USB LCD/VFD Controller is a HD44870 based LCD/VFD controller via USB interface. 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.The firmware are based on David Potter’s Serial LCD/VFD Display, but I almost rewrite the entire code.
I build this controller based on a PIC16F873 MCU. The main feature are:
Use a FTDI FT232BM chip as the USB bus controller.
The whole device are work in Bus-Power mode, and no external power are needed.
Supports industry-standard LCD interface (Hitachi HD44780 or “14/16 pin” interface)
Configured for 16×2,20×2,20×4,40×2 LCD/VFD module.
Hareware 19200-baud RS-232 input, 96 bytes of receive buffer. Flow control are not supported Standard software commands such as clear screen, cursor move, etc.
Supports custom characters,The LCD/VFD can configured via commands
The Splash screen can changed to whatever you want
2 GPO,4×4 Keypad,The LCD contrast could be configured by software
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.The firmware are based on David Potter’s Serial LCD/VFD Display, but I almost rewrite the entire code.
I build this controller based on a PIC16F628 MCU. The main feature are:
Supports industry-standard LCD interface (Hitachi HD44780 or “14/16 pin” interface)
Configured for 16×2,20×2,20×4,40×2 LCD/VFD module.
Hareware 19200-baud RS-232 input, 96 bytes of receive buffer. Flow control are not supported Standard software commands such as clear screen, cursor move, etc.
Supports custom characters,The LCD/VFD can configured via RS232
The Splash screen can changed to whatever you want,2 GPO
Source: hyper.sunjapan.com.cn LCD-VFD Control Circuits PIC16F873 PIC16F628 USB RS232 alternative link:
Password: 320volt.com
Published: 2008/03/17 Tags: microchip projects, microcontroller projects, pic assembly example, pic16f628 projects
Dijital VGA Switch MAX465 Circuit
MAX465, MAXIM. In order to produce the first component video switch, once considered MAX465 Unfortunately, in the electronic market is not found, MAXIM made on the sample application. EL4332,MAX465,. After more than three weeks, were a surprise. During this period, however, I have chosen the EL4332 component video switch as the core, but has received only a MAX465, and so they put it aside temporarily. MAX465,MAX465 VGA. When I completed a component video switch, Looking back at how to use this piece of MAX465, think of this, I can make a MAX465 VGA-sharing. PC,VGA SwitchLCD. I have two PC at home, through a mechanical VGA Switch shared an LCD monitors.
Analog VGA Switch test