
Official Arduino Reliability: Designed to Arduino’s strict official standards, this UNO R3 DIP board ensures seamless compatibility with the Arduino ecosystem, including shields, libraries, and community support—perfect for beginners and pros alike.
Expansion-Friendly Pin Design: Features newly added I2C pins (SDA/SCL, copies of Analog 4/5) for easy sensor integration, plus an IOREF pin that clearly indicates the 5V onboard voltage—simplifying shield compatibility without extra wiring.
Improved Reset Functionality: Upgraded reset circuit with anti-interference protection ensures stable operation, while the reset button’s new position (near the USB port corner) makes it easier to press during prototyping or troubleshooting.
ATmega16U2 for HID Versatility: Equipped with the ATmega16U2 chip (replacing the 8U2), this board supports USB HID protocol emulation—turn your project into a MIDI controller, gamepad, or keyboard, opening doors to interactive art, robotics, and more.
Classic DIP Package: Maintains a dual in-line package (DIP) format, preserving compatibility with legacy shields and accessories while staying future-ready for new projects—versatile for both retrofits and cutting-edge builds.
is an open-source physical computing platform based on a simple i/o board and a development environment that implements theProcessing/Wiring language. can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux).
This is the new Tosduino Uno R3. In addition to all the features of the previous board, the Uno R3 now uses an ATmega16U2 instead of the ATmega8U2 chip. This allows for faster transfer rates, no drivers needed for Linux or Mac (inf file for Windows is needed), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc.
Note:
The TOSduino Uno R3 requires the 1.0 drivers folder in order to install properly on some computers. We have tested and confirmed that the R3 can be programmed in older versions of the IDE. However, the first time using the R3 on a new computer, you will need to have 1.0 installed on that machine.
The small chip is ATmega16U2, the 28 pin DIP socket chip is ATmega328-pu.
Performance description:
Digital I / O digital input / output terminal: 0 to 13.
Analog I / O Analog inputs / outputs: 0 to 5.
Support ISP download function.
Input voltage: No external power supply when connected to the computer USB, external power supply 5V ~ 9V DC voltage input.
Output voltage: 5V / 3.3V DC.
Using Atmega328 microprocessor controller.
Package including:
1 x UNO R3
1 x USB cable







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