USB Sound Card with PCM2702
https://www.electronics-lab.com/project/usb-sound-card-with-pcm2702/
Make a sound card is no more a complex issue. If you use great IC PCM2702 from BURR BROWN / Texas Instruments you can create a fully functional USB sound card. This sound card can be powered from USB port and has one stereo output. You dont need to install any driver for Windows XP […]
8 Channel LPT relay board
https://www.electronics-lab.com/project/8-channel-lpt-relay-board/
Specifications Channel Relay Board is a simple and convenient way to interface 8 relays for switching application in your project. Input – 12 VDC @ 336 mA Output – eight SPDT relay Relay specification – 5 A @ 230 VAC Trigger level – 2 ~ 5 VDC Berg pins for connecting power and trigger voltage […]
An Improved Infrared Receiver with Status LED
https://www.electronics-lab.com/project/an-improved-infrared-receiver-with-status-led/
This is the latest version of the Improved Infrared Receiver with Status LED which can control any desktop PC with an ordinary remote control. The project comes along with a small PCB in order to save space. It connects to the serial port as stated in the schematic and uses the freeware Girder […]
Infrared Receiver with status led
https://www.electronics-lab.com/project/improved-infrared-receiver-with-status-led/
This is a general purpose serial port infrared receiver. With the help of appropriate software (see below) you can control different functions of your pc from a distance. For example you can control your home cinema settings (volume, play, pause, stop etc), your winamp etc. It<align=”center”> uses for receiver TSOP 1738 (38 KHz) but […]
LCD2LPT with LIRC
https://www.electronics-lab.com/project/lcd2lpt-with-lirc/
The “LCD2LPT with Lirc“ circuit is the compilation of two circuits found on the net on a single board. The first is LCD to LPT interface and the second an IR remote control interface using http://www.lirc.org program. Schematic The main circuit for LCD connection to LPT was modified adding a backlight and contrast control […]
The 8Way Relay Board
https://www.electronics-lab.com/project/the-8way-relay-board/
This board is designed specifically to control the 5-motor Robot Arm sold by Baycom Technologies. It has no input facilities, but it is less expensive than combining the I/O Board with the Relay sub-Board. If you need lots of relays and no input, this is the way to go. Parts List 1 x PCB […]
1 to 100 Seconds Timer
https://www.electronics-lab.com/project/1-to-100-seconds-timer/
This project is a 1 to 100 Seconds Timer based on 555 IC Description This project is a timer project and build around popular 555 Timer IC, It can be used for all application required a delay of up to 100 Seconds. Onboard board preset to adjust the required timer duration in range of […]
Long Duration Timer
https://www.electronics-lab.com/project/long-duration-timer/
This project is a long duration timer based on 555 timer IC. Description This timer project can be used to switch ON/OFF any device after a set time, this circuit can be used in lots of application like switched ON/OFF Radio, TV, Fan, Pump, kitchen timer, the circuit describe here its unique in its own. […]
Pulse generator
https://www.electronics-lab.com/project/pulse-generator/
Description Pulse Generator project will generate a frequency in up to 180 KHz which can form a good test gear project. This project is based on the classic 555 timer IC. Specifications Input : 5-12 VDC Max @ 40 mA Provides Square Waves Range : Jumper selectable and preset tunable range of 1 Hz to […]
230V Blinking LED
https://www.electronics-lab.com/project/230v-blinking-led/
Attention: This Circuit is using 230V that is lethal. Please take appropriate precautions !! Introduction I needed a pulsating light for a certain signaling. Voltage was 230V. So I decided to make a simple circuit, consisted of a LED diode, two capacitors, two resistors, a diac and a diode. Description Activity of the circuit […]