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Super Flux RGB LED Controller

In this project it was used the "Piranha Super-flux RGB" Led of common anode, and the PIC18F25K20, in order to generate combinations of colors. It has two function modes, automatic that generate the color sequence that is stored in the uC memory more


Dot matrix LED running display

The device comprises two parts: LED control board and LED display board. The two PCBs are designed to fit together one behind the other using two sets of dual row connectors and 4 spacers. more


Voltmeter + Ammeter LCD panel

 This multimeter was designed to measure output voltage and current in a PSU, where the current sense shunt resistor is connected in series with load at the negative voltage rail. It needs only one supply voltage that can be acquired from main PSU. more


iButton electronic lock

 In this project we will use iButton as a key to an electronic lock. This electronic lock can use many different kinds of iButtons and can store up to 9 different keys. more


TransistorType & Polarity Identifier

TraId is a simple transistor tester and pinout identifier. It is able to test bipolar transistors as well as N-mosfet and P-mosfet. more


DigiPot - Rotary Encoder Potentiometer

DigiPot is a digital potentiometer using a rotary encoder as input along with a 7 segment display that show the current pot value. more


MCU Controlled Spot Welder

This project is a controller for a dual pulse spot welder that has some nice features that are controlled using a LCD interface. more


PIC16F84A Development Board

This is a new design of a tutorial board based on the popular PIC16F84A microcontroller. It features eight single leds, a 7-segment display, an LCD display and five push buttons.more


MAX2606 - Hands-Free Car Kit

This project is car hands free that retransmits the audio signal from a cell phone to the FM broadcast band. By placing the cell phone's speaker near the microphone...more

 

 

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April 16, 2014

Fresh offer of Wago terminal blocks with a clamp TRMS multimeter

Small, light health patch with enhanced accuracy

IBM Adds Photonics to Silicon with III-V Nanowires

DiY: most tiny MP3 player with ATmega8 VS1011a and Nokia6100 Display

EEVblog #603 – Gas Sensor Teardown – Dräger Multiwarn II

Logic Pirate 8 channel, 256K sample, 60MSPS logic analyzer

UPDATE: miniLOG – Precision Standalone Voltage Logger

April 15, 2014

Electric imp automatic door lock

Datalogger in an Altoids can

Arduino Smoke ‘Detector’ using MQ-7 sensor

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 .: miniLOG - Precision Standalone Voltage Logger
 

 

 

miniLOG is a precise standalone voltage logger that save the data on a SD card. It has 4 basic analog channels. One 12 bit for voltage measurements, two 10bits for voltage measurements and one 10 bit for current measurements. more

 

 .: LM2585 12V to 24V @ 1A Step-up switching regulator

 

 

 

This is a DC-DC step-up converter based on LM2585-ADJ regulator manufactured by Texas Instruments. This IC was choosen for it's simplicity of use, requiring minimal external components and for it's ability to control the output voltage by defining the feedback resistors more


 .: Motorcycle Universal Gear Indicator

 

 

 

This is a new design for a universal gear indicator that can be fitted to any motorcycle as an aftermarket accessory. Its main advantage is that its operation depends entirely on the gear shift lever movement, instead of connecting to speedometer ... more


 .: Open Source 3.2" TFT Smart Display

 

 

 

This project is an open source 3.2" Smart TFT display board. The board is based on a PIC32 and a 3.2' TFT with touchscreen (ILI9320 controller, using 16bits PMP). The software has two main parts. One that produces the 2D functions and a GUI with various widgets (buttons, check boxes, sliders etc) more


 .: DDS Function Generator

 

 

 

This project is a new implementation of the AVR DDS signal generator v2.0 found on  scienceprog.com. Itis a firmware based DDS signal generator and has two outputs - one for DDS signal and another for high speed [1..8MHz] square signal. Offset and amplitude can be regulated by two potentiometers. more


 .: USB Single Cell LiPoly Charger

Lithium Polymer Batteries are a very common source of power today. Many electronics gadgets have one inside, and they have some reasonable features. I've bought great batteries, with different sizes and capacities for my electronics projects. more


 .: Serial 4-digit seven segment LED display
 

 

 

This project is a 7 segment LED display module that can be driven using SPI protocol, so it needs only 3 pins of your mcu to drive 4 x LED displays. It's based on MAX7219 LED display driver. more

 

 .: DC Motor Driver using L293D
 

 

 

TThis project is a DC motor driver, suitable for motors that of low or medium power. It allows controlling up to 6 motors or 3 motors if you want to control the rotation of the motors. The controller is build around the IC L293D that can provide 600mA per channel, and a H-Bridge designed with transistors NPN and PNP transistors, than can provide 1.15A per channel. more


 .: FM Transmitter using MAX4467 & MAX2606
 

 

 

Here is a very simple, inexpensive and interesting project which provides lot of fun to a home experimenter or hobbyist. This simple transmitter can transmit speech over a short range. It can be used as a simple cordless microphone. The circuit uses two integrated circuits from Maxim. more


 .: 24x6 LED Matrix Control Circuit
 

 

 

This is a 24x6 LED matrix control board based onn Syst3mX schematics on Instructables. The board is connected on the LED matrix board and an external MCU or Arduino is required to produce the control signals that are feed on GP8.. more

 

 .: 0-30V Power Supply with Current Control 2mA-3A
 

 

 

Build a high quality power supply with a continuously variable stabilized output adjustable at any value between 0 and 30VDC. The circuit incorporates an electronic output current limiter that effectively controls the output current from a few milliamperes (2 mA) to the maximum output of 3A that the circuit can deliver. more


