This is a project that we have done several times in the past. Serial communication between Arduino and Bluetooth is very easy. There are several apps available online that you can use to control Arduino using smart phone app and also send data from Arduino to your smart phone. In this particular experiment, we will…
Introduction In an era characterized by rapid technological advancements and a growing emphasis on collaboration, open source principles have transcended the realm of software and made an indelible mark on hardware development. Open source hardware (OSH) represents a paradigm shift in innovation, fostering a community-driven approach that democratizes access to technology and enables a more…
Contact-less controlled automatic wardrobe light turns on the LED when you open the wardrobe door. Τhe project is based on Hall effect IC including LED driver and tiny magnet. Board doesn’t require any mechanical switch. When magnet is close to the board, LED is off, when you open the wardrobe door magnet goes far from…
LUX Meter project has been design to measure the illumination. Illumination is luminous flux falling on surface area of photo diode. This illumination converted to corresponding voltage using Op-Amp circuit. SPECIFICATIONS Supply 9 VDC PP3 Battery @ 20 mA Onboard Photo Diode Onboard preset for calibration Range selection via jumper 10mV/LUX, 1mV/LUX, 0.1mV/LUX Interfacing is…
This project is a sound-activated switch. DESCRIPTION Clap switch/Sound-activated switch designed around op-amp, flip-flop, and popular 555 IC. Switch avoids false triggering by using a 2-clap sound. Clapping sound is received by a microphone, the microphone changes the sound wave to an electrical wave which is further amplified by the op-amp. 555 timer IC acts…
This project is an automatic PIR sensor. DESCRIPTION Project is based on Holteks IC HT7610A, which is a CMOS LSI chip designed for use in automatic PIR lamp, flash or buzzer control. It can operate in 3-wire configuration for relay applications. In our project we have used relay instead of Traic to connect any kind…
5 LED VU Meter kit is based on LB1409 IC from SANYO, which will indicates the volume level of the audio signal it senses SUPPLY 12V DC @ 50mA PR1 REF SET PR2 AUDIO LEVEL SET SCHEMATIC PARTS PCB DOWNLOADS Audio_VU_Meter.pdf
SCHEMATIC PARTS LIST PCB DOWNLOADS IR_remote_volume_controller.pdf
4 Channel Infrared (IR) Remote controller is using HT12A and HT12D encoder/decoder chips from Holtek. FEATURES Supply – Transmitter : 3 to 5 VDC, 5 V @ 20 mA & Receiver : 5 VDC @ 200 mA Output: 4 channel Latch or Momentary onboard Jumper for selection Crystal based oscillator for the reliability of operation…
This project describes how to build a “soft touch” switch. By “soft touch” we mean that you have to push once to set device ON and push again to set device OFF. This kind of switch works by latching a relay to ON state with push of a button and with another push latch is…
This project is a general-purpose 8 Channel Relay Board. DESCRIPTION 8 Channel Relay Board is a simple and convenient way to interface 8 relays for switching application in your project. Input voltage level support TTL as well as CMOS. Easy interface with Microcontrollers based projects and analog circuits. SPECIFICATIONS: Input supply 12 VDC @ 336…
The Project works as electronic toggle switch. DESCRIPTION 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…
This project is an one Channel Relay Driver suitable for a variety of projects. DESCRIPTION Single Channel Relay project is a simple and convenient way to interface a relay for switching application in your project. SPECIFICATIONS: Input – 12 VDC @ 42 mA Output – SPDT relay Relay specification – 5 A @ 230 VAC…
This stepper pulse generator project is an easy solution for stepper controller drive. It’s a very important tool and can be used to drive stepper in standalone mode. It generates square wave pulses in frequency range 0-50Khz. This project has multiple features which are a must for stepper controller. It has on board frequency generator…
LCD is very important part of many DIY and industrial projects. The 16X2 LCD shield has been designed to develop LCD related projects using 28-40 Pin Pic development board or DSpic development board, along with LCD this shield includes LMD18201 DC Motor driver , 2 Trimmer potentiometer and 4 tact switches with jumpers. Jumpers can be…
3AMP DC Motor speed and direction controller using MC33035 IC from on semiconductor, though the MC33035 was designed to control brushless DC motor , it may also be used to control DC brush type motors. MC33035 driving a Mosfets based H-Bridge affording minimal parts count to operate a brush type motor. On board potentiometer provided…
