/Button/Button.kicad_pcb.jpg)
cshariq/SereneCan't hear your friend talking on the highway? Do you need to blast your music just to hear it well? Well, you're in luck, because Serene is a portable noise-cancelling device that can remove all of that noise!
Button is an open-source printed circuit board by cshariq, from the cshariq/Serene repository on GitHub. It is a 4-layer board of 21.3 × 9.8 mm with 26 parts on 28 nets, routed with 235 tracks and 73 vias.
It is built around the SK6805E-J. Its parts include 24 diodes, 1 connector and 1 switch.
Onshape link provided below
Can't hear your friend talking on the highway? Do you need to blast your music just to hear it well? Well, you're in luck, because Serene is a portable noise-cancelling device that can remove all of that noise!
Just stick it to the roof of your car, and Serene will capture the road noise and output sounds waves that cancel them out, so that you can enjoy a peaceful car ride.
Serene is a small, portable device that connects directly to your phone and car speaker. It sticks seamlessly to the walls of your car, and using ANC algorithms, it minimizes the external noise that it picks up inside the car.
During family road trips, I sat in the backseat as a child, and if I didn't yell, my parents in the front couldn't hear me. This was so annoying, as a long highway drive almost always came with losing my voice.
With my dad's hearing getting worse, I figured that we needed a way to drown out the road noise. I was desparate for a solution, so taking inspiration from noise-cancelling technology in headphones, I thought: "What if we did the same thing in cars?".
While a few very luxury cars offer ANC, I wanted to make ANC more accessible to all people, because everyone deserves sereneness!
| Subtotal | Source | Notes |
|---|---|---|
| $228.21 | JLCPCB Parts | 2x (JLCPCB requires 2 of each part) |
| $61.05 | JLCPCB PCB | 0.15mm via and epoxy filled & capped selectedas it is required by the ADAU1787 Chip. Lead free coating also selected for safety and its only a dollar extra. 6 Layer manufacturing is selected because it is cheaper than 2/4 layer manufacturing due to a coupon. Although other options were explored, most DSPs(Digital Singal Processors) which is required for fast processing of audio(required for ANC) are WLCSP chips requiring 0.15mm vias which are epoxy filled & capped. Other solutions are too slow for this application. |
| $22.50 | Amazon | |
| $20.56 | AliExpress | |
| $11.86 | Adafruit | For the LEDs |
| $250.08 | All | Not accounting for 2x JLCPCB Parts |
| $364.18 | All | 2x (JLCPCB required 2 of each part) |
| Grand Total | Price | Notes |
|---|---|---|
| JLCParts Grand Total | $238.13 | 2x (JLCPCB required 2 of each part) |
| JLCPCB Grand Total | $72.25 | JLCPCB Advanced is cheaper due to coupons |
| Amazon Subtotal | $16.28 | 22.5 CAD --> 16.28 USD |
| Adafruit Grand Total | $23.08 | |
| AliExpress Grand Total | $20.70 | 28.07 CAD --> 20.70 USD |
| Vapcell Grand Total | $22.99 | |
| Grand Total | $393.43 |
| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | SK6805 | ANC_Parts:IPIXEL SK6805-E-J_ADA | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +8 |
| 1 | Conn_01x06_Socket | ANC_Parts:CONN_503480-0540_MOL | J2 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KMR2 | SW1 |
cshariq/Serene
Can't hear your friend talking on the highway? Do you need to blast your music just to hear it well? Well, you're in luck, because Serene is a portable noise-cancelling device that can remove all of that noise!
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It measures 21.3 × 9.8 mm and has 4 copper layers, 1.6 mm thick.
26 parts, built around the SK6805E-J. 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.
From the cshariq/Serene repository on GitHub, at the commit this page was made from: the board is Serene Mini Hardware(PCB + Schematic)/Button/Button.kicad_pcb and its schematic Serene Mini Hardware(PCB + Schematic)/Button/Button.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask cshariq before reusing the design.
