ByByte.DIY™ Nano — Educational Robot Platform

Українська: README.uk

ByByte Nano is a compact, beginner‑friendly educational robot platform from the ByByte series. It is designed for quick assembly, safe classroom use, and clear learning of robotics fundamentals: electronics, sensors, motor control, and embedded programming. Compared to the more advanced ByByte Mega, Nano focuses on simplicity and affordability while remaining extendable.

• Related project: see the larger sibling, ByByte Mega, for a more feature‑rich variant (ByByte Mega).

Key Features

• Beginner‑friendly: simple assembly and clear layout
• Compact PCB: optimized footprint for classrooms and workshops
• Modular design: expansion headers for add‑ons and sensors
• Open hardware: schematic and PCB sources included
• Open firmware: works with common Arduino‑compatible toolchains

Hardware Overview

• Main board: ByByte Nano PCB
• Microcontroller: Arduino‑compatible, Nano‑class form factor (ATmega328)
• Typical peripherals: motor drivers, line sensors, LEDs, power regulation
• Connectors: clearly labeled I/O and power headers for quick prototyping

View the full schematic:

• Schematic (PDF)

Board previews:

• Top PCB
• Bottom PCB

Technical Specifications (high‑level)

• Power: 9V battery (PP3/“Krona”)
• CPU: Arduino Nano (ATmega328)
• Drive: micro N20 geared DC motors, approx. 600–1000 rpm
• Connectivity: USB (Arduino Nano), Bluetooth (HC‑02/HC‑05/HC‑06), optional Wi‑Fi via ESP32‑CAM

Sensors and Interfaces

• 5 line sensors: line‑following capability
• Side optical analog sensors: maze navigation or obstacle avoidance
• Front distance sensor: ultrasonic range measurement
• Analog light sensor: ambient light intensity
• IR receiver: remote control via IR remote
• Bluetooth: smartphone/PC control support
• 2× WS2812 RGB LEDs: “headlights” visual feedback
• Passive buzzer: audible feedback

Additional Peripherals

You can install an optional ESP32‑CAM module to stream video over Wi‑Fi. The ESP module can be programmed directly from the robot; set jumpers J1–J3 according to the schematic. You can also configure communication between ESP and the Arduino Nano to control the robot over Wi‑Fi.

Mobility

Two side wheels provide differential (tank‑style) drive for precise motion control.

Compatibility

Fully compatible with the Arduino IDE and a wide range of Arduino libraries, making it accessible for both beginners and experienced users.

Educational Focus

Designed to help learners develop core programming and robotics skills through hands‑on projects:

• Integrate sensors and process data
• Program motion algorithms for obstacle avoidance, line following, and maze navigation
• Use visual and audio feedback to increase interactivity
• Understand controller‑based platforms and communication/control basics

Assembly Notes

• Besides the PCB and ready‑made modules, a few discrete components are needed for assembly; the design targets easy soldering and widely available modules
• Before soldering the robot’s power modules, set the correct output voltages (5 V and 3.3 V) to protect sensitive electronics
• Before first power‑up, verify polarity; ideally power on without modules inserted and check all rails
• Start with power and logic tests, then connect motors and sensors
• Keep wires short and secure to reduce noise
• Finally, test the robot with example sketches before full use

Bill of Materials

The complete parts list — 55 line items with designators, quantities, values, and component photos — is in BOM.md.

At a glance, the build includes the ByByte Nano PCB, Arduino Nano, motor driver (DRV8834), N20 geared motors with wheels and mounts, 5-channel line tracker, ultrasonic sensor, Bluetooth module (HC-02/HC-05/HC-06), two DC-DC buck modules, ESP32-CAM (optional), and assorted passives, connectors, and mechanical hardware.

Troubleshooting

• No power: check polarity and regulator output
• No USB upload: check board/port selection, drivers, and jumper positions J1–J3
• Motors not spinning: verify driver wiring and module health
• Sensors unresponsive: verify 5 V rail and wiring

How to Contribute

Contributions are welcome:

1. Test and report issues by creating an issue
2. Help us fix problems and improve documentation
3. Optimize or enhance libraries by forking the repo and submitting a pull request

License

This project is released under the license specified in LICENSE.

This project is part of the ByByte.DIY™ open robotics ecosystem.

Trademark notice:

ByByte.DIY™ and the ByByte.DIY logo are trademarks of the project maintainers.

Copyright ⓒ 2026 ByByte.DIY™ contributors