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Serial LCD Controller - Serial LCD/VFD Controller is a HD44870 based LCD/VFD controller via RS-232. The control command is compatible with Matrix-Orbital's LCD module. So, you can use any MO friendly software to control this baby such as LCDC.
Serial LCD for microControllers using only 3 pins - Connect an LCD to your microcontroller to make it easy to develop and debug your application. You can choose which PIC I/O pins you want to use for the interface, and any HD44780 compatible LCD can be controlled. __ Designed by Peter Jakab
Serial LCD Module - In most electronic systems, it is necessary to provide information in the visual form for a convenient user interface. The most commonly used displays in electronic systems are LED, LCD and...__ Electronics Projects for You
Series Connected Voltage Boost for a Battery Operated LED Lantern - A circuit that goes in series with a white LED and a 1.5 volt cell to make > 3 Volts to drive a white LED __ Designed by Dick Cappels
Servo Pulse to PWM - converter connects an H-Bridge to radio control receivers or robotic circuits __ Designed by Bob Blick
Seven-Segment LCD Uses Two-Wire Interface - 09/04/03 EDN-Design Ideas You can connect seven-segment LCDs using only a two-wire interface (Figure 1) . The two-wire interface may be at the field-effect, direct-drive LCD or at a serial interface (such as I2C) that uses an eight-pin microcontroller. The design in Figure 1 uses an Atmel (www. atmel. com) ATtiny12 microcontroller, IC1. VCC can range from 2.7 to 5.5V. Each digit receives drive from an 8-bit 74HC164 shift register, which provIdeas seven outputs for each of the segments and one output for a decimal point or a colon Design by Hans Krobath
Shift Indicator & Rev Limiters for Cars - If you drive your car for optimum performance, you will want this Shift Light Indicator to indicate just when to change gears. As a bonus, it incorporates a Rev Limiter which throttles back the fuel injectors.__ SiliconChip
Signal Processor Adds LED Display - 6-Jun-96 EDN-Design Ideas Designers using the Texas Instruments TSS400, a versatile 4-bit sensor-signal processor, may find the circuit in Figure 1 useful as a replacement for, or an adjunct to, the IC's built-in display capabilities Design by N Thomas Christman, Zablocki VA Hospital, Milwaukee, WI
Signboard - On this page, I will introduce the electronic signboard with PIC16F84A. The message is displayed to flow on the left from the right.128 LEDs are used for this board __ Designed by Seiichi Inoue
Signboard 2 - Iwill introduce the making of the electronic signboard which used PIC16F84A on thses pages.112 LEDs (7 x 16) are used for the display of the message.50 LEDs are used as the design of the edge. Latch registers by CPLD are used for the display of the LEDs. __ Designed by Seiichi Inoue
Simple Circuit active-matrix-LCD bias supply operates from battery input - 02/03/00 EDN-Design Ideas Many active-matrix-LCD applications need multiple voltages for thin-film-transistor (TFT]bias. Typically, three voltages are necessary5V forcolumn driver; a positive voltage, such as 10V; and a negative voltage, such -5V, for Design by Michael Shrivathson, National Semiconductor Corp, Santa Clara, CA
Simple Circuit LCD interface takes two wires - EDN-Design Ideas March 26, 1998 [ NOTE
: File has multiple design, scroll for this one.] Alphanumeric LCD modules can provide an attractive display for a project, but their parallel I/O lines require a large number of outputs from a µC. For example, a direct LCD interface would consume all of the I/O pins of a small µC, such as the eight-pin PIC12C508 from Microchip Technology (Chandler, AZ) . Design by Ed Maste, Jem Designs, Pickering, ON, Canad
Simple Circuit Tester Check LCDs - 10/03/02 EDN-Design Ideas RF oscillator uses current-feedback op ampManufacturers of electronic equipment use LCDs for calculators, watches, mini-videogames, and pagers, for example. In comparison with LED-based displays, which consume power on the order of tens of milliwatts, an LCD consumes only a few microwatts. Design by D Prabakaran, NL Polytechnic College, Tamil Nadu, India
