please i want high sensitive alcohol sensor with auto car ignition disable function circuit diagram ....etc

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we need your help in interfacing diagram of digi international zigbee node with pic 16f877a microcontroller..request u to consider me ....etc

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This Standalone Hardware device (Computer not required) will ring COLLEGE bell at pre-scheduled times of day (all periods) on each day, of the week. Typically, COM time switch can be used to ring COLLEGE bells. It can also be used for other applications where you want a sound to play at preset times. The Device is for colleges, Educational Institutions, Industries and other business where the Bell timer plays a critical role in running the day. The device shows the real time clock during normal operation and a beep announces each bell. Differen ....etc

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how to interface an alcoholic sensor to an 8051 microcontroller ....etc

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A gas detector is a device that detects the presence of gases in an area, often as part of a safety system. This type of equipment is used to detect a gas leak and interface with a control system so a process can be automatically shut down. A gas detector can sound an alarm to operators in the area where the leak is occurring, giving them the opportunity to leave. This type of device is important because there are many gases that can be harmful to organic life, such as humans or animals.
Gas detectors can be used to detect combustible, flammab ....etc

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To get full information or details of pic16f877a interfacing diagram please have a look on the pages

http://extremeelectronicspic16f877a-tutorials/lcd-module-interface-with-pic16f877a/

https://electrosomedc-motor-l293d-pic-microcontroller/

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Analog MQ-3 Alcohol Sensor Interface with AVR ATmega16 Micro-controller and LED display. Here, we will interface an MQ-3 analog alcohol sensor with ATmega16 micro-controller and we will show the value of the MQ-3 analog alcohol sensor in the 1X8 LED array.

Since the output of the MQ-3 Alcohol analog sensor is analog in nature and these analog signals can not be processed directly by the ATmega16 micro-controller. Thus, in the first place this signal needs to be converted to digital value to be processed by the micro-controller. The conversio ....etc

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Abstract

Water is a very precious resource and must be properly utilized. Agriculture is one of those areas which consume a lot of water. Irrigation is a time consuming process and must be done on a timely basis.

The aim of the article is to develop an auto irrigation system which measures the moisture of the soil and automatically turns on or off the water supply system.

The project requires very less human involvement once installed. The circuit is based on PIC microcontroller and also a soil moisture sensor.

A properly configured soil mo ....etc

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pic16f877a microcontroller interfacing apr9600

This powerful (200 nanosecond instruction execution) yet easy-to-program (only 35 single word instructions) CMOS FLASH-based 8-bit microcontroller packs Microchip's powerful PIC architecture into an 40- or 44-pin package and is upwards compatible with the PIC16C5X, PIC12CXX and PIC16C7X devices. The PIC16F877A features 256 bytes of EEPROM data memory, self programming, an ICD, 2 Comparators, 8 channels of 10-bit Analog-to-Digital (A/D) converter, 2 capture/compare/PWM functions, the synchronous s ....etc

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how to implement azigbee with a micro-controller 16f877a ....etc

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