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About SunFounder

SunFounder is a technology company focused on Raspberry Pi and Arduino open source community development. Committed to the promotion of open source culture, we strive to bring the fun of electronics making to people all around the world and enable everyone to be a maker. Our products include learning kits, development boards, robots, sensor modules and development tools. In addition to high quality products, SunFounder also offers video tutorials to help you build your own project. If you have interest in open source or making something cool, welcome to join us! Visit for more!

About This RollFlash Robot Kit

The Rollflash is a four-foot quadruped robot, with a super cute tortoise appearance design. It applies an open source Arduino Nano control board, a Servo Control Board, and a Bluetooth Module. With an ultrasonic sensor and an infrared sensor, it can realize obstacle avoiding and line following functions. What’s more, you can control it with an App on Android, which makes it easy and interesting to play. Through this kit, you can feel the charm of assembling the robot from scratch and how to realize the control by programming.

Besides this user manual, you can obtain guidance on our website – download the code needed under LEARN -> Get tutorials and watch the video under VIDEO.

Free Support

If you have any TECHNICAL questions, add a topic under FORUM section on our website and we’ll reply as soon as possible.

For NON-TECH questions like order and shipment issues, please send an email to You’re also welcomed to share your projects on FORUM.