Skip to the content
2 layers66 × 61.1 mmHead board, the printed circuit board in 3D
Size
66 × 61.1 mm
Copper layers
2
Thickness
1.6 mm
Parts
23
Nets
26
Pads
121
Tracks, vias
218, 10
Routed
Yes
KiCad
KiCad 4
Created
11 Jan 2016
Updated
29 Mar 2019

Overview

Head board is an open-source printed circuit board by lutzer, from the lutzer/HybridLetterbox repository on GitHub, published under the MIT licence. It is a 2-layer board of 66 × 61.1 mm with 23 parts on 26 nets, routed with 218 tracks and 10 vias.

It is built around the ATMEGA328P-PU and BC547. Its parts include 8 resistors, 8 connectors, 3 diodes, 2 transistors and 1 capacitor. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

2

README

README.md

Hybrid Letterbox

Installation

Setup Letterbox for the first time

  • go to HybridLetterbox dir and update to the newest version: git pull
  • modify two config files
    • go to src/server/node directory and copy config file: cp config.defaultjs config.js and modify file to your needs
    • go to src/letterbox/ and copy ini file: cp letterbox.default.ini letterbox.ini and modify it to your needs

Development

Python Test Scripts

  • go to src folder and call testscripts by sudo python2 -m letterbox.tests

Node Testscripts

  • install pm2 npm install pm2 -g

  • go to cd src/www

    • start testscripts by calling npm test

Configure Atmega Head Board

see atmega-installation.md`

Update

10.9.2016

  • edit sudo nano /etc/systemd/system/letterbox.service and change value:

    text
    RemainAfterExit=false
  • git pull

  • start admin node script on port 9000

    • cd src/server/admin/

    • npm install

    • cp config.default.js config.js and adjust parameters in editor nano config.js , these 3 parameters have to be changed:

      text
      /* AUTH DATA */
      authName: 'admin',
      authPassword: 'password',
      sudoPassword: 'password'
    • create startup script for admin server: pm2 start main.js --name LetterboxBackend and save pm2 save

  • reboot with sudo reboot

  • access admin backend by going to 192.168.72.2:9000 within your browser

Parts

23
QtyValueFootprintReferences
310 kOhmResistors_ThroughHole:Resistor_Horizontal_RM7mmR2, R3, R4
2100 OhmResistors_ThroughHole:Resistor_Horizontal_RM7mmR5, R6
2330 OhmResistors_ThroughHole:Resistor_Horizontal_RM7mmR7, R8
2BC547TO_SOT_Packages_THT:TO-92_Inline_WideQ1, Q2
2DDiodes_ThroughHole:Diode_DO-41_SOD81_Horizontal_RM10D2, D3
110 uFCapacitors_ThroughHole:C_Radial_D5_L11_P2C1
156 OhmResistors_ThroughHole:Resistor_Horizontal_RM7mmR1
1ATMEGA328P-PHousings_DIP:DIP-28_W7.62mmIC1
1CAM_LEDSPin_Headers:Pin_Header_Straight_1x03P5
1FDBK_LEDPin_Headers:Pin_Header_Straight_1x02P8
1LEDLEDs:LED-3MMD1
1PI_CONNPin_Headers:Pin_Header_Straight_2x20P2
1PRPin_Headers:Pin_Header_Straight_1x02P4
1PR_LEDPin_Headers:Pin_Header_Straight_1x02P7
1REEDPin_Headers:Pin_Header_Straight_1x02P3
1SERIALPin_Headers:Pin_Header_Straight_1x06P1
1STEPPERPin_Headers:Pin_Header_Straight_1x06P6

More from lutzer/HybridLetterbox

2
  • 2 layers95.2 × 56.2 mmCamera board, the printed circuit board in 3D

    Camera board

    lutzer/HybridLetterbox

    12 parts2MIT
  • 2 layers49.5 × 46.5 mmStepper board, the printed circuit board in 3D

    Stepper board

    lutzer/HybridLetterbox

    6 parts2MIT

Similar boards

  • 2 layersArduino Light Flicker Measure PCB, the printed circuit board in 3D

    Arduino Light Flicker Measure PCB

    WolfgangFranke/LightFlickerMeasure

    Measures flickering lights, like PWM driven LED-systems, using Arduino Nano.

    35 parts10GPL-3.0
  • 2 layers201.3 × 152.1 mmDC DC CONVERTER, the printed circuit board in 3D

    DC DC CONVERTER

    William-Souza-Santos/ADAPTIVE_FUZZY_LOGIC_CONTROL_FOUR_SWITCH_BIDIRECTIONAL_BUCK_BOOST_DC_DC_CONVERTER

    Final Year Project by Electronic Engineering

    95 parts6
  • 2 layers94.5 × 67.6 mmAtmegaStepperDriver, the printed circuit board in 3D

    AtmegaStepperDriver

    eGuardianDev/atmegaStepperDriver

    Open source stepper driver powered by atmega328p chip. First prototype designed for used in 3D printer.

    102 parts2GPL-3.0
  • 2 layers55 × 485 mmFg lampe, the printed circuit board in 3D

    Fg lampe

    devtal-de/fg_lampe

    181 parts1
  • 2 layers74.5 × 97 mmPTP Blaškić seminar, the printed circuit board in 3D

    PTP Blaškić seminar

    blaskicl/seminar_pcb

    Seminarski rad iz kolegija projektiranje tiskanih pločica

    38 parts
  • 2 layers36.6 × 61.7 mmShotSecs, the printed circuit board in 3D

    ShotSecs

    coyte/ShotSecs

    Time your espresso shot on a seven segment display

    21 parts
  • 2 layers100 × 60 mmCosSin, the printed circuit board in 3D

    CosSin

    cybaer/CosSin

    50 parts
  • 2 layers75.1 × 45.1 mmExplore Clock, the printed circuit board in 3D

    Explore Clock

    ExploreEmbedded/FunTime

    A DIY wall clock that doubles up as automatic night lamp

    34 parts

Questions

How big is the Head board PCB?

It measures 66 × 61.1 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Head board use?

23 parts, built around the ATMEGA328P-PU and BC547. 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 Head board KiCad files?

From the lutzer/HybridLetterbox repository on GitHub, at the commit this page was made from: the board is resources/hardware/head_board/head_board.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Head board design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).