Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....

1B32 application circuit with multiple pressure sensor shown in Fig. Excitation power through AD542, after TIP32 then drive multiple bridge sensors. AD542 is a Bi-FET as the in..

Sound or light sensors corniected to J2 produce a voltage that is amplified by ICl-a and ICl-b. A positive trigger voltage that is developed by D1 and 1)3 and amplified by ICl-d, drives 1C2 and 1C1 to trigger SCR1. SCR1 is connected to a strobe. ..

In those cases we want to measure the temperature in an area far from where it is. The imaging unit installed, you should find some way to connect the latter with the necessary sensor. The cables we use most often will have three two conductors for power....

To decouple the sensors from the meter amplifier, either a reference junction at ooc or a bucking voltage set at room temperature may be used. The latter method is simpler, but is sensitive to changes in ambient temperature. ..

The single-chip, burglar -alarm circuit shown uses a dual 556 timer, draws 10 mA of standby current, and generates a pulsing alarm signal that conserves battery energy. Once activated, the alarm wilLremain on, independent of the subsequent state of any of....

In applications involving strain gauges, accelerometers, and thermal sensors, a bridge transducer is often used. Frequently, the sensor elements are high resistance units requiring equally high bridge resistance for good sensitivity. This type of circuit....

The sensor circuit is adaptable to different liquids and sensors. The constant-current source drives current through the sensing probe and a fixed resistor..

This design measures the differential temperature between two sensors. Sensor Tl, located before the heater resistor, assumes the fluid"s temperature before it is heated by the resistor. Sensor TZ picks up the temperature rise induced into the fluid by the....

A sensor turns on Ql to activate the low-frequency 555 oscillator, which pulses LAMP II. Sensor may be sensitive to changes in light or temperature. Either RA or RB can be sensors, as desired. A decrease in RB or an increase in RA will cause the NE555 to....

This circuit detects an object passing in one direction but ignores it going the opposite way. Two sensors define the sense of direction. The object blocks the light to phototransistor Ql or Q2 first dependent on the direction of approach. When the object....

This simple IR detector turns on a real LED when Q2 is exposed to invisible IR radiation found in fiber-optics systems, position sensors, and TV remote-control units. The device can be built on top of a 9V battery and held in place with RTV. Its power....

In this circuit, IC1A and IC1B act as a monostable multivibrator. Any input from the sensors SI through..

As shown below, it is a circuit diagram of a portable gas detector. The portable gas detector circuit is used mainly in electrochemical sensors, dual-channel micro-power amplif..

Ceramic gas sensors can also be used to analyze the content of alcohol vapor. With the corresponding sensor circuit can be detected with a blood alcohol content. Its working pr..

A simple burglar alarm circuits, sensors pyroelectric sensor IRA-E100SZI. When human movement is detected, the pressure on the electric buzzer alarm whistle. Sensor receives si..

As shown in FIG alcohol detection alarm controller circuit. QM-NJ9 for alcohol gas sensors, if detected the odor of alcohol, the AB-QM-NJ9 between resistance becomes smaller, t..

Automotive engine pulse points or other sensors to be filtered in the transmission device 3130 CMOS op amp, the op amp is used as a comparator to complete the input conditions...

AD7714 circuit constituted by a pressure measurement system is shown in Fig. BP01 is Sensym companys pressure sensors. The BP01 connected into a bridge circuit, from OUT +, OUT..

Application Circuit biaxial magnetic field sensor shown. Using a biaxial magnetic sensor HMC1002, two AMP04 (A1, A2), the magnetic field can simultaneously measure the X-axis d..

Almost UGN3113U use open collector Hall IC switch for position sensors. The current limiting circuit has a crystal Camp V, and take R, l. Skfl, R, 300CZ, rR lying a 5V, R. 0.15..

Amplifier A1 by the voltage across the sense resistor sensors to monitor the load current ILOAD. Power management channel uses a similar circuit, the difference is integrated r..

FIG humidity / frequency conversion circuit. The same as the above humidity sensors, humidity 76% isochronous The equivalent capacitance of 500pF, capacitive relative humidity variation rate was +1.7 pF /%. Circuits, A1 is the integrating circuit,..

With a three-wire serial interface smart temperature sensors DS1620 and SPI bus interface circuit as shown below: ..

8 NC temperature adjusting circuit shown, which is mainly composed of D/A converter, a reference power supply, amplification, temperature sensors and other components. This cir..

Adjust RP1, RP2 can be preset temperature control point, 555 circuit Schmitt inverter circuit with relay device automatically. T-121 temperature control circuit constituting th..

As shown by simple smart temperature sensors based on I2C bus interface configured as shown thermostat controller circuit. LM75 through 2N3904 transistor to drive the relay coi..

As shown in FIG grounds with three-wire serial interface smart temperature sensors DS1620 small electric heater temperature control circuit. When ..

As shown in FIG frequency power supply noise filter circuit. The circuit is a double-T filter, can be used to amplify (such as sensors) weak signal, to mixed 50Hz (or 60Hz) pow..

BISS0001 is a sensor signal processing with higher performance integrated circuits, which together with the pyroelectric infrared sensors and a small amount of external components constitute passive pyroelectric infrared switch. It can automatically..

BISS0001 is a sensor signal processing integrated circuit with higher performance, it is accompanied pyroelectric infrared sensors and a small amount of external components con..

Circuit is shown. It includes a full range of vibration sensors, follower, lamp relay control circuit, voice sounding circuit, high-frequency oscillation circuit and the AC rec..