

KeyFinderSMD
A simple small key-finder for your keys. If you whistle the key-finder beeps.
- Size
- 60 × 25 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 17
- Pads
- 61
- Tracks, vias
- 169, 16
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 5 Dec 2018
- Updated
- 5 Dec 2018
Overview
KeyFinderSMD is an open-source printed circuit board by Binary-Kitchen, from the Binary-Kitchen/keyFinderSMD repository on GitHub. It is a 2-layer board of 60 × 25 mm with 23 parts on 17 nets, routed with 169 tracks and 16 vias.
It is built around the CR202320F. Its parts include 10 resistors, 6 capacitors, 2 diodes, 1 IC and 1 transistor.
Main components
1README
README.mdKeyfinderSMD
A simple small key-finder for your keys. If you whistle the key-finder beeps.
Bill of Material
TBD
Manual
TBD
Copyright and Authorship
- PCB-Layout: CC-BY-SA 3.0 - Thomas Schmid and Timo Schindler
- Manual (TeX): LPPL - Marei Peischl
- Manual (pdf): CC-BY-SA 4.0 - Binary Kitchen e.V.
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 100K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4, R8 |
| 2 | 10nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C2, C3 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4, C6 |
| 2 | 47nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C5 |
| 2 | D | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2 |
| 1 | 1,5M | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R10 |
| 1 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2 |
| 1 | 2,2M | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R9 |
| 1 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5 |
| 1 | 22K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | 330K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R6 |
| 1 | 4,7M | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3 |
| 1 | 4049 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | 47K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R7 |
| 1 | Buzzer | keyfinderSMD:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | CR2023 | Battery:BatteryHolder_Keystone_1060_1x2032 | BT1 |
| 1 | Microphone | keyfinderSMD:MicrophoneDIP | MK1 |
Questions
How big is the KeyFinderSMD PCB?
It measures 60 × 25 mm and has 2 copper layers, 1.6 mm thick.
What parts does the KeyFinderSMD use?
23 parts, built around the CR202320F. 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 KeyFinderSMD KiCad files?
From the Binary-Kitchen/keyFinderSMD repository on GitHub, at the commit this page was made from: the board is keyfinderSMD.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the KeyFinderSMD design in my own project?
Its repository states no licence, so its author keeps all rights: ask Binary-Kitchen before reusing the design.
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