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7-Segment Display - This experiment is more of an introduction to the 4511
decoder/display driver IC than it is a lesson in how to "build up" a digital function
from lower-level components. Since 7-segment displays are very common components of
digital devices, it is good to be familiar with the "driving" circuits behind them,
and the 4511 is a good example of a typical driver IC.... (circuit add 6/07) |
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8x8 Animated LED Signboard - The firmware supplied in current sourcecode archive
is VERY BASIC. I do intend to draw more patterns. However, a vast workload coupled
with possible emigration has put finished firmware on hold. Please do go ahead and
build this circuit though supplied firmware is fully functional. You can have hours
of fun designing your own patterns and effects! Uses PIC16F84 (project added 10/06) |
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9 Second LED Relay Timer - This circuit provides a visual 9 second delay using a 7
segment digital readout LED. When the switch is closed, the CD4010 up/down counter is
preset to 9 and the 555 timer is disabled with the output held high. When the switch
is opened,....(circuit / schematic design added 6/06) |
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A Novel Process for Vacuum Fluorescent VF Display Drivers - National
Semiconductor Application Note (app note added 2/06) |
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Air display - A Noisemaker without noise. A simple rotating display. Just spin
and enjoy. While the "Air display" is rotating, it writes the message on the air.
Because the "persistence of the vision", you will be able to read the message.
Circuit, see JP6293E.gif. Download the HEX file - Program the PIC with JP6293E.hex.
Algorithm - Build your own Air Display using code.txt....(electronic design added
06/07/08) |
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AN-1127: LVDS Display Interface - National Semiconductor Application Note (app
note added 2/06) |
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AN-1237: Rsds™ Flat Panel Display Design Guidelines Part 2 - National
Semiconductor Application Note (app note added 2/06) |
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AN-378: A Novel Process for Vacuum Fluorescent VF Display Drivers - National
Semiconductor Application Note (app note added 2/06) |
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AN-990: Radiated Emissions and CRT Displays - National Semiconductor Application
Note (app note added 2/06) |
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Animated LED Signboard PIC16C84 - (electronic circuit added 4/05) |
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Big 7-Segment LED Display Board with SPI Interface - The circuit uses a
serial-in-parallel out shift register, 74HC595 for receiving serial data from
uController board. See example of U5 in schematic, SER is for data input, SRCLK is
shift clock and RCLK is Latch clock. Each data bit is shifted into register on rising
edge of shift clock. When all data bits are shifted into 8-bit register, rising
edge of RCLK will clock data to be latched at each output bit, i.e. QA QH.... (added
4/05) |
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Call Sign Annunciator - (electronic circuit added 4/05) |
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Circuit Thermally Compensates LCD Contrast Bias - 03/16/95 EDN-Design Ideas /
(added 03/03/03) |
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Connecting AT90S2313 with LCD Display 2x16 Char and 4x4 Keypad - (electronic
circuit added 4/05) |
