Circuit Ideas I Electronic DIY Projects I Robotics
2 Tone Audio Oscillator is a simple circuit which will generate audio tone on the press of a button. This circuit can be very useful as test equipment for audio equipment or as a signal source in an audio input. Input – 5 ~ 12 VDC @ 100 mA Output – Speaker, 8 Ω / 0.25 W Two switches produce
Read more3 Tone Audio Oscillator is a simple circuit which will generate audio tone on the press of a button. This circuit can be very useful as a test equipment for audio equipment’s or as a signal source for an audio input. Input – 12 VDC @ 100 mA Output – Speaker, 8 Ω / 0.25 W Three switches produce 1.2
Read more3 Tone Musical Bell project is built around BT66T (UM66) IC driving LM386 audio amplifier to give that extra punch. Input 6 VDC @ 200 mA Output 8 Ohms 0.5 W Speaker Terminal pins for supply voltage and speaker connection Power-On LED indicator Onboard push to ON switch Four mounting holes of 3.2 mm each PCB dimensions 35
Read moreLight Sensitive Audio Oscillator project is a fun loving project which will create different sound effects depending on the light falling on the sensor (LDR). Features Supply input 5 ~ 12 VDC Output 8 Ohms, 0.5 W Speaker Terminal pins for supply voltage and speaker connection Power-On LED indicator PCB dimensions 38 mm x 44 mm
Read moreThis small water sensor alarm circuit makes a loud warning sound when a water sensor detects a quantity of water. Features Input : 9 VDC @ 40 mA Output : Buzzer Berg connector for voltage supply input Power-On LED indicator Four mounting holes of 3.2 mm each PCB dimensions 35 mm x 32 mm
Read moreDark Sensitive switch project based on single BC547 transistor, Relay operates when light that falls on the LDR, goes below a set point. It’s very simple and low cost dark sensitive switch required few components. Features Input : 12 VDC @ 55 mA Relay output : NC – C – NO Onboard preset to set the level Power-On LED indicator
Read moreBipolar stepper drive board described here has been designed around TB6600HG IC. The TB6600HG is PWM chopper type single chip bipolar sinusoidal micro-step stepping driver. Maximum Load 4.5A, Supply 10V to 42V DC. Features Based on Single chip and Second chip for auto half current control Suitable for Nema17, Nema23, Nema34 bipolar stepper motors Suitable
Read moreThis project will provide 5 V @ 700 Amp DC Regulated Supply. The project is based on the Lm7805 voltage regulator in TO220 Input 7 – 15 VAC Output 5 V @ 1 A peak (700 mA ideal) regulated low ripple DC voltage Onboard bridge rectifier to convert AC to DC Thermal overload/short circuit protection (provided by IC feature) Screw
Read moreThis project is a solution to power up most of devices or projects required dual (+/-) adjustable power supply. The circuit is based on LM317 positive and LM337 negative voltage regulator. LM317 series of adjustable 3 terminal regulator is capable of supplying in excess of 1.5A over a 1.2V to 30V DC output range, due to TO3 package of IC
Read moreThe Project works as electronic toggle switch. The circuit is based on CMOS CD4013 Flip Flop IC, The circuit has two stable states, ON and OFF. Once it is ON, it remains ON till you press the switch again. A short button press of a tactile switch SW1 latches the circuit ON and another toggles it back OFF. Relay switch
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