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Arduino Projects

4 Posts authored by: madhugovindarajan
Story Keeping valuables safe and locked away is important to everyone. While you can have a manual safe, why not build your own safe box and add some smarts to it? Using an Arduino, a servo, joystick and an LCD screen, you can make the electronics for a combination lock safe. An overview of the safe system: This diagram shows the flow of data for the safe. Sensorsa. A joystick that controls the digits displayed on LCD screen. b. Two push buttons that are used to enter and set a new pas ...
  One of the most important things when playing guitar is making sure that the instrument is in tune. Even the best guitar player will not sound any good with an out-of-tune guitar. Tuning guitars by hand using a standard tuner has always been common, but an automatic tuner makes things much easier, and more fun! This Arduino-based project will tune your guitar for you. Here is a video showing the project in action: https://www.mathworks.com/videos/automatic-guitar-tuner-using-simulink-and- ...
I recently came across this "Instructable" in which the user ahmedelsayed93 has created a project to detect obstacles in front of an ultrasonic sensor using Arduino Uno board. What is so great about it you ask, the video shows the ultrasonic sensor mounted on top of a servo motor to make a Radar detector and the plot on his screen makes it look like the radar images we see in movies and weather channels .   The servo motor is controlled using an Arduino Uno which is communicating the sens ...
I recently came across this summer program for high school kids that aims to teach robotics and programming. The course had a few interesting items planned like designing a line following robot, obstacle avoidance robot and a rescue robot. But the students had to one up  their teachers/mentors to show that they are the future and came up with robots that were nothing but phenomenal.   Let me introduce you to a robot that can avoid falling off a cliff. This robot uses the accelerometer ...