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
Historically, TeraBox was difficult to use with rclone due to a lack of a public API. However, recent community "patches" have changed this:
As of writing, the mainstream patches (Rclone v1.63 and below) are effectively dead . Attempts to sync result in 403 Forbidden or 412 Precondition Failed errors.
token refresh failed: invalid signature
Rclone commands like copy , sync , and check make rapid, automated API requests. This high-frequency scanning puts a significant strain on TeraBox servers without generating revenue.
Honestly, this is the most sustainable solution. Consider:
The official TeraBox desktop client is heavily restricted and ad-heavy.
Terabox Rclone Support Patched: Unlocking 1TB Free Cloud Storage in 2026
If you are on Windows, ignore Rclone for Terabox entirely.
If you require high-speed access and massive storage within the TeraBox ecosystem, upgrading to the Premium tier is the most stable path. While it does not natively restore Rclone support, it lifts the speed caps and file size limits within the official client, rendering Rclone less critical for basic speed optimization. 2. Local Sync Directories via the Official Client
Save the configuration. You should now see your TeraBox files in the Alist dashboard.
TeraBox remains a highly requested but unmerged backend. Issues like Pull Request #8508 have been active for years, but a lack of official API documentation from TeraBox makes a stable, integrated release difficult.
While TeraBox (formerly Baidu International) has notoriously resisted integration with third-party tools, users seeking to bridge this gap have increasingly relied on "patched" or community-maintained versions of Rclone to handle file transfers, synchronization, and mounting.
Using third-party tools violates their Terms of Service; use a secondary account if possible.
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!
Historically, TeraBox was difficult to use with rclone due to a lack of a public API. However, recent community "patches" have changed this:
As of writing, the mainstream patches (Rclone v1.63 and below) are effectively dead . Attempts to sync result in 403 Forbidden or 412 Precondition Failed errors.
token refresh failed: invalid signature
Rclone commands like copy , sync , and check make rapid, automated API requests. This high-frequency scanning puts a significant strain on TeraBox servers without generating revenue.
Honestly, this is the most sustainable solution. Consider:
The official TeraBox desktop client is heavily restricted and ad-heavy.
Terabox Rclone Support Patched: Unlocking 1TB Free Cloud Storage in 2026
If you are on Windows, ignore Rclone for Terabox entirely.
If you require high-speed access and massive storage within the TeraBox ecosystem, upgrading to the Premium tier is the most stable path. While it does not natively restore Rclone support, it lifts the speed caps and file size limits within the official client, rendering Rclone less critical for basic speed optimization. 2. Local Sync Directories via the Official Client
Save the configuration. You should now see your TeraBox files in the Alist dashboard.
TeraBox remains a highly requested but unmerged backend. Issues like Pull Request #8508 have been active for years, but a lack of official API documentation from TeraBox makes a stable, integrated release difficult.
While TeraBox (formerly Baidu International) has notoriously resisted integration with third-party tools, users seeking to bridge this gap have increasingly relied on "patched" or community-maintained versions of Rclone to handle file transfers, synchronization, and mounting.
Using third-party tools violates their Terms of Service; use a secondary account if possible.