Showing posts with label sensor. Show all posts
Showing posts with label sensor. Show all posts
Sunday, September 7, 2014
Alcohol Gas Sensor MQ 3
Alcohol Gas Sensor MQ-3 is an alcohol sensor is suitable for detecting levels of alcohol directly, for example on our breath.
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Friday, September 5, 2014
TSC230 Color Sensor
Color Sensor TCS230 color sensor is a chip that works with the converting acceptance of a certain color of light emitted into the shape of frequency. TCS230 Color Sensor composed dri two main parts, namely a light-receiving section arranged in an array photodioda and Chaya koncerter this part to the frequency.
Read moreSunday, August 31, 2014
Basic LM35 temperature sensor circuit
This is basic of workmaship LM35 temperatur sensor, whish is taken from the LM35 spending and boosted again by the amplifier op-amp. High output if the sensor is received by ic LM35 high temperature . You can use the output as driver relay, fan , or other. And if yo want to see modifications LM35 temperature sensor see here.
Wednesday, August 27, 2014
Water Level Sensor Schematics
This simple water level sensor circuit monitors the presence of water in a certain location or container. The circuit sends an acoustic alarm when it senses a drop of water leak. It is very simple to build and it is made of a single IC and some passive components. Check out the water level indicator circuit too!
source [link]
The IC LM1801 is a low power comparator that can deliver high output current if needed. When water hits the sensor, the reference voltage is overshot and the IC drives the ceramic transducer to beep. It is also possible to connect several sensors to the water level monitor circuit. The sensor can be easibly made out of a small piece of PCB that is etched with the proper pattern. The decoupling capacitor C3 is a 100uF/16V electrolytic capacitor.
source [link]
Saturday, August 23, 2014
Fire alarm with light sensor
Fire alarm can be made with a light sensor (LDR) as in the article with the title of Fire Alarm with this LDR sensor. Principles of fire detection Fire Alarm with LDR sensor is to detect the presence of smoke through the LDR. LDR in the series Fire Alarm does not stand alone in detecting a fire, but the LDR in the pair with the light shining on the LDR.
Hence, in the detected smoke from the fire then the intensity of light received by the LDR LDR decreases and eventually trigger an alarm system on a series of Fire Alarm with this LDR sensor. Part 2 that in the series of Fire Alarm with Sensor LDR are some of the sensors, tone generator, audio power.
Image Series Fire Alarm with Sensor LDR
Function Section of the Fire Alarm with Sensor LDR
Part of LDR and light sensor facing to fire smoke detection
Part trigger using transistors and regulators as a trigger tone generator 7805
Tone generator section with IC UM66
Power audio section uses an audio power IC TDA 2002 which is equipped with voleme control (R3)
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