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Crazyflie audio

LCAV·crazyflie-audio·hardware/audio_shield_prod/audio_shield.kicad_pcb

Crazyflie audio PCB layout, top view — open source STM32 board by LCAV
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About the Crazyflie audio PCB

Crazyflie audio is an open source STM32 PCB design by LCAV, published on GitHub under the MIT license. It is a 2-layer board measuring 133 × 133 mm, with 113 components from 15 distinct parts.

Its main chip is the STM32F446RETx, from the STM32 family. Other key parts include the DS28E05P. By type, the board carries 42 connectors, 23 capacitors, 15 resistors, 7 microphones, 2 ICs and 1 inductor.

It belongs with the robotics & motion, audio and dev boards & breakouts designs in this gallery.

From the project

Code for recording audio on Crazyflie

This repository contains the hardware files, firmware and other documentation for the audio deck of the Crazyflie drone.

This repository is part of the experimental framework described in the paper:

The framework includes all components listed below. The components are kept modular so that researchers may focus only on what's relevant to them. For instance, to recreate the audio extension deck and perform more research on audio-based navigation on drones, only repository 2. is necessary; to run the audio-based algorithms in ROS but for a different robot, only repository 1. is enough as a…

Main components on the Crazyflie audio

STM32F446RETxDS28E05P

Crazyflie audio bill of materials (BOM)

113 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32F446RETx
U1
1
DS28E05P
U2
1
CONN_10_LEFT
J1
1
CONN_10_RIGHT
J2
6
mic_connector
J3, J4, J5, J6, J7, J8
34
Conn_01x02_Male
J10, J11, J12, J13, J14, J15, J16, J17 +26
23
TestPoint
3V0_1, 3V0_2, 3V0_3, 3V0_4, GND1, GND2, GND3, GND4 +15
7
SPH0645LM4H-B
MK1, MK2, MK3, MK4, MK6, MK7, MK8
1
2.2uH/15mA
L1
2
4.7u
C1, C9
13
100n
C2, C3, C4, C5, C6, C7, C11, C13 +5
1
1u
C8
7
220p
C10, C12, C14, C16, C20, C22, C24
8
10k
R1, R2, R4, R6, R8, R12, R14, R16
7
68
R3, R5, R7, R9, R13, R15, R17

Crazyflie audio design files

The KiCad project lives in the LCAV/crazyflie-audio repository on GitHub; these links point at the commit this page was built from.

Crazyflie audio: common questions

What microcontroller does the Crazyflie audio use?

The Crazyflie audio is built around the STM32F446RETx, from the STM32 family.

How big is the Crazyflie audio PCB?

The Crazyflie audio measures 133 × 133 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Crazyflie audio?

113 components, from 15 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 Crazyflie audio design files?

From the LCAV/crazyflie-audio repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Crazyflie audio design in my own project?

Yes, under the terms of its MIT license, which LCAV chose for the repository.

Can I test firmware for the Crazyflie audio without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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