Schematic Parallel Interface AVR Programmer

With this project you can program an AVR microcontroller ATMEL (ATmega8, ATMega32, ...) from a parallel printer LPT1 using ISP functionality In System Programming. This programming type can program and/or configure microcontroller directly on the target board without removing device and put it on a separate programmer. This board is compatible...

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Light Sensor Circuit 1

Tiny Light Sensor With Logic Output Draws LessThan 10µAA light-sensing circuit that consumes very little power canserve as an automatic backlight sensor in portable instruments.This function is easily implemented with a logic gate orSchmitt-trigger inverter, but those approaches draw aconsiderable amount of supply current.Figure 1. This light...

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Ultrasonic Sensor Circuit4

40kHz Ultrasonic Driver Circuit for a few poundsHere is a circuit diagram for an ultrasonic driver circuit suitable for the the Speed of ultrasound and Lloyd's Mirror usingUltrasonic Waves experiments. Test the circuit on a plug-in prototype board to make sure I've transcribed the component values correctly. I got the circuit to work on a...

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Ultrasonic Sensor Circuit 3

Arduino + Ultrasonic sensor + MP3In this project for Martí Guixé we built a small autonomous devicewith Arduino that can detect the presence of people with anultrasonic sensor. It then proceeds to play an MP3 song with aYampp Industrial II Ultrasonic range finder uses few componentsMeasuring distance with ultrasonic signals requires a transmittingultrasonic...

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Schematic Robot Project : Nickel-O-Matic

Nickel-O-Matic was designed to entertain and provides gratuitous mechanical motion rather than efficient production. Nickel-O-Matic uses inkjet technology to print a custom message on both sides of 1-1/2" diameter blank wooden nickels. The robot uses a BASIC Stamp 2 to control much of the mechanical movement and a Propeller Chip to control...

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Control Checking the maintenance and reparation of the PLC and making the report

Testing the PLCAfter the PLC is repaired then do the testing by operating the PLC as according to procedure. Perceive and check, whether the PLC run normally or there is still error which emerge. If there is still error, reenact the reparation step.Example of the Omron PLC test run procedure;Power Supply Application Check the PLC’s power...

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Control Maintenance and reparation the PLC

This section explains matters that must be known in maintenance and reparation the PLC. Applying the safety procedureDuring execution of the work, the safety procedure must be executed truly so that the risk of the work accident can be avoided.Example of applying the safety procedure; Use the safety equipment Follow the instruction of...

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Control Planning and preparing the work to maintain and repair the PLC

Planning is basic function of management. So that the risk could be minimized, with that all the work, action and policy must be planned beforehand. While preparation represent the follow-up from planning, where in preparation all material and equipment required to be collected and checked before the work is executed. Planning and preparation...

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Control Introduction

My article in this time explains how to maintain and repair a Programmable Logic Controller (PLC). This article I compile in 3 titles. To see the picture on this article more detail, you can access on the picture.Title 1 : Planning and preparing the work to maintain and repair the PLCExplains about the matters that must be planned and prepared before maintain and repair the PLC.Title 2 : Maintenance and reparation the PLCExplains...

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Schematic Cheap AVR I2C Tiny Usb

I2c-tiny-usb made to provide a cheap generic i2c interface to be attached to the usb. It could be as simple and cheap printer port to i2c adapters. A USB solution has several advantages such as the built-in power supply and no cpu intense bitbanging is required on the host side. This USB solution even requires less parts than some printer...

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