Digital IR sensor module construction and operation

 

Usually, for small functions and detecting any obstacles or object, IR sensors are frequently used in Robotics because they are very cheap.  In this article, we will discuss how to make an IR sensor pair and discuss its working.  For this, firstly we need an IR LED and an IR reciever or photo diode.

PIC 18F-series MCU dev-board

 

The main aim of this paper is to study and create a general purpose printed circuit board for general application in the field of robotics using a PIC 18F4550(Peripheral Interface Controller) microcontroller as the heart of the circuit. Different types of robots have different requirements. The task at hand is to study these requirements and create a general purpose Printed Circuit Board which can be used as the circuitry of a number of different kinds of robots. An ideal Circuit design would utilize all the functions of the microcontroller being used. The main features of our robot’s brain are analog to digital conversion, pulse width modulation (can be thought of as digital to analog conversion), communication techniques. We also need to provide signals to govern our relay system and a way to connect to mechanical appendages. All these will be inculcated in our design.

Alarm system (Burglar alarm) based on P89v51rd2 8051 microcontroller

 

Burglar alarms have become standard equipment in stores and other businesses, and they're becoming increasingly common in private homes as well. If you've ever shopped for a home security system, then you know there are a wide variety of options available. These systems range from do-it-yourself kits you can pick up for $10 to sophisticated whole-house security networks that must be installed by professionals. But, as it turns out, most alarm systems are actually built around the same basic design concepts.

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