2 layers28.3 × 39.8 mm
LevelShifter
gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software
21 parts5.1kGPL-3.0
2 layers62.2 × 30.6 mm
MICIR cello3
patrick-reybaud/micir-celloMicro infrarouge pour violoncelle, un capteur optique par corde (KiCad)
- Size
- 62.2 × 30.6 mm
- Copper layers
- 2
- Thickness
- 1 mm
- Parts
- 21
- Nets
- 11
- Pads
- 43
- Tracks, vias
- 34, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 28 Oct 2026
- Updated
- 28 Oct 2026
Overview
MICIR cello3 is an open-source printed circuit board by patrick-reybaud, from the patrick-reybaud/micir-cello repository on GitHub. It is a 2-layer board of 62.2 × 30.6 mm with 21 parts on 11 nets, routed with 34 tracks and 0 vias.
It is built around the SFH 3605-Z and SFH 4646-Z. Its parts include 8 resistors, 4 diodes, 4 transistors and 1 switch.
Main components
2README
README.mdMICIR — micro infrarouge pour violoncelle
Quatre couples émetteur infrarouge (SFH 4646) / phototransistor (SFH 3605), un par corde, sur un circuit collé au chevalet. La corde coupe le faisceau en vibrant ; le courant du phototransistor est le signal.
kicad/: schéma et circuit (KiCad 5, projetMICIR_cello3), empreintes dansMICIR_cello.pretty, exports SVG des deux faces.datasheet/: fiche technique de l'émetteur.essais-2020.wav: premier essai sonore, octobre 2020.
Fiche du projet : https://electro-crea.com/projets/micir/
Publié pour qui voudrait reprendre ou adapter. Licence CERN-OHL-P v2 pour le matériel.
Parts
21Questions
How big is the MICIR cello3 PCB?
It measures 62.2 × 30.6 mm and has 2 copper layers, 1 mm thick.
What parts does the MICIR cello3 use?
21 parts, built around the SFH 3605-Z and SFH 4646-Z. 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 MICIR cello3 KiCad files?
From the patrick-reybaud/micir-cello repository on GitHub, at the commit this page was made from: the board is kicad/MICIR_cello3.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the MICIR cello3 design in my own project?
Its repository states no licence, so its author keeps all rights: ask patrick-reybaud before reusing the design.
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