum, from the project README
From the project README

Main components on the Capsicum

ESP32-C3-WROOM-02-N4PH1RB-04-UAAP2112K-3.3TRG1MCP73831T-2ACI/OT

Capsicum bill of materials (BOM)

61 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3-WROOM-02-N4
ESP32-C3-WROOM-02
Espressif
U1
1
PH1RB-04-UA
R/A 4x1 2.54mm pin header
Adam Tech
U2
1
AP2112K-3.3TRG1
AP2112K
Diodes Incorporated
U3
1
MCP73831T-2ACI/OT
MCP73831
Microchip
U4
1
NTS2101PT1G
NS2101P
OnSemi
Q1
1
BC817-16LT3G
BC817
OnSemi
Q2
1
1935161
Screw terminal
Phoenix
J2
1
2137160001
USB-C 16+8 USB 2.0
Molex
J3
1
16320 / CR123A battery holder
EAEONXE
BT1
3
61300211121
SolderJumper_2_Open
Würth Elektronik
JP1, JP2, JP3
4
SOLDERJUMPER_2_BRIDGED
SolderJumper_2_Bridged
JP4, JP5, JP6, JP7
3
TL3305AF160QG
Push button
E-Switch
S1, S2, S3
1
CUS-12TB
SW_SPDT
Nidec Copal
SW1
1
JS102011JCQN
SW_SPDT
C&K
SW3
1
5015
Keystone
TP15
1
150060BS75000
Blue
Würth Elektronik
D1
1
PMEG3020EH,115
D_Schottky
Nexperia USA Inc.
D2
1
B1911UD--20D001014U1930
Orange
Harvatek Corporation
D3
2
150060YS75000
Yellow
Würth Elektronik
D4, D5
2
150060RS75000
Red
Würth Elektronik
D6, D7
Show 9 more
QtyPartRefs
6
CC0603KRX5R6BB106
10uF
C1, C2, C3, C4, C5, C11
5
06033D105MAT2A
1uF
C6, C7, C8, C12, C13
2
06033C104KAT4A
0.1uF
Kyocera
C9, C10
5
RC0603FR-0710KL
10k
YAGEO
R1, R7, R8, R13, R19
2
ERJ-3GEYJ512V
5.1k
Panasonic
R2, R5
6
RC0603FR-071KL
1k
Yageo
R3, R4, R11, R12, R14, R15
3
RMCF0603FT100K
100k
Stackpole
R6, R9, R10
1
RC0603FR-071ML
1M
YAGEO
R16
2
RC0603JR-0733RL
33R
YAGEO
R17, R18

Capsicum design files

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

Capsicum: common questions

What microcontroller does the Capsicum use?

The Capsicum is built around the ESP32-C3-WROOM-02-N4, from the ESP32 family.

How big is the Capsicum PCB?

The Capsicum measures 70 × 55 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Capsicum?

61 components, from 29 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 Capsicum design files?

From the hutscape/capsicum 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 Capsicum design in my own project?

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

Can I test firmware for the Capsicum 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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