 .: Simple SMD LED tester
 

 

 

This project is a simple LED tester and LED polarity checker. It can be used to check 1206, 0805, 0603 and 5mm LEDs. All parts are readily available and they are very cheap. more

 

 .: Low Frequency Spectrum Analyzer for Automotive Suspension Analysis
 

 

 

This project is an accelerometer data acquisition system for automotive suspension analysis. In other words it's a low frequency spectrum analyzer based on Lanchpad TIVA Series from Texas Semiconductors. more


 .: AMP - Arachnoid Mobile Platform
 

 

 

The Arachnoid Mobile Platform is an open source robotics development platform used to make small autonomous moving robots. It can be either configured as a four-legged robot, or as a two wheeled robot. more


 .: Temperature Controlled PC FAN
 

 

 

This project is a temprerature controller for a PC FAN. It regulates the speed of the FAN attached to it according to measured temperature. Temperature is sensed using a simple NTC thermistor. more


 .: FM VCO Transmitter
 

 

 

This is a VCO FM Transmitter with range 500m - 4km depending on antenna used. Power supply is 12Vdc@100mA, RF power is 400mW, output impedance 50-75ohm, Frequency range: 87,5-108 MHz, modulation: wideband FM. more

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 .:  News  :.

 22/03/2014 - New project added
 08/03/2014 -
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 07/03/2014 -
New project added

 







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 .:  Last Added Projects  :.
new!

HV Nixie DC-DC Switching Power Supply
Variable Power Supply with LM7812
Temperature Controlled PC FAN
Valentine LED Chaser
AMP - Arachnoid Mobile Platform
MCU Controlled Spot Welder

miniLOG - Precision Voltage Logger
Simple SMD LED tester
Serial 4-digit seven segment LED display
MAX2606 - Hands-Free Car Kit
Low Frequency Spectrum Analyzer
PicoBuck - RGB LED Driver
USB to RS485 Adapter
TransistorType & Polarity Identifier
DigiPot - Rotary Encoder Potentiometer
FM VCO Transmitter
BO.Duino - ATmega328 Arduino board
Automatic School Bell
24x6 LED Matrix Control Circuit
DC Motor Driver using L293D
FM Transmitter MAX4467 & MAX2606
Open Source 3.2" TFT Smart Display
LM2585 12V to 24V @ 1A Step-up
400VA AC Light Dimmer
IR Remote Control Jammer
Power Supply Short Circuit Protection
Infrared / Light Controled Switch
1.2 - 36V / 5A Power Supply
Analog Temperature Controller
XBMC USB Controller
XBee Wireless Tilt Mouse Application
Super Flux RGB LED Controller
Programmable Home Security Alarm
Digital clock thermometer & hygro
MultiKey - One Wire Keypad
PIC16F688 Digital Voltmeter
Halloween Scare 12F683 and ISD2532
PIR Motion Sensor
DDS Function Generator
MCS08DZ60 Evaluation Board
Microcontroller Clapper Switch
Arduino Solar Day Night Controller
Hand Steadiness Tester
Bomb Game
LED UV exposure box
A Very Simple Power Failure Light
OSCCAL Value Finder
Motorized Curtain with Remote
MSF Radio Time Clock
Dot matrix LED running display
USB Low Pin Kit
3-Wire Serial LCD with Shift Register
Digital Impulse Relay
Flood Detector
Digital Room Thermometer
Motion Activated Led Dice
Infrared Toggle Switch for Appliances
Relay Sequencer Board
PIC16F84A Gas Detector using GH-312
USB Single Cell LiPoly Charger
LED effects
Digital Multiple Voltage Power Supply
Learning Board for PIC12F683
PIC PWM Fan controller
Single Chip Temperature Data Logger
Motorcycle Universal Gear Indicator
Church bell Controller
Toggle ON / OFF switch
Mini variable power supply
Ultra High Sensitive Probe
Charger for mobile phones
Li-Ion Charger
Super Bright Led Flasher
Lead Acid Battery Charger #2
Lead Acid Battery Charger #1

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 .: High Power LED mood Lamp
 

In this page we will introduce a great project designed by Toon Beerten. His project named "DIY Led Mood Lamp" can become a very interesting add-on for your room that's absolutely sure it will impress everyone. As you can see on the photos, we talk about a color fading lamp, that looks amazing! more


 .: Timer for PCB Exposure Box
 

Yet another great project by Vassilis Papanikolaou. This darkroom timer is an improved version of the Darkroom timer originally created by Stan Ockers (1999). It's an ideal timer for UV exposure boxes and such a devices. Many new features are added. Check it know! more


 .: 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. more


 .: USB to RS485 Adapter
 

While developing the Luma RS485-networked LED driver we discovered a need for a small and inexpensive USB to RS485 adapter. We designed an adapter with a FTDI basic UART chip (FT230XS) and an inexpensive TI differential receiver (SN75176). Our small selection of parts brings the cost down to just over $5 for one adapter. more


 .: 89Sxx Development Board
 

This is a single side development board with In System Programmable Flash based microcontroller, 89Sxx series more


 .: HV Nixie DC-DC Power Supply
 

Nixie tubes need about ~180Vdc to light up and thus on most devices a DC-DC converter is needed. We designed here a simple DC-DC switching regulator capable of powering most of Nixie tubes. more

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[Electronics chit chat] doubt in active device by Hero999 April 14, 2014, 06:22:21 PM
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