Hobby Projects - Insulation tester, LED Circuits, Meters.

Monday, December 31, 2012

Electronic Projects by Martin Clausen

Electronic Projects by Martin Clausen

This is the combined homepage of  Hannes , Jonas and Martin

Electronic Projects for 8051 Development

Virtual walk through my 8051 development suite

Virtual walk through my 8051 development suite is a virtual sightseeing tour through my 8051 lab. Dual Slope ADC for 8051 -   A low cost circuit to measure voltages with a precission up to 14 bit.

Some of the Projects here are
  • 8051 Development - Code, schematics and hints for development with 8051
  • Digital Frequency Generator -Frequency generator with DDS technology
  • ┬ÁC ADC - RS232 controlled 16 bit data aquisition
  • Low-cost ADC - PC to take a look at signals up to 1 KHz
  • Datalogger- 8 channel, 2 counter, 64K RAM, LCD, RS232
  • MiniDS- Mini Digital Storage Scope, one channel, low cost ADC.

Sunday, December 30, 2012

Projects of Dick Streefland from De Bilt

usbtiny - Software USB implementation

USBtiny is a software implementation of the USB low-speed protocol for the Atmel ATtiny microcontrollers. Of course, it will also work on the ATmega series. The software is written for an AVR clocked at 12 MHz. At this frequency, each bit on the USB bus takes 8 clock cycles, and with a lot of trickery, it is possible to decode and encode the USB waveforms by software.


 Other Atmel AVR Projects he built are
  • batwatch - Monitor for a solar panel car battery charger 
  • webasto - Remote control of Webasto water heater
  • blink -  Automatic turn signal light
  • nikon- Nikon Camera Remote Control
Projects of Dick Streefland from De Bilt

Dick Streefland, lives in Amersfoort, in the center of The Netherlands. He has some Atmel AVR Projects and he is a big fan of Linux. He started on a 6809-based home-brew system with the OS9 operating system from Microware.

Saturday, December 29, 2012

Programmer for AT89S52 Microcontroller

Build your own a programmer for writing intel-HEX file to the 89C51, 89C52 and 89C55, PCB file included, Window version UPLOADER EZ3, EZ3.1,

Programmer for AT89S52 Microcontroller

Connecting the Easy-Downloader V2.0 to a PC with USB port:

Programmer  for AT89S52 Microcontroller

Newer PC, or laptop computer may not provides the COM port, instead it has the USB port as a standard serial port. I found a cheap adapter, the FTDI232 USB-COM port converter. The adapter uses FT232RL chip. The adapter provides 6-pins connector. To interface it to the Easy-downloader, we needs only three pins, i.e. TXD, RXD, and GND. The chip itself powered by +5V from USB port.

Atmel AT89S52

The Atmel AT89S52 is an 8051 based Full Static CMOS controller with Three-Level Program Memory Lock, 32 I/O lines, 3 Timers/Counters, 8 Interrupts Sources, Watchdog Timer, 2 DPTRs, 8K Flash Memory, 256 Bytes On-chip RAM.

AT89S52 - 8 bit Microcontroller

Compatible with the industry-standard 80C51 instruction set and pinout. The on-chip Flash allows the program  memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer.

Friday, December 28, 2012

KD7LMO amateur radio and open source hardware

KD7LMO amateur radio and open source hardware

Nixie Tube Clock Nixie Tube Clock

"In the pioneering sprit of amateur radio and open source hardware and software, I've assembled a collection of information and engineering plans for a variety of amateur radio projects. These projects cover a wide range of disciplines." - KD7LMO

From the GNU radio web site

"GNU Radio is a collection of software that when combined with minimal hardware, allows the construction of radios where the actual waveforms transmitted and received are defined by software.
GNU Radio
What this means is that it turns the digital modulation schemes used in today's high performance wireless devices into software problems."

GNU Radio

The latest in SDR (Software Defined Radio) technology. Here are some projects and information that rely on the GNU Radio and USRP (Universal Software Radio Peripheral).

Universal Software Radio Peripheral

Thursday, December 20, 2012

Proton BASIC Compiler Development Suite

Proton BASIC Compiler Development Suite and supporting Hardware development platforms. Proton Basic and the supporting hardware is for use with PIC microcontrollers.These development systems even extend to Ethernet and Wi-Fi.

Proton BASIC Compiler Development Suite

Proton IDE is a professional and powerful visual Integrated Development Environment (IDE) which has been designed specifically for the Proton Plus compiler. Proton IDE accelerates product development in a comfortable user environment without compromising performance, flexibility or control.

Proton Net - Networking for PIC microcontrollers.

Proton Net - Networking for PIC microcontrollers.

The PROTON-NET development system is an Internet/Ethernet prototyping board using the PIC® 16F877 microcontroller and Networking Firmware. The firmware was developed for the Crownhill Proton-Net board by Jeremy Bentham of Iosoft Ltd. based on the principles demonstrated in his book TCP/IP Lean: Web Servers for Embedded Systems.

Crownhill Associates Ltd.

Crownhill's offices and R&D facilities are based 15 miles north of Cambridge City, England, just outside of the small city of Ely. Our facility is located in a rural setting, in the heart of the Fen Land...

They manufacture and sell PIC microcontroller Development tools, such as the Proton Development Board and the Proton Development Suite designed for PIC BASIC code development.