Simple, Low-Cost, 1-Kv Driver - 05/13/04 EDN-Design Ideas High-voltage drivers have recently received much attention, because they play an important role in driving piezoelectric and electro-optical components, for example. Figure 1 shows a simple, low-cost, 1-kV driver. The circuit uses Design by Tai-Shan Liao and Prasit Champa, National Science Council, Hsinchu, Taiwan
Single Digit Scoreboard - a compact general purpose display __ Contact: P. Townshend EduTek Ltd
Single IC Biases LCD & GaAsFET Amplifier - 04/09/98 EDN-Design Ideas - (File ,contains several circuits, scroll to this one) Operating from a lithium-ion cell or a four-cell NiCd battery, the circuit in Figure 1 provIdeas 6V bias for LCDs and a separate, quiet negative bias for a GaAsFET power amplifier. This bias combination exists in cell phones Design by John Wettroth, Maxim Integrated Products, Apex, NC
Single Supply Video Line Driver (AC Coupled) - When AC-coupling video, the waveform Dynamics change with respect to the bias point of the amplifi er according to the scene brightness of the video stream. In the worst case, 1VP-P video (composite or Luminance + Sync in Y/C or YPBPR format) can exhibit a varying DC content of 0.56V, with the dynamic requirement being __ Linear Technology/Analog Devices App Note, Mar 25th 2010
Small mezzanine-board format offers More I/O - 04/01/99 EDN-Design Ideas NOTE
: File contains many designs. Scroll to this one. You can now get both modules and carrier boards for the PC-MIP mezzanine format. MEN and SBS-Greenspring (now called SBS Technologies] developed the format as a smaller alternative to PMC modules and lets you put six PCI-based modules on any CompactPCI, PCI, or VME motherboards. Motorola sponsors the format, and about 20 companies now support it. PC-MIP uses an unaltered PCI bus Page includes
several designs Design by Graham Prophet
Smart Mixture Display for Your Car - A 10-LED display indicates the fuel mixture, while a small buzzer sounds if the mixtures go dangerously lean.__ SiliconChip
Song Number Display - Here’s a circuit to display the song number in an audio system for quick reference to songs. It also serves the purpose of an extra visual indicator in modern audio systems.When...__ Electronics Projects for You
SPI Interface Big 7-Seg LED - Big display for general purpose usage, the interfacing is SPI serial interface, requires only 3-wires. Multiple digit can easily be made. DXF files single side PCB. __ Designed by Wichit Sirichote
Super-Simple Circuit Coax to Twisted-PaIR Adapter - Launching a baseband camera signal into twisted pair is a relatively simple matter of building a differential driver such as shown in this circuit. In this realization one LT6652 is used to create a gain of +1 and another is used to make a gain of –1. Each output is series terminated in half the line impedance to provide__ Linear Technology/Analog Devices App Note, Mar 25th 2010
S-Video Splitter (AC Coupled) - This figure shows an LT6551 quad amplifier driving two sets of S-video (Y/C format) output cables from a single Y/C source. Internal gain-setting resistors within the LT6551 reduce part-count. __ Linear Technology/Analog Devices App Note, Mar 25th 2010
Switch Configures Bare-Bones, Two-Digit Display - 12/21/95 EDN-Design Ideas A project that includes a stage with three selectable gains (0.1, 1.0, and 10) requires that the rotary-gain switch also function to illuminate one of three LEDs. These panel-mounted LEDs serve to indicate the gain in use. This arrangement requires two switch sections—one for selecting the op amp’s gain-set resistor and one to light the corresponding indicator LED. The circuit in Figure 1 requires only one more switch section to provide a true, two-digit, seven-section numeric LED display. The circuit needs no active driver-decoder circuitry Design by Joe Wonoski, Yale University Medical School New Haven, CT
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