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ImogenWren

low-poly-studio·esp32-faerfly·pcb-esp32-faerfly/ImogenWren.kicad_pcb

ImogenWren PCB layout, top view — open source ESP32 board by low-poly-studio
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About the ImogenWren PCB

ImogenWren is an open source ESP32 PCB design by low-poly-studio, published on GitHub. It is a 4-layer board measuring 85.1 × 53.3 mm, with 83 components from 40 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the MCP73831-2-OT, AMS1117-3.3 and CH340C. By type, the board carries 26 capacitors, 17 resistors, 12 LEDs, 10 connectors, 4 ICs and 3 jumpers.

It belongs with the dev boards & breakouts, power & battery and usb & debug tools designs in this gallery.

From the project

Imogen Wren Business Card Light Show PCB

The project is a business card that can be handed out at gigs and work, and also a fun project to build!

1. Mini pocket lightshow. Rechargable and interactive. Probably get it fabbed so it isnt a soldering project, but include a programming port so it can be reprogrammed easily. Advantages: - Fun programming challenge - Can link to repo with working code in case of bricking - Card more likely to be used in the open and interacted with over time - Would have to be handed out with everything attached - Could exclude battery and make a point of indicating to reuse broken disposible vape for…

ImogenWren, from the project README
From the project README

Main components on the ImogenWren

MCP73831-2-OTAMS1117-3.3ESP32-WROOM-32CH340C

ImogenWren bill of materials (BOM)

83 components, 40 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP73831-2-OT
U1
1
AMS1117-3.3
U2
1
ESP32-WROOM-32
U3
1
CH340C
U4
2
BC817
Q1, Q2
1
LiPo_4v2
J1
1
SDI/SDO
J2
1
WS2821b
J3
1
gpio-B
J4
1
touch0
J5
1
Touch Pins
J6
1
DAC/ADC
J7
1
USB_C_Receptacle
J8
1
i2c-header
J9
1
ESPpin1-4
J10
1
1000U
1000u
EC1
1
I Prog
JP1
1
usb/batt
JP2
1
led-data
JP3
1
led-pwr
JPw1
Show 20 more
QtyPartRefs
1
SW_SPDT_small
SW1
1
BOOT
SW2
1
EN
SW3
12
WS2812B
WLED1, WLED2, WLED3, WLED4, WLED5, WLED6, WLED7, WLED8 +4
1
Blue
D1
2
BZV55B3V3
D2, D3
1
FerriteBead
FB1
20
100N
100n
C1, C2, C3, C4, C5, C6, C7, C10 +12
1
10N
10n
C8
2
47P
47p
C9, C11
1
4N7
4n7
C12
2
4U7
4u7
C25, C26
6
10K
10k
R1, R2, R8, R9, R10, R11
1
4K7
4k7
R3
2
27R
27r
R4, R5
1
470R
470r
R6
1
330R
330r
R7
1
4K7
5k2
R12
3
1k
R13, R14, R17
2
100R
100r
R15, R16

ImogenWren design files

The KiCad project lives in the low-poly-studio/esp32-faerfly repository on GitHub; these links point at the commit this page was built from.

ImogenWren: common questions

What microcontroller does the ImogenWren use?

The ImogenWren is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the ImogenWren PCB?

The ImogenWren measures 85.1 × 53.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ImogenWren?

83 components, from 40 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 ImogenWren design files?

From the low-poly-studio/esp32-faerfly 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 ImogenWren design in my own project?

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

Can I test firmware for the ImogenWren 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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