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Yes, an Arduino can mine cryptocurrency, but it is best treated as a learning project—not a way to earn meaningful mining rewards. Duino-Coin is the clearest Arduino-focused option; Bitcoin mining sketches demonstrate hashing but run far too slowly to compete with purpose-built miners.
Which cryptocurrency can an Arduino mine?
Duino-Coin is designed for small boards
Duino-Coin describes itself as a cryptocurrency mineable with Arduino boards and uses its DUCO-S1 algorithm. Its project repository lists Arduino Uno, Nano, Mega and Pro Mini among supported boards: Duino-Coin repository.
The project FAQ says DUCO-S1 uses a non-vectorizable SHA-1 implementation intended to run on a range of low-power devices. It reports that most Uno, Pro Mini and Nano boards using the ATmega328P achieve about 196 H/s and 10 DUCO per day. Those figures are a project-reported 2023 example, not a guaranteed current rate or payout; actual results and coin economics can change. See the Duino-Coin FAQ.
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An open-source Arduino Bitcoin Miner project for the Arduino Pro Micro reports about 50 hashes per second with its C implementation and about 150 hashes per second with its AVR assembly version. These are figures reported on the project repository page checked in 2026, not a benchmark of every Pro Micro or a promise of performance: Arduino Bitcoin Miner project.
#1 Best Overall
- START CODING WITH THE ELEGOO UNO R3: Connect the included USB cable, upload your first sketch, and build sensor, motor, display, and automation projects, making it a practical controller for maker desks, classrooms, coding clubs, and robotics labs
- ATMEGA328P CORE FOR EVERYDAY PROJECTS: A 16 MHz clock, 32 KB flash, 14 digital I/O pins with 6 PWM outputs and 6 analog inputs provide a versatile foundation for LEDs, buttons, relays, servos, displays and sensors
- RELIABLE USB PROGRAMMING AND CLEAR WIRING: The ATmega16U2 USB interface supports sketch uploads and serial communication, while clearly labeled headers help simplify connections to jumper wires, shields and modules
- POWER AND EXPAND YOUR WAY: Run the board from USB or a recommended 7-12 V external supply, then add compatible shields and modules for data logging, automation, robotics, test fixtures and custom electronics projects
- BOARD AND USB CABLE INCLUDED: Comes with 1 ELEGOO UNO R3 development board and 1 USB-A to USB-B data cable; breadboard, sensors, shields and power adapter are not included, and younger learners should work with an experienced adult
The project does not support Scrypt: its ATmega32U4 has only 2.5 KB of RAM, while Litecoin’s Scrypt algorithm requires substantially more memory. That limitation illustrates why an Arduino sketch should not be mistaken for a general-purpose mining rig.
How do Arduino mining options compare?
| Option | Board compatibility | Reported speed | Algorithm | Best suited to |
|---|---|---|---|---|
| Duino-Coin miner | Uno, Nano, Mega and Pro Mini are listed by the project | About 196 H/s and 10 DUCO/day for most ATmega328P Uno, Pro Mini and Nano boards, per the project’s 2023 FAQ; not a guaranteed current result | DUCO-S1 | Low-power experimentation with an Arduino-centered project |
| Arduino Bitcoin Miner | Arduino Pro Micro, according to the project | About 50 hashes/s in C or 150 hashes/s in AVR assembly, as reported by the project repository page checked in 2026 | Bitcoin hashing demonstration; the cited project does not support Scrypt | Learning about hashing and embedded programming, not competitive Bitcoin mining |
The cited project materials do not establish a comparable power draw, connectivity requirement or setup complexity for these options. Check the current firmware and setup instructions for the board you choose rather than assuming that every Arduino model has the same networking or software requirements.
Rank #2
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- ATmega328P Microcontroller: Powered by the reliable ATmega328P, running at 16 MHz with 32KB of flash memory, 2KB SRAM, and 1KB EEPROM, offering ample resources for a wide range of basic to advanced electronics projects.
- 14 Digital I/O Pins & 6 Analog Inputs: Features 14 digital I/O pins (6 of which support PWM output) and 6 analog inputs (10-bit resolution), providing flexible options for sensors, motors, and other external components.
- USB Connectivity for Easy Programming: The built-in USB port allows for direct programming and serial communication, enabling a simple connection to your computer for sketch uploading and debugging through the Arduino IDE.
- Compatible with Arduino IDE: Full compatibility with the Arduino IDE ensures easy access to a vast array of libraries, code examples, and community-driven projects, making the Uno a great choice for both beginners and experienced makers.
- Widely Used in Education & Prototyping: The Arduino Uno is a standard in educational environments, widely used for learning and teaching electronics and programming. It's perfect for prototyping, robotics, IoT projects, and more.
Can you create a mining farm with ESP boards or Arduinos?
You can connect multiple devices for experimentation, but adding boards does not turn them into competitive mining hardware. The Duino-Coin FAQ discusses diminishing returns for additional workers under its Kolka system, so scaling the number of devices should not be assumed to produce a proportional increase in useful results. Consult the project’s current FAQ for the system’s details.
