HardLabs

Feather Duo

ISSUIUC·ISS-PCB·boards/Feather_Duo/Feather_Duo.kicad_pcb

Feather Duo PCB layout, top view — open source ESP32 board by ISSUIUC

About the Feather Duo PCB

Feather Duo is an open source ESP32 PCB design by ISSUIUC, published on GitHub. It is a 4-layer board measuring 40 × 40 mm, with 39 components from 21 distinct parts.

Its main chip is the ESP32-S3-MINI-1U, from the ESP32 family. Other key parts include the ECMF02-2AMX6, AMS1117-3.3 and E22-400MM22S. By type, the board carries 10 capacitors, 9 connectors, 8 resistors, 5 ICs, 5 diodes and 2 inductors.

It belongs with the rf & radio, dev boards & breakouts and sensors designs in this gallery.

From the project

Building custom flight computers

The Feather Duo radio receiver was conceived to optimize communication with MIDAS and simplify the team’s ground station setup, including two LoRa radios for concurrent reception from both stages and software support for increased data rates. It succeeds the Adafruit Feather M0 RFM96 as the team’s primary ground station receiver.

Read more about the Feather Duo, MIDAS and the surrounding avionics systems in the MIDAS MK2 Report.

Feather Duo, from the project README
From the project README

Main components on the Feather Duo

ESP32-S3-MINI-1UECMF02-2AMX6AMS1117-3.3E22-400MM22S

Feather Duo bill of materials (BOM)

39 components, 21 distinct parts.

QtyPartRefs
1
ESP32-S3-MINI-1U
U101
1
ECMF02-2AMX6
U102
1
AMS1117-3.3
U103
2
E22-400MM22S
U201, U301
5
Conn_01x04
J101, J102, J104, J105, J107
1
Conn_01x03
J103
1
USB4105-GF-A
J106
2
SMA
J201, J301
2
RED LED
D101, D105
1
ORANGE LED
D102
1
GREEN LED
D103
1
BLUE LED
D104
2
330nH
L201, L301
2
22uF
C101, C106
1
0.1uF
C102
2
1uF
C103, C104
3
10uF
C105, C201, C301
2
10nF
C202, C302
1
20k
R101
5
1k
R102, R103, R104, R105, R108
Show 1 more
QtyPartRefs
2
5.1k
R106, R107

Feather Duo design files

The KiCad project lives in the ISSUIUC/ISS-PCB repository on GitHub; these links point at the commit this page was built from.

Feather Duo: common questions

What microcontroller does the Feather Duo use?

The Feather Duo is built around the ESP32-S3-MINI-1U, from the ESP32 family.

How big is the Feather Duo PCB?

The Feather Duo measures 40 × 40 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Feather Duo?

39 components, from 21 distinct parts. The full bill of materials is listed on this page.

Where can I download the Feather Duo design files?

From the ISSUIUC/ISS-PCB repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Feather Duo design in my own project?

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

Can I test firmware for the Feather Duo 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.

More boards in ISS-PCB

Similar boards