Tuesday, February 4, 2014

Ultrasonic Rangefinder & Flame Sensor

After creating the UltraSonic Sensors that we end up using in the competition, we decided to place the sensor in the front of "Sunny". We determined this position of the sensor because in our strategy of finding the candle. We needed a sensor determining how far away the candle is and how to move towards the candle without touching it. 
The UltraSonic Sensor was probably our most reliable and consistent sensor of them all. We had the least issues with it and its values it was putting out. The Ultrasonic Rangefinder measures distances using sound sonar. It sends out a pulse and hears an echo when the pulse bounces back to the bot.  
This is our flame sensor. I personally made this sensor and initially it was perfect and collected great data. We noticed as we started using Sunny that the Robot needed to endure tough handling. Unfortunately the flame sensor was one of our greatest issues. Since our flame sensor was nailed and taped on a servo it endure many movements. Ultimately our sensor worked properly with our code but or code need some modifications to get the BOT back to sensing moving towards and extinguishing.  

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