

BYTE Control Board
The BYTE hands free interface
- Size
- 55 × 19.3 mm
- Copper layers
- 2
- Thickness
- 0.8 mm
- Parts
- 38
- Nets
- 68
- Pads
- 184
- Tracks, vias
- 544, 39
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 14 Aug 2020
- Updated
- 11 Oct 2021
Overview
BYTE Control Board is an open-source printed circuit board by oneohm, from the oneohm/BYTE repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 55 × 19.3 mm with 38 parts on 68 nets, routed with 544 tracks and 39 vias.
It is built around the DMC2400UV. Its parts include 13 resistors, 5 connectors, 4 capacitors, 3 diodes and 3 switches.
Main components
1README
README.mdThe BYTE
Full design package for the BYTE hands free interface
Details are available on the Hackaday project page:` https://hackaday.io/project/171778-the-byte
Repository Architecture
This repository is divided by 4 main folders:
- Docs: You'll find here our consult documents, and documentation of the project.
- Firmware: You'll find here everything you need to build the firmware and in case of needed, modify it.
- Hardware: You'll find here the KiCad projects with theirs libraries so the design is fully portable.
- Mechanical: You''ll find here all the FreeCad files to print/modify/understand the mechanics of the device.
You will find more information on each README in each folder, in order to keep this readme short.
Previous Versions
It's important to note that this repository is under development, if your interested on one "The Byte" device already working, you should jump to the Realese section of this repository to get the V1.0
Version 1.0
The version 1.0 has this architecture based on Seeeduino XIAO and all the connection is done by USB.

License Info:
Firmware is licensed under the GNU General Public License v3.0
Hardware design is licensed under 
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Once the design is finalized the hardware will recieve a more permissive license.
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 2K | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 |
| 3 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3 |
| 3 | RED | LED_SMD:LED_0805_2012Metric | D1, D2, D3 |
| 2 | GPIO | Button_Switch_SMD:SW_SPST_TL3305A | SW1, SW2 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 5.1K | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 5.1k | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 8P8C_Shielded | Connector_RJ:RJ45_Amphenol_54602-x08_Horizontal | J1 |
| 1 | BL653 | Controller:BL653_v5 | U2 |
| 1 | Battery | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | DMC2400UV | Package_TO_SOT_SMD:SOT-563 | Q1 |
| 1 | Expansion | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J3 |
| 1 | MCP73830T-2AAI_MYY | Controller:2x2TDFN | U1 |
| 1 | RST | Button_Switch_SMD:SW_Push_1P1T-SH_NO_CK_KMR2xxG | SW3 |
| 1 | SWD | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | USB_C_Plug_USB2.0 | Connectors:C393939 | P1 |
| 1 | Val** | BYTE_Sensors:Logo | Ref** |
The 32 most common of 38 parts.
Questions
How big is the BYTE Control Board PCB?
It measures 55 × 19.3 mm and has 2 copper layers, 0.8 mm thick.
What parts does the BYTE Control Board use?
38 parts, built around the DMC2400UV. 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 BYTE Control Board KiCad files?
From the oneohm/BYTE repository on GitHub, at the commit this page was made from: the board is Hardware/BYTE_Controller_PCB/BYTE_Control_Board.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the BYTE Control Board 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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