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The WB0RIO 28 Mhz FSCW Beacon using an Arduino - This circuit uses a 6U8A triode/pentode tube as the heart of a code practice oscillator (CPO) . It is simple enough to be built by a beginner and would be a good introductory project for those who want to experiment with vacuum tubes. The circuit produces a hi-fi sinusoidal output with a wave-shaped envelope for minimal key clicks. These features reduce operator fatigue and make the CPO easy to listen to for extended periods. For contrast, see my solid-state Smooth Tone Clickless CW Sidetone Generator project. __ Designed by G. Forrest Cook
The Witness camera. Part 1 - Part 2 Part 3 Video surveillance systems have rapidly grown from being a specialized equipment for high-risk areas (like banks and airports) , to the point of being standard facilities of most places open to the public. Nowadays, no shopping centre,
The Witness camera. Part 2 - The most peculiar aspect of this design is that the firmware is written in BASIC. I’m a strong advocate of using C for embedded systems, and I use routinely the excellent GCC compiler for AVR development on PC and Linux platforms. But at the
The Witness camera. Part 3 - Part 1 Part 2 I started the development with the card and the camera connected to and Atmel STK300 board and a Mega128 chip. Developing on a larger chip facilitates development, as you have extra pins, flash and RAM to use for debug. Once I gained
The World's Simplest Open Source DIY MP3 player Sakura - For around $30 in parts and a good amount of patience, you can have a completely open source and hackable mp3 player ready to go. It can be modified to accept serial commands, be embedded in an art project, used as the voice of your next smart __ Designed by Radio LocMan
Theater Home Project - PIC Project This unit is designed to interface: TV sound, videotape sound, and 5.1 dvd sound to a 4 channel home theater system. __ Designed by Luhan Monat - Mesa Arizona
Thermistor Thermometer - Simple thermometer made with NTC thermistor. __ Designed by Wichit Sirichote
Thermometer-Thermostat - This is a simple thermostat that i designed to use with my central heating system. When is not in use acts like a thermometer. The prototype uses the AT90S2313 but it’s obsolete now, so i changed it with the pin to pin compatible ATtiny2313 (the photo shows my first prototype) . __ AVR Projects Dim
Thermostat Uses Capacitive-Sensing Liquid-Metal Thermometer - Capacitive sensing is a versatile technique that can solve a difficult sensing problem in a surprisingly simple manner. For example, it can be used to turn a liquid-metal thermometer into the sensing element of a thermostat. Such __ Designed by Elio Mazzocca
Three Do-It-Yourself PIC Programmer Kits - These low-cost kits are easy to build, come with sample programs and are just the shot for getting started.__ SiliconChip
Time Switch V1.0 - New weekly scheduler made by 68HC908QY4 with kaypad and 16x1 line LCD! (not recommended) __ Designed by Wichit Sirichote
Time-Controlled Switch using PIC16f72 - APRIL 2012: A time-controlled switch is an automatic timer switch that turns an appliance ‘on’ for the desired time duration. After the preset time duration, the timer automatically switches off, disconnecting...__ Electronics Projects for You
Tiny 2313 Project Development Board - This is my first time using the AVR. I like to learn using the ATTiny 2313, because it is faster than MCS-51, cheap and the circuit is very simple. The chip has only 20 pins. I was interested because I want to build a simple line follower robot controlled by this MCU. __ Designed by Tahan Prahara
Tiny Eprom Simulator - Program development for stand-alone micro processor systems can be done in many different ways. This project is intended for processors with external program memory. Modern processors with internal Flash memory will not benefit from this project and must be programmed in a totally different way.
