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    Lonely Binary 6-Pack UNO R3 ATmega328P USB-C Rainbow | Compatible with C++ & Python; 6 colors, ENIG; 16MHz, 32KB Flash; pre-soldered, 14 I/O + 6 analog; UNO shield compatible

    • INDUSTRY-STANDARD ATMEGA328P MICROCONTROLLERPowered by the Microchip ATmega328P running at 16 MHz with 32KB Flash, 2KB SRAM, and 1KB EEPROM. Drop-in replacement for the UNO R3 with identical pin layout - your existing code, libraries, and shields work out of the box. Suitable for learning embedded programming, prototyping IoT devices, and building robotics projects.
    • RAINBOW EDITION - SIX COLORS, ENIG FINISHSix boards in Black Gold, Red, Blue, Purple, Pink, and Yellow, each with ENIG (Electroless Nickel Immersion Gold) plating and high-contrast silk screen. Color-coded boards make it easy to organize student stations or separate parallel projects. Lead-free RoHS-compliant manufacturing.
    • MODERN USB TYPE-C CONNECTIVITYReplaces the Type-B port with a reversible USB Type-C port for programming and power delivery. Plug in either way, using the same cable type as a phone or laptop. Includes one USB Type-C cable.
    • PRE-SOLDERED HEADERS & STANDARD PINOUTShips with pre-soldered headers and silk-screened pin labels: 14 digital I/O pins (6 with PWM), 6 analog inputs, plus power rails (5V, 3.3V, GND, VIN). Identical footprint to the UNO R3 - UNO R3 shields, sensor modules, and breadboard projects plug in directly with no adapters needed.
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    Any questions? Ask CelesteSM will help you find out quickly.

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    Lonely Binary 6-Pack UNO R3 Development Board Rainbow Edition, ATmega328P with USB Type-C, Compatible with C++

    This six-board set combines the Microchip ATmega328P microcontroller and full UNO R3 pin compatibility with USB Type-C connectivity, ENIG PCB finishes, and lead-free RoHS-compliant construction. The six color variants make it easy to organize student stations or separate parallel projects in a lab or workshop.

    Six Colors Included

    • Black Gold
    • Red
    • Blue
    • Purple
    • Pink
    • Yellow

    Features

    • Six color-coded boards with ENIG finish improved oxidation resistance compared to HASL, with high-contrast silk screen for readable pin labels
    • USB Type-C connector uses a reversible USB-C cable (one cable included)
    • Lead-free, RoHS-compliantmanufacturing
    • Pre-soldered headers ready for breadboard or shield use out of the box
    • Color organization assign colors to student stations or separate concurrent projects

    UNO R3 Compatibility

    Each board uses the same pin layout, microcontroller, and bootloader as the UNO R3:

    • Compatible with UNO shields (Motor Shield, Ethernet Shield, LCD Shield, sensor shields, and more)
    • Works with C++ example sketches
    • Pin numbering (D0-D13, A0-A5) matches C++ libraries and projects

    Technical Specifications (Per Board)

    • Microcontroller:Microchip ATmega328P
    • Clock Speed:16 MHz
    • Operating Voltage:5V (logic level)
    • Input Voltage (USB):5V via USB Type-C
    • Input Voltage (VIN):7V 12V recommended
    • Digital I/O Pins:14 (6 provide PWM output)
    • Analog Input Pins:6 (A0 - A5, 10-bit resolution)
    • DC Current per I/O Pin:20 mA
    • DC Current for 3.3V Pin:50 mA
    • Flash Memory:32 KB (0.5 KB used by bootloader)
    • SRAM:2 KB
    • EEPROM:1 KB
    • USB Interface:USB Type-C with USB-to-Serial converter
    • PCB Finish:ENIG, lead-free
    • Dimensions:Standard UNO footprint (approximately 68.6mm x 53.4mm)

    Applications

    STEM education with color-coded student stations · C++ programming and embedded systems learning · IoT and sensor prototyping · Robotics with motor and servo control · Home automation · Maker workshops and hackathons · Replacing existing UNO boards

    Getting Started

    • Install the C++ on your computer
    • Connect a board using the included USB Type-C cable
    • Select ""UNO"" as the board type in the IDE
    • Upload the Blink example sketch to confirm operation

    What's in the Box

    • 6 x UNO R3 Boards (Black Gold, Red, Blue, Purple, Pink, Yellow)
    • 1 x USB Type-C cable

    Important Notes

    • Board I/O pins operate at 5V logic levels, the same as the UNO R3.
    • On older Windows systems, a USB-Serial driver may need to be installed.

    About Lonely Binary

    Lonely Binary is an Australian-designed brand making electronics components and kits for makers, students, and educators. Each board is quality-checked before shipping with clear pin labeling.

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    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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