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Park Assist Circuit
Posted on Thursday, May 9, 2013   •   Category: Sensors

Park Assist Circuit

Park Assist circuit was designed as an aid in parking the car near the garage wall when backing up. LED D7 illuminates when bumper-wall distance is about 20 cm., D7+D6 illuminate at about 10 cm. and D7+D6+D5 at about 6 cm. In this manner you are alerted when approaching too close to the wall. All distances mentioned before can vary, depending on infra-red transmitting and receiving LEDs used and are mostly affected by the color of the reflecting surface. Black surfaces lower greatly the device sensitivity. Obviously, you can use this circuit in other applications like liquids level detection, proximity devices etc.

     Solar Recorder
     Ultrasonic Parking Assistant
     Homemade Metal Detector
     Electronic Thermometer using LM35
     Thermostat Controller with Relay using LM35 and TL431
     Light / Dark Relay Switch
     Park Assist Circuit
     PIR Motion Detector
     Temperature Controlled Fan
     Digital Thermostat with LED Temperature Display
Park Assist Circuit

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]



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