# openQCM > Open-source Quartz Crystal Microbalance with Dissipation monitoring (QCM-D) instruments for nanogram-scale mass, thin-film and biosensing measurements. Designed and manufactured by Novaetech S.r.l. in Pompeii, Italy, since 2014. Open firmware, open schematics, full raw-data access. Every page has a plain Markdown twin: add `.md` to its address (home: https://openqcm.com/index.md). Everything in one file: https://openqcm.com/llms-full.txt ## Key facts - Maker: Novaetech S.r.l., Piazza Bartolo Longo 28, 80045 Pompeii (NA), Italy, the first spin-off company of the National Institute for Astrophysics (INAF). openQCM, its open-source QCM project, since 2014. - People: Raffaele Battaglia (astrophysicist, founder of Novaetech, creator of openQCM) and Marco Mauro (physicist, CEO of Novaetech, co-founder of openQCM): https://openqcm.com/about-us/ - Instruments: openQCM NEXT (multi-overtone QCM-D with active thermal control), openQCM Q-1 (benchtop QCM-D), openQCM Wi2 (compact, USB-powered frequency monitoring); OEM and embedded line: TWIN (dual-crystal), SpaceBug (7 g, ultra-low power), Quartz Holder (PCB-built, vacuum-compatible); EQCM modules for Q-1 and NEXT. - Science: 409 peer-reviewed publications used openQCM instruments (indexed with DOI on this site). - Users: 443 public research institutions and 235 companies in 56 countries are named on the customers page. - Openness: open firmware, open schematics, raw data access. - Where to buy: https://store.openqcm.com/ (online store) · quotes and institutional orders: info@openqcm.com ## Where to buy - [openQCM store](https://store.openqcm.com/): instruments, quartz sensors, modules and spare parts, shipped worldwide from Italy. - Quotes, institutional purchase orders, custom or OEM configurations: info@openqcm.com · [Contacts](https://openqcm.com/contacts) (https://openqcm.com/contacts.md) ## Instruments - [All instruments](https://openqcm.com/openqcm-devices) (https://openqcm.com/openqcm-devices.md): the family and how to choose. - [openQCM NEXT](https://openqcm.com/about-openqcm-next) (https://openqcm.com/about-openqcm-next.md): flagship multi-overtone QCM-D (n = 1–9) with dissipation monitoring and active thermal control; modules for electrochemistry. - [openQCM Q-1](https://openqcm.com/about-openqcm-q-1) (https://openqcm.com/about-openqcm-q-1.md): benchtop QCM-D, simultaneous frequency and dissipation, modular fluidics. - [openQCM Wi2](https://openqcm.com/about-openqcm-wi2) (https://openqcm.com/about-openqcm-wi2.md): compact, USB-powered frequency monitoring (wireless-ready). - [openQCM TWIN](https://openqcm.com/about-openqcm-twin) (https://openqcm.com/about-openqcm-twin.md): dual-crystal OEM board with a drift-compensating reference, for gas and vacuum. - [openQCM SpaceBug](https://openqcm.com/about-openqcm-spacebug) (https://openqcm.com/about-openqcm-spacebug.md): 7 g ultra-low-power QCM module for CubeSats and field nodes. - [openQCM Quartz Holder](https://openqcm.com/about-openqcm-holder) (https://openqcm.com/about-openqcm-holder.md): PCB-built, vacuum-compatible QCM under 5 g. - EQCM modules: [Q-1](https://openqcm.com/about-openqcm-eqcm-q1) · [NEXT](https://openqcm.com/about-openqcm-eqcm-next) (the NEXT module is still an experimental prototype). ## Science - [The Crystal Lab](https://openqcm.com/technology) (https://openqcm.com/technology.md): how a QCM works, six interactive experiments with equations and constants (overtones, resonance, Sauerbrey, Kanazawa–Gordon, viscoelastic films, temperature). - [QCM calculator](https://openqcm.com/qcm-calculator) (https://openqcm.com/qcm-calculator.md): free Sauerbrey equation calculator (frequency shift to mass), plus Kanazawa–Gordon, Voigt forward model and multi-overtone inverse fit, in the browser. - [Publications](https://openqcm.com/scientific-papers) (https://openqcm.com/scientific-papers.md): 409 peer-reviewed papers that used openQCM, with DOI