Robotics – A Blog on building a Robot

How to build a robotic vehicle

After attending a demonstration by the Roanoke Robotics & Makers Club of Southwest Virginia given at the MystiCon 2017 Science Fiction Convention held in Roanoke, VA, I decided to try my hand at building a small robotic car.  This blog will be following my research, acquisition of parts, and construction.

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Why am I building a Robotic Car?

My objectives are: The car is controlled from an Android App. The car will have one or two sensors that will prevent it from bumping into walls. The car will be controlled by an Arduino Uno board and a Raspberry Pi 3 computer. The real reasons that I am doing …

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Beautiful Black Eyes

This gallery contains 3 photos.

The HC-SR04 Ultrasonic Sensor finally arrived.  Ordered in March, arrived in May.  The price was cheap with free shipping.  At $2.00 for both the sensor and the yellow mount, I was willing to wait for the parts ship on a slow boat from China. The HC-SR04 sensor works by sending …

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M2.5 Standoffs Arrive

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The M2.5 Standoffs (Spacers) arrived in the mail yesterday.  The original standoffs that I ordered were M2 or 2 mm size.  The Raspberry Pi board has holds for standoffs that are 2.75 mm in diameter.  No M2.5 standoffs showed up in my initial Internet search for parts.  Wasted time and …

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The Wheels are On

This gallery contains 5 photos.

Today, the assembly of my robotic car started.  The motor and wheels were attached to the platform. My first mistake became obvious when I tried to solder wires onto the DC motors.  I purchased wires of a gauge too big for the connectors on the motors.  18 gauge wire is …

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