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2 layers40 × 65 mmBytesCounter, the printed circuit board in 3D

Bytes Counter is a Open Source Tally Counter HW project

Size
40 × 65 mm
Copper layers
2
Thickness
1.6 mm
Parts
34
Nets
39
Pads
105
Tracks, vias
306, 13
Pours
2
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
5 Aug 2022
Updated
24 Mar 2024

Overview

BytesCounter is an open-source printed circuit board by makingdevices, from the makingdevices/Bytes-Counter repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 40 × 65 mm with 34 parts on 39 nets, routed with 306 tracks and 13 vias.

It is built around the CC56-12EWA, LTST-C171GKT and TMB12A05. Its parts include 16 resistors, 5 transistors, 3 capacitors, 3 ICs and 2 switches. It belongs with the PIC boards of this library.

Main components

3

README

README.md

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Logo

Making Devices

Open Source projects where we struggle with engineering, electronics, coding and who knows what else... In this case, Bytes Counter is a very simple digital tally counter, so hopefully you may find it interesting ;)

Table of Contents
  1. About The Project
  2. Build one
  3. Usage
  4. Roadmap
  5. License
  6. Contact
  7. Sponsor

About The Project

Bytes Counter Shot

Bytes Counter is a simple Tally Counter for counting people in places, helping you in inventories, practising soldering or just counting things at work! The project was chosen to test some PCB manufacturer capabilities and experiment with both the XLP (Extreme Low-Power Technology) and the pic18LF14k50 itself

The PCB does not have any power button, since the project's approach is to use the XLP technology of the PIC. It only has two buttons: increase/decrease the count.

A buzzer helps you count anything without needing to read the display every time so that you can focus on your work.

Even after weeks or months, the count is kept while in deep sleep mode.

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Built With

Microcontroller MPLAB C Kicad SPONSOR

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Build one

  1. Get the gerber files for the latest version: V1
  2. Send them to a PCB manufacturer (Our Sponsor is PCBWAY)
  3. Buy all the components from the Bill Of Materials
  4. Solder everything with the help of the schematic
  5. Burn the latest firmware
  6. Give us a Star to the respository ;)

Here it is an assembly video:

Assembly Shot

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Usage

Instructions of use:

  • Pressing "+" or "-" will increase/decrease the count.
  • Long press "+" : Sound Event -> Activate/Deactivate buzzer sounds.
  • Long press "-" : Reset event -> Reset the count.
  • 60s without pressing any button: Deep Sleep Mode -> Display off.
  • Any button pulsation will exit Deep Sleep Mode.

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Roadmap

  • Count up/down and show it on screen
  • enable/disable sound when pressing buttons
  • Low Power Consumption
    • Lower the frequency of the microcontroller at minimum
    • Enter deep sleep mode automatically

See the open issues for a full list of proposed features (and known issues).

State: Project FINISHED - 01/08/2022

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License

Distributed under three licenses:

GPL v3 License

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Contact

Making Devices - @MakingDevices

Project Link: https://github.com/makingdevices/Bytes-Counter

Other Links: LinkTree

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Sponsor

PCBWAY helped us with the fabrication of the PCBs. You can check their quality with the following pictures:

PCB Shot 1 PCB Shot 2

Should you want to colaborate with MakingDevices, you can buy a BytesCounter fully assembled and ready to use ;).

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Parts

34
QtyValueFootprintReferences
6220SamacSys_Parts:RESC2012X65NR3, R4, R6, R8, R10, R14
510kSamacSys_Parts:RESC2012X65NR2, R11, R12, R15, R16
54k7SamacSys_Parts:RESC2012X65NR1, R5, R7, R9, R13
5SMMBT5551LT1GSamacSys_Parts:SOT96P237X111-3NQ1, Q2, Q3, Q4, Q5
3100nFSamacSys_Parts:CAPC2012X145NC1, C2, C3
2B3F-4050-SamacSys_PartsSamacSys_Parts:B3F-4000S1, S2
1CC56-12EWADisplay_7Segment:CA56-12EWAU1
1CH075-2032SamacSys_Parts_2:CH0752032U2
1LOGOMDV:logo_MDV_3G***
1LTST-C171GKTSamacSys_Parts:LEDC2012X90NLED1
1PIC18LF14K50-I_SOSamacSys_Parts_2:SOIC127P1030X265-20NIC1
1PickitSamacSys_Parts:HDRV6W66P0X254_1X6_1524X254X874PJ1
1TMB12A05SamacSys_Parts:TMB12A05LS1

The 33 most common of 34 parts.

Questions

How big is the BytesCounter PCB?

It measures 40 × 65 mm and has 2 copper layers, 1.6 mm thick.

What parts does the BytesCounter use?

34 parts, built around the CC56-12EWA, LTST-C171GKT and TMB12A05. 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 BytesCounter KiCad files?

From the makingdevices/Bytes-Counter repository on GitHub, at the commit this page was made from: the board is old/v0.1/Kicad/BytesCounter/BytesCounter.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the BytesCounter design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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1
  • 2 layers40 × 65 mmBytesCounter, the printed circuit board in 3D

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