The gEDA project is working on producing a full GPL’d suite of Electronic Design Automation tools. These tools are used for electrical circuit design, schematic capture, simulation, prototyping, and production.
gEDA – Electronic Design Automation
Currently, the gEDA project offers a mature suite of free software applications for electronics design, including schematic capture, attribute management, bill of materials (BOM) generation, netlisting into over 20 netlist formats, analog and digital simulation, and printed circuit board (PCB) layout.
gEDA Project’s Homepage
gschem is the schematic capture program/tool which is part of gEDA. Its sole purpose is to facilitate the graphical input of components/circuits.
PCB is an interactive printed circuit board editor. PCB offers high end features such as an autorouter and trace optimizer which can tremendously reduce layout time. For custom requirements,
Icarus Verilog is a Verilog simulation and synthesis tool. It operates as a compiler, compiling source code written in Verilog (IEEE-1364) into some target format. For batch simulation, the compiler can generate an intermediate form called vvp assembly.
GTKWave is a fully featured GTK+ based waveform viewer. GTKWave is designed to handle many signals at once, it has three signal searching modes (Regular Expressions, Hierarchy, and Tree) as well as the ability to display data in many different formats.
Simple Automobile Safety Radar
There must be a very affordable automobile radar with just a 10-20 feet radius around the vehicle. This should display as a graphic on the dashboard as some of the very old 2D car games. This radar must be based on sonar or infra red to avoid additional EMI-RFI pollution and confusion. The display should show all objects which include people, small animals, kerb and wall.
The sensor has to be a multiple sensor, static belt one near wheels and one at the roof of automobile. The display device on car should be TCP-IP so that you can monitor your vehicle with your cellphone, PDA or any browser.
Cars can have multiple skins like Winamp
If you use organic flexible LEDs, encapsulated in transparent poly-sulphone or some silicones. And the RGB triad matrix of LEDs are driven by a computer system to make it work like a flexible LCD screen. It can be used to form a skin for a car. Only there will be no high resolution, but it will do.
This flexible layer is fixed on the car like a permanent cap. Now with the onboard graphics synthesis embedded car computer you can choose any jpg, png or gif textured tile or make your own. Then output the tile or wallpaper to the car exterior LED matrix skin. Now the Car has become skinnable. Not just colors but fine textures are possible.
Now with a Bluetooth enabled Human Mood Monitor plugin you can make the car exterior to reflect the mood of the life-forms inside. This will make a road alive and traffic jams very colorful.
Some things i had written online around 2002 on cars.
Microcontroller – 8051, 8052, OpCodes, Analog Interface.
(:->)—-\–/—-< Man Sleeping
New Microprocessor learning board demonstrates exemplary design of 8-bit single board computer. More peripheral and easy to adapt to be a dedicated controller.
8051 Microcontroller Kit
8051 kit using 7-segment display and hex key monitor. The design is simple, small number of components and cheap. The size is compact, 5.3×5.7 inches. The keypad is ergo design for young students. The kit is 8051 based microcontroller. So many chip makers produce the 8051 core microcontroller. The kit is available for both preassembled and kit form.
8051 Single Board Computer
The new 8051SBC features;
- CPU: Any 8051 compatible with 40-pin DIP package @11.0592MHz
- MEMORY: 27C256, 32kB EPROM for monitor program
- 62256, 32KB SRAM for both code and data space
- I/O: direct cpu bus interface 2×16 line LCD
- MEMORY and I/O Decoder: GAL16V8D
- EEPROM: 24LC256, 32KB serial eeprom
- RTC: Real-time clock, DS1307 with +3V Lithium backup
- ADC: LTC1298, SPI interface 2-channel 12-bit Analog-to-Digital Converter
- I/O pins: P1,P3 of 8051 cpu, 16-bit I/O port
- Keypad and DIPSW: 4-bit keypad and 4-bit DIP switch
- RS232 Level Converter: MAX232
- RS485: 75176 differential transceiver
- Serial Interface: 9600 8n1
- Monitor Program: Modified PAULMON2 including new commands
delabs Notes –
This is an Educational Masterpiece, with more Relevance to Asian Students. I took my first steps with 8085, Z80 and later 8749. Then the 80C51. If you start writing code for 8080, you will want features which will come in 8749 and when you study 8749 and think of enhancements 80C51 will pop out as if they read your mind.
Once you work with these, then you can use all the new uC and uP easily. It is better you write code with as less EPROM or Flash as possible. This will help you make quality code. The smaller the code the more real time your firmware and lesser bugs.