and instrument; per-instrument lists at https://openqcm.com/scientific-papers/device/openqcm-next/ (also openqcm-q-1, openqcm-wi2, openqcm-v1). - [FAQ](https://openqcm.com/faq) (https://openqcm.com/faq.md): answers from the openQCM team on theory, specs, sensors, measurements, EQCM, chemistry, software, cleaning and troubleshooting. - [Lab notebook](https://openqcm.com/blog) (https://openqcm.com/blog.md): technical notes by thread (measuring, building, software, ideas). ## Downloads: manuals, software and firmware Free, served from https://openqcm.com/downloads/ (older versions in each product's archive/ folder). - openQCM NEXT: [Executable for Windows](https://openqcm.com/downloads/next/software/openqcm-next-software-0.1.5-windows.zip) (ZIP) · [Python source code](https://openqcm.com/downloads/next/software/openqcm-next-software-0.1.5-source.zip) (ZIP) · [Teensy firmware](https://openqcm.com/downloads/next/software/openqcm-next-firmware-0.1.5-teensy.zip) (ZIP) · [User manual](https://openqcm.com/downloads/next/openqcm-next-user-guide.pdf) (PDF) - openQCM Q-1: [Executable for Windows](https://openqcm.com/downloads/q-1/software/openqcm-q-1-software-2.1-windows.zip) (ZIP) · [Python source code](https://openqcm.com/downloads/q-1/software/openqcm-q-1-software-2.1-source.zip) (ZIP) · [Teensy 4.0 firmware](https://openqcm.com/downloads/q-1/software/openqcm-q-1-firmware-2.1-teensy40.zip) (ZIP) · [User manual](https://openqcm.com/downloads/q-1/openqcm-q-1-user-manual.pdf) (PDF) - openQCM Wi2: [Executable for Windows](https://openqcm.com/downloads/wi2/software/openqcm-wi2-software-2.1-windows.zip) (ZIP) · [Software user manual](https://openqcm.com/downloads/wi2/software/openqcm-wi2-software-2.1-user-manual.pdf) (PDF) · [Teensy 4.0 firmware](https://openqcm.com/downloads/wi2/software/openqcm-wi2-firmware-1.2-teensy4.zip) (ZIP) · [User manual](https://openqcm.com/downloads/wi2/openqcm-wi2-user-manual.pdf) (PDF) - openQCM Holder: [User manual](https://openqcm.com/downloads/holder/openqcm-quartz-holder-user-manual.pdf) (PDF) · [Open-source materials](https://openqcm.com/downloads/holder/openqcm-holder-open-source-materials.zip) (ZIP) - EQCM module · Q-1: [User manual](https://openqcm.com/downloads/q-1/openqcm-q-1-electrochemistry-module-user-manual.pdf) (PDF) - openQCM (2014): [Software for Windows](https://openqcm.com/downloads/openqcm-1/software/openqcm-software-1.2-windows.zip) (ZIP) · [Software for macOS](https://openqcm.com/downloads/openqcm-1/software/openqcm-software-1.2-macos.zip) (ZIP) · [Software for Linux](https://openqcm.com/downloads/openqcm-1/software/openqcm-software-1.2-linux.zip) (ZIP) · [Arduino firmware](https://openqcm.com/downloads/openqcm-1/software/openqcm-arduino-firmware.zip) (ZIP) · [Electronics (PCB files)](https://openqcm.com/downloads/openqcm-1/open-hardware/openqcm-electronics-v3.zip) (ZIP) ## Company - [About us](https://openqcm.com/about-us) (https://openqcm.com/about-us.md): Novaetech S.r.l., first spin-off company of INAF (from mass sensors for space missions to openQCM); founders Raffaele Battaglia and Marco Mauro, and the people who took part in the project. - [Customers](https://openqcm.com/customers) (https://openqcm.com/customers.md): the named institutions and companies that use openQCM, by country. ## Machine-readable access - Markdown twins: `.md`, advertised with `` and an HTTP Link header on every page. - JSON-LD on every page: Organization, Product (all instruments), ScholarlyArticle (each paper), Dataset (bibliography), FAQPage, LearningResource (Crystal Lab). - WordPress REST API: https://openqcm.com/wp-json/wp/v2/paper (authors, journal, doi, year, volume, pages), https://openqcm.com/wp-json/wp/v2/pages, https://openqcm.com/wp-json/wp/v2/posts. ## External resources - [Community forum](https://forum.openqcm.com): answers from the openQCM team. - [GitHub](https://github.com/openQCM): firmware, software and hardware sources.