to send a trigger signal to it for initiating transmission and receive the echo signal from it for distance calculation. The HR-SR04 has four pins namely Vcc‚ Trigger‚ Echo‚ GND and they are explained in detail below. 1) VCC : 5V DC supply voltage is connected to this pin. 2) Trigger: The trigger signal for starting the transmission is given to this pin. The trigger signal must be a pulse with 10uS high time. When the module receives a valid
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Compass Project Final Report By Carson Bell February 2013 ECT295L Applied Project Lab DeVry University – Online Presented to Professor John Golzy Abstract The purpose of this paper is to explain how to build a digital compass and program the pic16f72 microchip‚ which will result in a fully functional directional compass. Additionally‚ I will discuss how I then modified the circuit board‚ as well as the software‚ in order for the digital compass to display arrows that point North when
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identification number (PIN) before they’ll be granted any level of access into the system. The PIN is similar to the PIN used by ATM machines. When a user inserts the smart card into the card reader‚ the smart card prompts the user for a PIN. This PIN was assigned to the user by the administrator at the time the administrator issued the card to the user. Because the PIN is short and purely numeric‚ the user should have no trouble remembering it and therefore would be unlikely to write the PIN down. But the
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somebody is at the gate. The circuit comprises a transmitter unit and a receiver unit‚ which are mounted face to face on the opposite Fig. 4: Mounting arrangement for transmitter and receiver units Fig. 1: 38kHz IR transmitter circuit Fig. 3: Pin configurations of TSOP1738 and UM66 Fig. 2: Receiver circuit pillars of the gate such that the IR beam gets interrupted when someone is standing at the gate or passing through it. The transmitter circuit (see Fig. 1) is built around timer NE555
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labels master‚ slave or cable select best – hard drive installation master on primary cable only device on cable Other IDE devices on secondary cable CD/DVD 2nd Hard drive This improves performance Pata Cables 40 pin to 40 wires 40pins to 80 wires Extra wires = ground 40 pin connector 18in max length ATA 100= 100 Mbps ATA 133= 133 Mbps Serial ATA Serial ATA connector Smaller than PATA Faster than PATA More expensive One drive per cable If motherboard supports SATA Two or more
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RFID BASED SECURED ACCESS SYSTEM USING 8051 MICROCONTROLLER (AT89C51) BY N.KALYANI (07241A0272) G.NAVYA CHOWDARY (07241A0282) CH.S.A.L.PAVANI (07241A0286) R.SANDHYA RATNA KUMARI (07241A02A0) CONTENTS 1. 2. 3. 4. ABSTRACT SCHEMATIC DIAGRAM CIRCUIT DESCRIPTION INTRODUCTION 4.1. RFID MODULE 4.2. MICROCONTROLLER 4.3. MAX 232 4.4. LCD 4.5. KEIL SOFTWARE 4.6. PROTEUS 5. COMPONENT DESCRIPTION 5.1. AT89C51 5.2. RFID MODULE 5.3. MAX 232 5.4.ISP PROGRAMMER 6. 7. CODING BIBILOGRAPHY
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withdraws money Primary Actor: Customer Stakeholders: * Customer * Bank * Service Tech * Customer Service Preconditions: Customer must have ATM card and a PIN number Basic Flow: * Customer Inserts ATM card and removes quickly * Customer punches in PIN number * Customer selects amount to withdraw * Customer retrieves money and receipt * Customer ends transaction ATM Deposit Basic Description: Customer login and
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Contents 1. 1.1 Delivery and Settlement Procedure Types of Delivery Logic 1.1.1 Both Option 1.1.2 Sellers Option 1.1.3 Compulsory delivery Submission of delivery intentions 2.1.1 Intention from Seller 2.1.2 Intention from Buyer Mode of giving intentions Dissemination of intention Delivery Marking/Matching Delivery Based Report to Members Delivery Based Margins 2.6.1 Tender Period Margin 2.6.2 Delivery Period Margin Page No. 4 4 2.1 6 2.2 2.3 2.4 2.5 2.6 6 7 7 7 7 2.7 Settlement
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checking inoperative. Number of chips • A few types of motherboards require a particular number of chips per Module. They are mainly 486 boards and they might not work with a mix of three-chip 30-pin SIMMs with nine-chip 30-pin SIMMs‚ or a mix of ’single-sided’ 72-pin SIMMs with ‘double-sided’ 72-pin SIMMs Voltage • Most memory these days come in 5V. If the motherboard manual indicates that it also supports 3.3V memory‚ the jumper setting should be checked. If 3.3V is installed; any upgrade should
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An Industrial training report On AUTOMATIC RAILWAY GATE CONTROL Submitted in partial fulfillment of the requirement of the degree of BACHELOR OF ENGINEERING In ELECTRONICS AND COMMUNICATION ENGINEERING By M.SHALINI ANIL NEERUKONDA INSTITUTE OF TECHNOLOGY AND SCIENCES Sangivalasa -531162‚ Bheemunipatnam (mandal) Visakhapatnam‚ Andhra Pradesh 2009-2013 ACKNOWLEDGEMENT Our sincere thanks and gratitude to Roshan sir for all the support and kindness he has bestowed upon us
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