2 layers40.6 × 110 mm
Europi surface mount
Allen-Synthesis/EuroPi
EuroPi: A reprogrammable Eurorack module based on the Raspberry Pi Pico
92 parts584CC0-1.0
2 layers55.9 × 80 mm
HearHere
rayphee/HearHere2OpenCV powered user tracking directional speaker. Senior Design Project
- Size
- 55.9 × 80 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 18
- Pads
- 60
- Tracks, vias
- 123, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 28 Apr 2019
- Updated
- 4 May 2019
Overview
HearHere is an open-source printed circuit board by rayphee, from the rayphee/HearHere repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 55.9 × 80 mm with 19 parts on 18 nets, routed with 123 tracks and 0 vias.
It is built around the L7805. Its parts include 6 capacitors, 6 resistors, 3 ICs and 3 inductors.
Main components
1Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 0.1u | Capacitors_THT:C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C1, C2, C5 |
| 3 | 47u | Inductors_THT:L_Axial_L9.5mm_D4.0mm_P12.70mm_Horizontal_Fastron_SMCC | L1, L2, L3 |
| 2 | 80p | Capacitors_THT:C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C3, C4 |
| 1 | 0.039u | Capacitors_THT:C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | Cs1 |
| 1 | 0.33u | Capacitors_THT:C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C6 |
| 1 | 100k | Resistors_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R4 |
| 1 | 10k | Resistors_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R5 |
| 1 | 1k | Resistors_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R3 |
| 1 | 1k | Resistors_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R6 |
| 1 | 2.2k | Resistors_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R1 |
| 1 | 3.3k | Resistors_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R2 |
| 1 | L293 | Housings_DIP:DIP-16_W7.62mm_Socket | U2 |
| 1 | L7805 | TO_SOT_Packages_THT:TO-220-3_Horizontal | U3 |
| 1 | LM555 | Housings_DIP:DIP-8_W7.62mm_Socket | U1 |
Questions
How big is the HearHere PCB?
It measures 55.9 × 80 mm and has 2 copper layers, 1.6 mm thick.
What parts does the HearHere use?
19 parts, built around the L7805. 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 HearHere KiCad files?
From the rayphee/HearHere repository on GitHub, at the commit this page was made from: the board is kicad/HearHere.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the HearHere design in my own project?
Its repository publishes it under the GPL-2.0 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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