VoxLink - Shell Module - Daisy
MichalVarsanyi·VoxLink·Hardware/Shell_Module_DAISY/Shell_Module_DAISY.kicad_pcb
About the VoxLink - Shell Module - Daisy
VoxLink - Shell Module - Daisy is an open source PCB design by MichalVarsanyi, published on GitHub under the MIT license. It is a 4-layer board measuring 54 × 29.5 mm, with 9 components from 9 distinct parts.
Other key parts include the VoxLink_Core_Module and VoxLink_BNO086_Module. By type, the board carries 2 ICs, 2 connectors, 2 capacitors, 2 resistors and 1 switch.
It belongs with the sensors designs in this gallery.
From the project
VoxLink is a high-speed solution that allows interfacing of up to 100 sensors using a single high-speed host device. The communication protocol is agnostic to the sensor board, freeing the user from handling low-level communication. This project is part of my Bachelor's thesis at the Czech Technical University in Prague.
- During programming, exceeding internal clocking speeds of 100MHz on the iCE40UL1K-CM36AI FPGA proved to be virtually impossible. In the future, instantiating the hard IP I2C blocks in the FPGA silicon may increase the speed. Realistically, however, switching to a higher speed grade of FPGAs will probably be the best option.
It may seem that 50-100 MHz is unreasonably fast; however, just 40 sensors at 9 kHz get very close to this ballpark. It is difficult to determine what may increase the bandwidth in the future, so it's better to have an excess than to have too little bandwidth.…

Main components on the VoxLink - Shell Module - Daisy
VoxLink - Shell Module - Daisy bill of materials (BOM)
9 components, 9 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | VoxLink_Core_Module | VoxLink_Core_Module | U1 |
| 1 | VoxLink_BNO086_Module | VoxLink_BNO086_Module | U2 |
| 1 | PicoBlade | Molex_PicoBlade_53048-0810_1x08_P1.25mm_Horizontal | J1 |
| 1 | RJ45_Output | CONN_855035-101_MOL | J2 |
| 1 | Reset | SW_TH_Tactile_Omron_B3F-102x | SW301 |
| 1 | 10u | C_1206_3216Metric | C1 |
| 1 | 10U 1u Murata | C_0805_2012Metric | C304 |
| 1 | 1R | R_0603_1608Metric | R1 |
| 1 | 10k | R_0603_1608Metric | R2 |
VoxLink - Shell Module - Daisy design files
The KiCad project lives in the MichalVarsanyi/VoxLink repository on GitHub; these links point at the commit this page was built from.
VoxLink - Shell Module - Daisy: common questions
How big is the VoxLink - Shell Module - Daisy?
The VoxLink - Shell Module - Daisy measures 54 × 29.5 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the VoxLink - Shell Module - Daisy?
9 components, from 9 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 VoxLink - Shell Module - Daisy design files?
From the MichalVarsanyi/VoxLink repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the VoxLink - Shell Module - Daisy design in my own project?
Yes, under the terms of its MIT license, which MichalVarsanyi chose for the repository.
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