|
|
|
Lattice Semi Gds Chip Programmer Software - Generic Digital
Switches are in-circuit programmable devices made by Lattice Semiconductor
that allow pin to pin routing, buffering, and inversion. Perfect for making
last minute circuit changes…. (added 11/05) |
|
Layout Guidelines for the FAN5240, PWM Controller for AMD Mobile Athlon™ &
Mobile Duron™ Processors/ AB-27 - Fairchild Application Notes /
(app note added 6/06) |
|
LC Meter Based on the AVR MicroController - Calculates and
displays L and C from oscillation frequency using reference components.
This instrument requires two precision components: A precision capacitor and
a precision inductor. You only need to start with one precision
component,.... |
|
LCD Terminal - The LCD Terminal just like a normal terminal, it
can connect to any host via RS-232 serial cable. A PC keyboard must connect
to it as the input device and what ever you type will send to host via
RS-232 and display on a 40x4 LCD. Data receive from host can also display on
the LCD unit. You can use this device as any Unix/Linux machine's console.
….... |
|
|
|
LCD Thermometer - 2nd version of Thermistor Thermometer. ….(design
added 06/09) |
|
LCD to PIC16C54 Schematic - (electronic circuit added 7/03) |
|
LED 7 segment Count Down Alarm - PIC16F84.... |
|
LED driver provides oscillator for microcontroller - 16-Sep-04 Issue of EDN
The major building blocks for a white-LED driver are an oscillator, a charge pump, and
a regulated current source. National Semiconductor (www.national.com ] produces a
device that contains all these building blocks in the highly integrated LM2791/2 IC.
You usually use white-LED drivers in tandem with cellular baseband controllers or
microcontrollers....[Design Idea by Wallace Ly, National Semiconductor, Santa Clara,
CA] |
|
|
[_OLD-ads-dont_upload/OLD I-ADS from web/ad-djandassoc.htm] |
|
|
LED driver provides software controlled intensity - 30-Sep-04 Issue of EDN
Recent advances in operating efficiency have expanded the use of LEDs from one of mere
indicators to becoming driving forces in electronic lighting. Increased reliability
and ruggedness (versus other lighting technologies] gives the LED a bright future
indeed. Vendors in recent years have introduced many ICs for driving LEDs, but the
problem of driving serial chains of LEDs has received less at....[Design Idea by Neda
Shahi and Bjorn Starmark, Maxim Integrated Products, Sunnyvale, CA] |
|
LED Flasher - Flasher uses LM3909 IC…. [Tony van Roon's circuit] |
|
LED Flasher 2 - PIC16F84 8-LED Flasher with three selectable patterns.... |
|
LED Strobe - This circuit drives a high brightness LED as a strobe.
The BD136 (I had one spare) transistor can be used to drive an LED from a higher
voltage source than the PIC operates from if required…. (added 11/05)
|
|
Light Controller - Scroll down to find link to circuit drawing and circuit
explanation….(design added 06/09) |
|
Li-Ion Charger - Lithium Ion batteries pack a lot of power by weight
compared to other types. There are 2 things that need to be handled differently
than nicad on NiMH…. [Luhan Monat - Mesa Arizona] |
|
LIN Protocol Implementation using PICmicro® MCUs - Microchip Application
Note Published 4-Feb-00 (app note added 2/06) |
|
LIN Slave Node on a PIC16c433 - Microchip Application Note Published
8-Nov-02 (app note added 2/06) |
|
Line Follower ROBOT Controlled by 2051 - Award Winner from VINGPEAW
Competition 2543 by my student, again, Plermjai Inchuay. He provides this page
describing his robot platform, control circuit by 2051 chip, black tape sensor, and
control program in C. See MPEG file how the robot tracks the course during
competition. ….(electronic schematic added 06/09) |
|
Line level Signal to microphone input adapter - Sometimes there is need to
convert line level signals to such signal that it can be connected to microphone
input. Because the line level signals are typically in range of 0.5..2V and the
microphone signals are in millivolt range, quite much attenuation is needed to match
the signal levels. This means that typically you will need 40-50 dB of
attenuation. (added 2/06) |
|
Litter Box - Not every new use of technology requires a microcontroller.
This one uses a 12 volt computer fan from CompUSA, a snap close food box from Walmart,
some PVC pipe from Home Depot, and a large plastic storage container from Big Lots.
(electronic design / schematic added 2/06) [Luhan Monat - Mesa Arizona] |
|
LM35 termometer - an adjustment termometer by LM35 this file simulated by
Proteus 7.2 and micro program is on Bascom....[rajbai.somee.com] |
|
Low cost Atmel in-system Programmer - (electronic circuit added 4/05)
|
|
Low Cost Dynamic VID Power Supply for Pentium® III Processors - Design
Solutions 7 Design Notes (Linear Technology) (app note added 1/06)
|
|
Low Cost USB MicroController Programmer the Building of the Pickit™ 1 Flash Starter
Kit - Microchip Application Note Published 7-Jul-03 (app note added
2/06) |
|
Low Cost Very High IP3 Low Noise Amplifiers Cover 250MHz to 2300MHz -
Application Note MiniCircuits.com (app note added 04/05/06) |
|
Low power timer - Low power timer. It can operate with a CR2032 litium
battely. (added 10/05) |
|
Low speed implementation for LightScribe/ AN-4144 - Fairchild Application
Notes / (app note added 6/06) |
|
Low-cost AVR Programmer - To program some AVR microcontroller unit (MCU) you
will need an AVR programmer. The better way to do that, is to buy some development kit
like STK-500. This kit have the advantage to give you serial port, LCD
connector, SRAM socket, 8 switches, 8 LEDs, connectors for all of the ports of MCU and
more, to one board. I suggest to beginners, to start working with STK 500 or some else
development system, it will help them very much. For the people that are want to
program only one piece of AVR, to make some circuit from this site and they don't want
to spend money for any development kit, the solution is this ultra low-cost AVR
programmer. ….(electronic schematic added 11/08) |
|
Low-Power Design using PICmicro MicroControllers - Microchip Application
Note Published 7-Oct-05 (app note added 2/06) |
|
Low-Voltage Reset operates BeLow-2.7V - 03/26/98 EDN-Design Ideas....New
personal digital assistants, pagers, and other battery-powered systems operate at or
below 2.7V, but power-on resets with thresholds below 2.6V are not commonly available.
You can resolve this problem using a circuit that combines a 1.2V reference and a
micropower regulator (Figure 1a)....[Design Idea by Bob Kelly, Maxim Integrated
Products, Sunnyvale, CA] |
|
|
