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This is the Simple Ac line Voltage Announcer Circuit Diagram. The range of this simple ac-voltage monitor is 100 to 140 Vac, with a resolution of 1 V. The speech processor interprets an 8-bit binary input code from an analog-to-digital converter. The processor`s pulse-code-mod ulated output then passes through a filter and an amplifier before driving tbe circuit`s speaker to vocalize the corresponding number. Each time switch S1 is _pressed, the speech-processor program enun ciates tbe monitored voltage readings from 100 to 140 V, depending on the code at the input of a 27C64 EPROM.   Simple Ac line Voltage Announcer Circuit Diagram The voltage-monitoring circuit consists of a bridge rectifier, filter capacitors, and a 10-Kilload resis tor. A divider, RA and RB, limits the input voltage to a maximum 2.55 V. The aid converter, IC4, then sends the voltage reading to tbe 27C64 EPROM, ICS. Pressing Sl sends a negative transient pulse to the write, WR, input of the aid converter, I...

Line Follower Robot Glance - Line Follower Robot - a kind of robot which included into the category robotmobile are designed to work in an autonomous and have the ability to detect and move to follow (follows) the existing line on the surface. Control system used is designed to feel that there are pathways of movement and maneuver in order to remain able to follow that line. Robots of this type quite a lot of interest for those who are just learning to robot technology. Even competitions Line Follower Robot, often held regularly at various universities .In industry, robots of this type is often used to to move goods from one place to another. By modifying slightly the sensor line follower robot can then be developed into a Wall Follower Robot, a robot that can move around the wall. Sensor On Line Follower Robot Sensors , can be analogous to the 'eye' of a robot that serves to 'read' the black line of the track robot. So that the robot is able to know when he will turn r...

This circuit will be used for a toy automotive to follow a white line. The motor is either a 3v sort with gearing to steer the automotive or a rotary actuator or a servo motor.When equal lightweight is detected by the photo resistors the voltage on the base of the primary transistor are mid rail and the circuit is adjusted via the 2k2 pot that the motor doesn't receive any voltage. When one in all the LDR's receives a lot of (or less) lightweight, the motor is activated. and also the same thing happens when the other LDR receives less or more light.

Line Follower Robot with AVR ATMega8535 - Make the robot line follower is exciting, especially for those who like to friends experimented with AVR microcontroller ATMega. "Line Follower Robot" is a robot designed to follow the trail (can be a line putus2 line or even a point to point). Creating a Line Follower Robot uses an AVR microcontroller ATMega 8535 is very possible and very reliable. Due to the design of a Line Follower Robot should we think that the trail will be followed step by step Line Follower Robot will be made to track or path in Line Follower Robot is passed. And of the Line Follower Robot needs tersbut feature2 owned by AVR microcontroller ATMega 8535 is sufficient and meets the needs of the Line Follower Robot. Line Follower Robot in the article with AVR ATMega8535 I made a simple graffiti to be possessed by a Line Follower Robot. Line Follower Robot Block Diagram of the AVR ATMega8535 Block Diagram of Line Follower Robot with AVR ATMega 8535 Function Block...

2 .Line Intercom Telephone Line Changeover .The circuit presented here can be used for connecting two telephones in parallel and also as a 2-line intercom. Usually a single telephone is connected to a telephone line. If another telephone is required at some distance, a parallel line is taken for connecting the other telephone. In this simple parallel line operation, the main problem is loss of privacy besides interference from the other phone. This problem is obviated in the circuit presented here. Under normal condition, two telephones (telephone 1 and 2) can be used as intercom while telephone 3 is connected to the lines from exchange. In changeover mode, exchange line is disconnected from telephone 3 and gets connected to telephone 2. . Circuit diagram: 2-Line Intercom-Cum-Telephone Line Changeover Circuit Diagram . For operation in intercom mode, one has to just lift the handset of phone 1 and then press switch S1. As a result, buzzer PZ2 sounds. Simultaneously, the side tone is h...

Line Follower Robot with AVR ATMega8535 - Make the robot line follower is exciting, especially for those who like to friends experimented with AVR microcontroller ATMega. "Line Follower Robot" is a robot designed to follow the trail (can be a line putus2 line or even a point to point). Creating a Line Follower Robot uses an AVR microcontroller ATMega 8535 is very possible and very reliable. Due to the design of a Line Follower Robot should we think that the trail will be followed step by step Line Follower Robot will be made to track or path in Line Follower Robot is passed. And of the Line Follower Robot needs tersbut feature2 owned by AVR microcontroller ATMega 8535 is sufficient and meets the needs of the Line Follower Robot. Line Follower Robot in the article with AVR ATMega8535 I made a simple graffiti to be possessed by a Line Follower Robot. Line Follower Robot Block Diagram of the AVR ATMega8535 Block Diagram of Line Follower Robot with AVR ATMega 8535 Function Block...