Tiny Header Boards - These are two tiny boards that make your prototyping on a breadboard much easier. Just plug the header board into the breadboard and attach your ISP programmer and you are ready to go. __ Designed by Alexander Weber
Tiny Microcontroller Hosts Dual DC/DC-Boost Converters - 05/15/08 EDN-Design Ideas - An Atmel AVR microcontroller can serve as the PWM controller for two DC/DC converters that provide high voltages from a two-cell supply Design by Dhananjay V Gadre, Netaji Subhas Institute of Technology, New Delhi, India
Tiny2313 Proto Board - This Tiny2313 Proto Board is for all these one-off projects and prototypes. You want it more permanent than on a breadboard but don’t want make a custom PCB for it. The board comes with 10 components only and is really easy to solder. __ Designed by Alexander Weber
Tiny25 Proto Board - This Tiny25 Proto Board is for all these one-off projects and prototypes. You want it more permanent than on a breadboard but don’t want make a custom PCB for it. The board comes with 10 components only and is really easy to solder. __ Designed by Alexander Weber
Tips on using 8pin AVRs - This is an App Note for 8 pin tiny AVR. __ Designed by The Electronic Lives Manufacturing-presented Chan
TMPZ84C015 board - TMPZ84C015 is one of the Toshiba TLCS-Z80 series microcontrollers. This is a TMPZ84C015 board that used Akizuki-denshi AKI-80 board kit. __ Designed by The Electronic Lives Manufacturing-presented Chan
Toner_Transfer_Exp - Document describing my experiences with toner transfer PCB production. __ Designed by © Henry Carl Ott N2RVQ, all rights reserved'
Tony Nixons Pocket Programmer (PIC) - Tony Nixons Pocket Programmer. The Pocket Programmer is a stand alone serial programmer that can program most of the PICmicro®MCU range of microprocessors. (12C6xx, 16Cxxx, 16Fxxx, 18Cxxx) It works from a single 18VDC supply or with 2 X 9 volt batteries. Combine this with 64K of on board EEPROM which can store upto 32 HEX files and you have a truely portable programmer / patcher __ Designed by Seiichi Inoue
Tony Nixons Pocket Programmer PIC - Tony Nixons Pocket Programmer. The Pocket Programmer is a stand alone serial programmer that can program most of the PICmicro®MCU range of microprocessors. (12C6xx, 16Cxxx, 16Fxxx, 18Cxxx) It works from a single 18VDC supply or with 2 X 9 volt batteries. Combine this with 64K of on board EEPROM which can store upto 32 HEX files and you have a truely portable programmer / patcher __ Designed by Seiichi Inoue
Top 20 Arduino Projects To Build In Your Free Time - Arduino has been a revolution ever since it struck the market. Arduino or Genuino (as known in some places) , has been a very lucrative option for students designing their first projects. This increase __ 3/29/2017 - EFY
Touch and/or Remote Controlled Light Dimmer - Old-fashioned light dimmers with knobs are passe! This one dims up or down at a touch or you can use an infared remote control.__ SiliconChip
Touch and/or Remote Controlled Light Dimmer-Part 2 - Completing the construction and building the touchplate and pushbutton dimmer extensions.__ SiliconChip
Touch KeypA - D - This board layout was created using the SOIC version of a PIC16F627A without drawing the usual schematic first. Most of the part values are etched on the Layout. The SIP resistor packs I used are 10k ohm, some experimentation with this value may be useful __ Designed by Luhan Monat-Mesa Arizona
Touch Switch - PIC Project __ Designed by Luhan Monat - Mesa Arizona
Toy Car Hack - This car measures just 5 1/2 inches in length. It was sold as a remote control car for $19.95 at Fry's Electronics here in Phoenix. Powered by 4 AAA batteries, it has a small dc motor and a very interesting steering mechanism. (08/08/08) __ Designed by Luhan Monat-Mesa Arizona
Traffic light controller using an Arduino microcontroller - The Traffic Light Hack is a simple interface for controlling lights inside a traffic light enclosure. No, not a real light out on the street. This one was picked up at a flea market, and it's hanging in my room. __ Designed by Rockwell Schrock
Translate a laW to m law - 05/07/98 EDN-Design Ideas - (NOTE
: contains several ideas, scroll down) Two common methods exist to compand voice for transmission through a PCM channel. In Europe, A law involves converting a 12-bit input signal to an 8-bit encoded output. In the US, m law involves encoding 13 bits to 8 bits. You can use a translator to convert from A law to m law (Figure 1) . The converter is asynchronous and requires only an 8-bit A law input to provide an 8-bit m law output. Design by Rolando Herrero, Instituto Tecnológico de Buenos Aires, Argentina
Triangular wave oscillator - In this page, I introduce the triangular wave oscillator which used the Operational Amplifiers (TL082) . The circuit uses the two OP amplifiers. The OP of the one works as "the Schmitt circuit". The other OP works as "the integration circuit". At the circuit diagram above, IC (1/2) is the Schmitt circuit and IC (2/2) is the integration circuit __ Designed by Seiichi Inoue
TTL to RS232 adapter using 2N3906 / 2N3904 transistors - How to build a simple TTL to RS232 adaptor for your microcontroller projects. You should be able to scrounge all the parts you need or buy them at your local Radio Shack |
