Posted on Nov 26, 2012

The ROMs or PROMs must have the correct code for converting the data from the NE5037 -used as address for the ROMs or PROMs-to the appropriate segment driver codes. The displayed amount could easily be converted to degrees Fahrenheit, °F, by the controller of (0-63 °temperature sensor) or through the (P) ROMs. When doing this, a third (hundreds) digit(P)ROM and display will be needed for displaying temperatures above 99°F.

Click here to download the full size of the above Circuit.

An expensive~clock can be made from NAND gates or inverters as shown.

Leave Comment

characters left:

New Circuits



Popular Circuits

Stereo channel controller
Proximity Alarm I Circuit
The simplest digital LCD voltmeter with AVR
RMS Reading Voltmeter
Simple Square Wave Generator with 7400
Simple Zener Diode Tester
Battery Backups in Consumer Electronics
Simple voltage to frequency converter
Adaptive zero voltage switching electronic ballasts