Under & Over Temperature Sensor AC Switch for Heater, Fan, and Airflow Controller Using TMP01

Under & Over Temperature Sensor AC Switch for Heater, Fan, and Airflow Controller The TMP01 is a temperature sensor that generates a voltage output proportional to absolute temperature and a control signal from one of two outputs when the device is either above or below a specific temperature range. Both the high/low temperature trip points and hysteresis (overshoot) band are

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Heater Controller Using UAA2016

The UAA2016 is designed to drive triacs with the Zero Voltage technique which allows RFI-free power regulation of resistive loads. Operating directly on the AC power line, its main application is the precision regulation of electrical heating systems such as panel heaters or irons. A built-in digital sawtooth waveform permits proportional temperature regulation action over a +/-1°C band around the

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Deferential PWM Audio Signal Audio Amplifier for Voice Record/Playback, Music, and Sound Effects IC Using LM386

Lots of Voice Record playback, music and sound effects IC provide PWM signal output to drive small speaker which is usually low signal just can drive small speaker.  Boosting this signal required special audio amplifier which amplify the deferential PWM signal.  This amplifier is solution and help to amplify PWM +/- dual signal, the amplifier is based on LM386 IC.

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PS2 Wireless Remote Control Robot Controller Using PIC Micro-Controller

The  PS2 Mobile Robot Controller is microcontroller board designed to drive mobile robots, DC Motor controller interface allows wireless control of two DC motors, two PWM and 4 Direction signal outputs to drive two more motors , 4 momentary Signal out to control Solenoid, Lights, and Power on/off. DC motors are controlled using the two joysticks Left Y and right

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64 Channel Infra-Red Remote Transmitter Using uPD6122-PT2222M

64 channels Infra-Red Remote Transmitter circuit build around PT2222M IC, The IC is pin to pin compatible with NEC uPD6122 respectively, the remote is capable of controlling 64 functions keys and 3 double keys. Features CMOS Technology Low Power Consumption (2V-3.3V) Using SEL Jumper Can Support 128+6 Function Codes Application Audio Equipment TV Cable TV Air Condition DVD Player Robotics

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Sound Activated/Clap Switch Using SMD Components

Clap switch/Sound-activated switch designed around op-amp, flip-flop and popular 555 IC. Switch avoids false triggering by using 2-clap sound. Clapping sound is received by a microphone,  the microphone changes the sound wave to electrical wave, which is further amplified by op-amp. 555 timer IC acts as mono=stable multi-vibrator then flip-flop changes the state of output relay on every two-clap sound.

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