Snap4Arduino was a Snap! extension, a full Snap! implementation to interact with the physical world, through many types of electronic devices, especially those compatible with Arduino. Starting with Snap! v11, the S4A Connector library is doing this job.
Snap! is a broadly inviting programming language for kids and adults that's also a platform for serious study of computer science. It is inspired by Scratch, written by Jens Mönig and Brian Harvey and presented by the University of California at Berkeley.
Snap4Arduino requiere boards with Firmata firmware installed. Check devices section.
Just download, unpack/unzpip and click Snap4Arduino.
Choose your system: Windows 64 (or its portable option), GNU/Linux 64, MacOSX, Windows32 (or its portable) or GNU/Linux 32.
Install Snap4Arduino connector and then, just play Snap4Arduino online (you can install it as an app from the browser to run it offline).
Chromium/Chrome/Edge browsers are required
Download Snap4Arduino connector, unzip its crx folder, type chrome://extensions, select Developer mode and Upload an unpacked extension selecting that crx file (or just drag and drop it).
Just play Snap4Arduino online (you can install it as an app from the browser to run it offline).
Play online
Plugin for Chromebooks (chrome web store)
Chrome/Chromium/Edge plugin (download extension)
Last Snap4Arduino version is 10.3.6 (released on 08/01/2025) and its Snap4Arduino connector version (chrome extension)is 8.0
You can also find older releases and unmaintained versions
Snap4Arduino requires boards with Firmata firmware uploaded.
You can upload Firmata firmwares direcly from Snap4Arduino (with both desktop and online versions) to UNOs compatible boards. Or just here:
A lot of devices support Standard Firmata. Tested on Nano, Mega, Leonardo and Micro.
Many 32 bit devices support Firmata. Tested on Due, 101, ESP8266 and NodeMCU.
Standard Firmata is directly uploadable with any Arduino IDE.
Other options are: SA5Firmata, Creative Robotix Firmata, MC Firmata Collection, Robotics-unleashed, Snap4ArduinoDev, LCD Firmata and Ultrasound Firmata
Log into the license generation page on the FORScan website, enter your name, contact info, and Hardware ID.
Programs the key fob to roll windows up or down remotely. Supported Vehicles and Hardware Requirements Vehicle Compatibility
Ensure your laptop battery is charged and that the USB cable cannot be accidentally bumped or unplugged during a write sequence. If you need help setting up the software, tell me: The exact model and year of your vehicle. The brand and model of the OBD2 adapter you are using.
| Version | Release Date | Key Improvements | |---------|--------------|-------------------| | 2.3.50 | Dec 22, 2022 | Vehicle database update for 2022‑2023 models | | 2.3.67 | Sep 18, 2025 | Support for ELS27v5; dedicated PCM/TCM OBDII modules; new configuration functions.| | 2.3.68 | Nov 10, 2025 | Vehicle database update; fixed missing OBD2 modules on some models.| | 2.3.69 | Jan 27, 2026 | ABS/ESP “IVD Initialization”; IPMA learned values reset; numerous bug fixes.| | 2.3.70 | Feb 7, 2026 | PATS Programming (experimental); critical bug fix for CAN communication.| | 2.4.x (beta) | Ongoing | Firmware programming support; extended functionality. |
Launch FORScan as an Administrator (Right-click icon > ). Step 2: Install Adapter Drivers
Ensure your laptop is connected to a reliable power source or has a full battery.
You can find our GitHub repo at Snap4Arduino@GitHub. Please feel free to send us your pull requests and participate in reporting, fixing or commenting on bugs!
Log into the license generation page on the FORScan website, enter your name, contact info, and Hardware ID.
Programs the key fob to roll windows up or down remotely. Supported Vehicles and Hardware Requirements Vehicle Compatibility
Ensure your laptop battery is charged and that the USB cable cannot be accidentally bumped or unplugged during a write sequence. If you need help setting up the software, tell me: The exact model and year of your vehicle. The brand and model of the OBD2 adapter you are using.
| Version | Release Date | Key Improvements | |---------|--------------|-------------------| | 2.3.50 | Dec 22, 2022 | Vehicle database update for 2022‑2023 models | | 2.3.67 | Sep 18, 2025 | Support for ELS27v5; dedicated PCM/TCM OBDII modules; new configuration functions.| | 2.3.68 | Nov 10, 2025 | Vehicle database update; fixed missing OBD2 modules on some models.| | 2.3.69 | Jan 27, 2026 | ABS/ESP “IVD Initialization”; IPMA learned values reset; numerous bug fixes.| | 2.3.70 | Feb 7, 2026 | PATS Programming (experimental); critical bug fix for CAN communication.| | 2.4.x (beta) | Ongoing | Firmware programming support; extended functionality. |
Launch FORScan as an Administrator (Right-click icon > ). Step 2: Install Adapter Drivers
Ensure your laptop is connected to a reliable power source or has a full battery.