For people like me who are not very interested in pic, atmel programming, these are ideal programs that allow you to test HD44780 or KS0108 chip-set LCD screens via the LPT port of the computer without any microcontroller. There are a few resistors and diodes in the test circuits.
Program images;
In the 128×64 KS0108 glcd test program, text, images (bmp) can be sent, and the information can be saved as a C language header file.
LCD Tester (Free Software)
The program for easier use, control and learning of LCD graphic and alphanumeric modules, (HD44780)… The LCD is connected to the parallel port of the PC. The connection diagram is a part of the program.
version: 1.7
– Added the option to create characters for graphic LCDs based on PCD8455/LPH7779 controllers (Nokia 3310, 3330…).
– With the addition of a few passive components, it is also possible to power the LCD HD44780 directly from the LPT port.
GLCD Tester (Free Software)
The program allows testing Graphic LCD modules based on KS0108 controllers using a PC and LPT port. In addition, the application includes the conversion of bitmap images to C or Pascal source code, which makes the integration of images into projects with the microcontroller much easier.
Source: epraktikum.iz.rs
Password: 320volt.com
Published: 2011/04/12 Tags: electronics software tools
800ma Power Supply Circuit LD1117
LM317 LD1117 series, 78xx regulator fixed output voltage of the regulator IC in a similar or models have adjustable LD1117 production of SGS Thomson LM1117 national production also produces in different companies, but I do not remember the exact names.
SOT-223 SMD type sheath used in practice LD1117 power 9v 800mA from 1.25V voltage adjustment can be made.