Skip to the content
PCBKitNew board
2 layers96.5 × 88.9 mmBirdEar, the printed circuit board in 3D

The training data was fetched from xeno-canto

Size
96.5 × 88.9 mm
Copper layers
2
Thickness
1.6 mm
Parts
62
Nets
140
Pads
328
Tracks, vias
395, 55
Pours
2
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
29 Apr 2019
Updated
3 Jun 2020

Overview

BirdEar is an open-source printed circuit board by o7-machinehum, from the o7-machinehum/BirdEar repository on GitHub. It is a 2-layer board of 96.5 × 88.9 mm with 62 parts on 140 nets, routed with 395 tracks and 55 vias.

It is built around the LM324, LTR-303ALS-01 and SI7050-A20-IM, with the AZ1117EH-3.3TRG1 and CMA-4544PF-W among its other parts. Its parts include 25 capacitors, 15 resistors, 7 connectors, 5 ICs and 3 diodes. It belongs with the STM32 boards of this library.

Main components

5

README

README.md

BirdEar

Birdear is an open source hardware project that aims to build embedded hardware for classifying acoustic data. It uses and STM32 microcontoller, 18650 battery and a neural network build woth Tensorflow lite for Microcontrollers. It is designed to be inexpensive so several units can be placed cheaply.

The training data was fetched from xeno-canto

Report here

Repo Structure

bash
├── birdEar   # Hardware directory
├── NN        # Directory pertaining to the neural net
├── README.md # This file
├── refs      # Referance files
├── report    # Report for the project
└── src       # Source code for the firmware
  • Jin Seo / Ryan Walker

Parts

62
QtyValueFootprintReferences
211uFCapacitor_SMD:C_0805_2012MetricC1, C2, C3, C4, C10, C11, C12, C13, C14, C15, C16, C17, C18, C20, C24, C25 +5
547KResistor_SMD:R_0805_2012MetricR5, R6, R7, R8, R9
41MResistor_SMD:R_0805_2012MetricR2, R3, R13, R14
31KResistor_SMD:R_0805_2012MetricR10, R11, R12
3KSA0A311 LFTRButton_Switch_THT:SW_Tactile_Straight_KSA0Axx1LFTRSW2, SW3, SW4
3LEDLED_SMD:LED_0805_2012MetricD1, D2, D3
21MPotentiometer_THT:Potentiometer_Vishay_T73YP_VerticalRV1, RV2
2Conn_01x02_MaleConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ4, J7
1100kResistor_SMD:R_0805_2012MetricR4
1100uFCapacitor_SMD:C_0805_2012MetricC22
116kResistor_SMD:R_0805_2012MetricR15
11nFCapacitor_SMD:C_0805_2012MetricC23
12.2kResistor_SMD:R_0805_2012MetricR1
12.2uFCapacitor_SMD:C_0805_2012MetricC19
14.7uFCapacitor_SMD:C_0805_2012MetricC21
1AZ1117EH-3.3TRG1Package_TO_SOT_SMD:SOT-223-3_TabPin2U2
1Battery_CellBattery:BatteryHolder_Keystone_1042_1x18650BT1
1CMA-4544PF-WConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalMK1
1Conn_01x03Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ1
1Conn_01x03_MaleConnector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ6
1Conn_01x08_MaleConnector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_VerticalJ5
1Conn_02x03_Odd_EvenConnector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_VerticalJ3
1LM324Package_SO:SOIC-14_3.9x8.7mm_P1.27mmU1
1LTR-303ALS-01OptoDevice:Lite-On_LTR-303ALS-01U5
1Micro_SD_Card_Det_Hirose_DM3ATConnector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5J2
1STM32F746ZGTxPackage_QFP:LQFP-144_20x20mm_P0.5mmU3
1Si7050-A20Package_DFN_QFN:DFN-6-1EP_3x3mm_P1mm_EP1.5x2.4mmU4

Questions

How big is the BirdEar PCB?

It measures 96.5 × 88.9 mm and has 2 copper layers, 1.6 mm thick.

What parts does the BirdEar use?

62 parts, built around the LM324, LTR-303ALS-01, SI7050-A20-IM and AZ1117EH-3.3TRG1. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the BirdEar KiCad files?

From the o7-machinehum/BirdEar repository on GitHub, at the commit this page was made from: the board is birdEar/birdEar.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the BirdEar design in my own project?

Its repository states no licence, so its author keeps all rights: ask o7-machinehum before reusing the design.

Similar boards

  • 2 layers48 × 33 mmFrequencyGenerator, the printed circuit board in 3D

    FrequencyGenerator

    hieuxuanthuytran/Si5351C-Clock-Generator-Breakout-PCB

    PCB files for the Si5351C Clock Generator Breakout

    30 parts
  • 4 layers51 × 48 mmEsperDNS, the printed circuit board in 3D

    EsperDNS

    zachmorr/esper

    Ad Blocking with an ESP32

    60 parts175MIT
  • 2 layers69 × 100 mmSy99 8mbex, the printed circuit board in 3D

    Sy99 8mbex

    wohali/sy99_8mbex

    v1.0 - Fabricated July/August 2018 - has issues, do not use

    43 parts3
  • 4 layers36.5 × 94.1 mmNova, the printed circuit board in 3D

    Nova

    ERFSEDS/novafc-hardware

    89 parts2
  • 4 layers183.4 × 143.1 mmMotherboard, the printed circuit board in 3D

    Motherboard

    apistol78/rv32

    Risc-V pipelined CPU and SoC written in SystemVerilog

    126 parts1
  • 4 layers100 × 100 mmFOC driver, the printed circuit board in 3D

    FOC driver

    Froggy111/foosball-bot

    228 parts1
  • 2 layers111.8 × 50.8 mmTemp Control Board, the printed circuit board in 3D

    Temp Control Board

    mcupka/Temperature_Control_Board

    ESP32-based control board for toaster oven PCB reflow project

    39 parts1
  • 2 layers75 × 35 mmTestPCBPro, the printed circuit board in 3D

    TestPCBPro

    alambley/TestPCBPro

    86 parts