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Quick Recap
Best Value
- TURN CODE INTO REAL-WORLD RESULTS — Follow 22+ guided lessons to make LEDs blink, read temperature and distance, move servo and stepper motors, control an LCD and respond to joystick or IR input; ideal for a family weekend build, homeschool unit, coding club or STEM classroom
- MORE PROJECT VARIETY IN ONE ORGANIZED KIT — Includes the UNO R3 controller, LCD1602 with pre-soldered header, breadboard power module, ultrasonic and DHT11 sensors, joystick, IR receiver and remote, SG90 servo, stepper motor, relay, DC motor, fan blade, displays, LEDs, buttons, resistors and jumper wires
- START WITHOUT SOLDERING — Plug-in modules, a solderless breadboard and the pre-soldered LCD help beginners focus on wiring, code and testing; the illustrated component list makes it easier to find each part and move from one lesson to the next
- LEARN THE LOGIC, THEN CREATE YOUR OWN — Use Arduino IDE and the included example code to understand digital input and output, analog sensing, timing, motor control and display functions, then change thresholds, speeds and sequences for alarms, environmental monitors, reaction games and motion projects
- CLEAR SETUP SUPPORT FOR FIRST-TIME BUILDERS — Download the latest tutorial and code, select the UNO board and correct computer port, check component polarity and breadboard rows, and keep power-module input at 9V or below; younger learners should work with an experienced adult
Rank #4
- START CODING WITH A FLEXIBLE UNO R3 BOARD: Connect the included USB cable, upload sketches with Arduino IDE and build sensor, motor, display and automation projects for maker desks, classrooms, coding labs and electronics prototyping
- ATMEGA328P CORE FOR EVERYDAY PROJECTS: A 16 MHz clock, 32 KB flash, 2 KB SRAM, 1 KB EEPROM, 14 digital I/O pins with 6 PWM outputs and 6 analog inputs support LEDs, buttons, relays, servos, displays and sensors
- CH340C USB-TO-SERIAL INTERFACE: The onboard CH340C handles USB communication for sketch uploads and serial monitoring, while clearly labeled digital, analog and power headers help simplify wiring to modules and shields
- USB OR EXTERNAL POWER: Run the board from the included USB cable or a recommended 7-12 V external DC supply, then expand with compatible shields and modules for robotics, data logging, automation and custom embedded projects
- BOARD AND USB CABLE INCLUDED: Comes with 1 ELEGOO UNO R3 controller board and 1 USB-A to USB-B data cable; breadboard, jumper wires, sensors, shields and power adapter are not included
Rank #3
- Unlock your creativity with the versatile UNO R3 Board ATmega328P! Explore endless possibilities in electronics projects with its user-friendly Arduino development environment, extensive digital and analog I/O pins, and compatibility with various sensors and modules. Let your imagination soar!
- Experience the power of UNO R3 Board ATmega328P! This feature-packed development board boasts a high-performance ATmega328P microcontroller, 32KB of flash memory, and 2KB of SRAM. It's perfect for both beginners and advanced users seeking to build innovative applications in robotics, home automation, and more.
- Ignite your passion for electronics with the UNO R3 Board ATmega328P! Its open-source design allows for customization, while its 14 digital I/O pins and 6 analog input pins provide ample connectivity options. Get ready to bring your ideas to life and create interactive projects like never before.
- Elevate your DIY projects with the UNO R3 Board ATmega328P! This highly versatile development board offers seamless integration with the Arduino ecosystem, providing access to a vast library of code and resources. With its reliable performance and broad compatibility, you can easily prototype and realize your electronic dreams.
- Discover the endless potential of the UNO R3 Board ATmega328P! With its robust communication interfaces, including UART, SPI, and I2C, you can connect and communicate with a wide range of devices. Whether you're a hobbyist or a professional, this powerful development board is a must-have for creating innovative and interactive electronic systems.
How to try a beginner Arduino mining setup
What you need
- An Arduino Uno R3 or compatible Uno board, which is listed as supported by the Duino-Coin project.
- A USB data cable. A charging-only cable will not upload a sketch.
- A computer with Arduino software installed and any basic prototyping accessories your build requires.
Set it up
- Install the Arduino software. Use Arduino’s official documentation for the IDE, hardware and programming references.
- Confirm current Duino-Coin support and instructions. Start with the project repository and follow its current directions for the supported board, miner sketch and any required configuration.
- Connect the Uno with a USB data cable. Select the correct board and port in the Arduino IDE, following the official documentation if you need help identifying them.
- Upload the supported sketch and verify its output. Use the project’s current instructions to configure the miner and check that it connects and reports work as expected.
- Check wallet, pool and firmware details against current project documentation. These instructions can change, so do not rely on old setup screenshots or copied configuration values.
What to expect from an Arduino miner
- Useful learning: It can make hashing, firmware uploads and small-device networking concrete.
- Limited performance: The reported rates are hobby-scale. Arduino Bitcoin hashing is a demonstration, not a realistic path to Bitcoin block rewards.
- Project-specific compatibility: A board supported by one miner or algorithm is not automatically supported by another. Check the project’s current board list and instructions.
- Uncertain earnings: A historical or project-reported DUCO/day figure is not a payout guarantee; rates, network conditions and coin value can change.
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