Schematic Arduino Line Following Robot

The project goal is to build a line follower robot that can follow a dark like, on a light background. It uses an Arduino Duemillanove with the AVR ATMega 328 as main processor. For driving force the project equipped with two Parallax Futaba Continuous Rotation Servos. The robot sensor uses Pololu QTR-6A IR Reflectance Sensor Array. The system powered by 4 rechargeable NiMH Duracell AA Batteries.

 "It first calibrates itself for 5 seconds. You move it across the line a few times so it gets used to the difference in reflectance. After the calibration it begins moving forward", said DuFFxP93, the designer.

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Schematic Arduino Based RFID Pet Feeder

The project shows you how to build a RFID pet feeder based on Arduino and RDM630 RF-reader with a self-made circular antenna. The feeder will opens for the pet that wears a collar with an RFID tag.

 Project feature including : timer-controlled open duration, proximity sensor (Sharp GP2D120) prevents door from closing while the cat is eating, sensors detect whether the door is fully opened/closed, automatic/manual mode switch (on manual it opens with a pushbutton), sliding door using old CD-rom player.

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Schematic Arduino Door Lock with Keypad

This is an electronically-controlled dead bolt lock project based on Arduino. It use old CD player second motor that provides a nice linear motion. To use this lock the user need to type in the correct code and presses the # key to open or close the lock. The green LED indicates the door is unlocked. Red indicates locked.

They keypad has 12 keys but only 10 wires. Reading the keypad is not as simple as checking to see which of the 12 switches is closed. The keys must be constantly scanned to see which if any keys are depressed. Scanning the keypad is done by multiplexing through 6 of the wires on the keypad, alternately setting them LOW and then checking the other 4 wires (blue, green, yellow, red) on the keypad to see if a button is pressed.

Watch the arduino lock in action


tag: door lock, linier motor, lock with keypad, arduino project src

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Schematic Arduino Autopilot Control

ArduPilot is a full-featured autopilot based on the Arduino open-source hardware platform. It is a custom PCB with an embedded processor (ATMega168) combined with circuitry to switch between RC control and autopilot control (that's the multiplexer/failsafe, otherwise known as a "MUX"). This controls navigation (following GPS waypoints) and altitude by controlling the rudder and throttle. These components are all open source. This autopilot is fully programmable and can have any number of GPS waypoints (including altitude) and It uses infrared (thermopile) sensors for stabilization and GPS for navigation.



tag : Arduino project, Auto Pilot Control, Embedded project src

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