1 The Robot control using the wireless communication and the serial communication

Build an RC Plane Finder

The lost plane finder introduced here is a little on board beacon, also known as lost model alarm/crashed aircraft beacon, which helps you find a crashed or downed radio-controlled plane. The concept is to get an alert from a piezo sounder if there are no signals from the associated radio-controlled transmitter. Usually, the radio transmitter provides a set of pulses every 20 milliseconds, which, in turn, sends the radio receiver a separate pulse to each of the servos at the same interval. In this circuit, an alarm will sound when the radio receiver no longer receives the set of pulses from the radio transmitter. Fig. 1: A typical lost plane finder To locate the aircraft, all you have to do is switch your transmitter off and the system will start to beep. The circuit is very easy to build and does not require any special parts like costly microcontrollers. A typical lost plane finder is shown in Fig. 1. Circuit and working Circuit diagram of the lost plane find...

RFID Based Access Control System using 8051

In this project, we are going to build an RFID Based Access Control System using 8051 Micro Controller . The same system can be named like RFID based door lock or RFID based access management system. If you have been to big hospitals or companies, you might have seen how they used RFID based locks to restrict access to certain areas. In hospitals, only hospital staff with approved RFID tags can access Intensive Care Unit and such restricted areas. So let’s begin to build the system. Project Description A RFID based Door Lock or Access Control System is based on some simple concepts. We store a set of RFID card data in our system, say 3 or 10 RFID card data. When the person with the right RFID card (compatible to data preloaded in our program/system) come and swipes his RFID tag, access will be granted. When the person with the wrong RFID card (whose data is not loaded in our system) swipes his RFID tag, access will be denied. I hope you understand the system concept of RFID based...

Introduction To Smart Wi-Fi

We need faster tools and media to prove our ideas, and this is where ready-to use modules like Smart Wi-Fi enter. Fig. 1 shows the top side of Smart Wi-Fi module. Fig. 1: Smart Wi-Fi module Fig. 2: Block diagram of the introduction of Smart Wi-Fi The module is low-cost and versatile; all a developer needs is a USB cable and it is ready to work. For software developers, working with hardware is always a pain, and this is one of the biggest reasons why many ideas never exit a computer. Smart Wi-Fi enables making a product quickly and reliably. With open software resources and hardware data, moving to the final product after the proof of concept is also easy. One of the major aims for writing this article is to show the versatility of this product and show how quick the development can be. In this article a few tests with Smart Wi-Fi are discussed, which show the applicability of this module for development of the Internet of Things (IoT) products. Fig. 3: C...

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