USB AVR Programmer

USB AVR Programmer

Serasidis says "Nowadays, USB is the most popular connection connection between PC and peripherals such as AVR programmers, printers, scanners etc. For that reason I had to modify my old serial AVR In-System-Programmer (ISP) to work with USB connection. You can say, "use a USB to Serial adaptor to connect your AVR ISP with your PC". Yes, that could be a solution but it would cost me more money than a singe FT232BM chip because I had to include an USB to RS232 adaptor and a power supply for my programmer. (almost €30)".

So, the solution was to replace the two transistors, that were used to adapt the RS-232 voltage levels to TTL voltage levels, with a USB to RS-232 chip such as FT-232BM.

PIC Low Cost USB-CAN Distributed Motion Control System

This project presents high performance distributed motion control system at extremely low cost. Rapid prototyping of multi-axis designs is often required during the development of automation equipment. One can use centralized controls with PC motion control cards, external amplifiers, and a tangle of wires, or utilize existing high cost distributed motion control system with RS485, Ethernet, or one of the fieldbuses (DeviceNet, CANOpen, Profibus, etc.). With the use of highly integrated microcontrollers, such as the PIC18FXX8, and power devices like the Allegro A3977/A3959, a very small and inexpensive system was developed.

Download
document and schematic

tag : motion control system, USB, PIC project src

PIC Low Cost USB-CAN Distributed Motion Control System

This project presents high performance distributed motion control system at extremely low cost. Rapid prototyping of multi-axis designs is often required during the development of automation equipment. One can use centralized controls with PC motion control cards, external amplifiers, and a tangle of wires, or utilize existing high cost distributed motion control system with RS485, Ethernet, or one of the fieldbuses (DeviceNet, CANOpen, Profibus, etc.). With the use of highly integrated microcontrollers, such as the PIC18FXX8, and power devices like the Allegro A3977/A3959, a very small and inexpensive system was developed.

Download
document and schematic

tag : motion control system, USB, PIC project src

Simple AVR USB Temperature Probe

This simple USB temperature probe uses the AVR USB library by Objective Development. The included ruby script reads the temperature and optionally logs it using RRDTool. The EasyLogger would send the data values over a keyboard interface. The project uses a custom device class and reads values using the ruby-usb library. The project primarily intended to be used in Linux, although it is possible to get it to work in XP with a bit of hassle involved.
Download
USB Temperature Probe Documentation

Term : AVR, USB, Temperature Project src

Simple AVR USB Temperature Probe

This simple USB temperature probe uses the AVR USB library by Objective Development. The included ruby script reads the temperature and optionally logs it using RRDTool. The EasyLogger would send the data values over a keyboard interface. The project uses a custom device class and reads values using the ruby-usb library. The project primarily intended to be used in Linux, although it is possible to get it to work in XP with a bit of hassle involved.
Download
USB Temperature Probe Documentation

Term : AVR, USB, Temperature Project src

I2C Bus Analyzer with USB link to PC

I2C-bus analyzer is a electronic project that has function to capture all transmissions via I2C/TWI bus, decode it and send to PC via virtual RS-232 port. Received data can be displayed by any terminal program on PC computer. The project use ATTiny2313 microcontroller with 20MHz crystal as main part. Link to PC are realized by FTDI FT245RL on UM245R module.

Download

Schematic
PCB bottom layer
PCB top layer (wire jumpers)
PCB top overlay
Firmware
link

I2C Bus Analyzer with USB link to PC

I2C-bus analyzer is a electronic project that has function to capture all transmissions via I2C/TWI bus, decode it and send to PC via virtual RS-232 port. Received data can be displayed by any terminal program on PC computer. The project use ATTiny2313 microcontroller with 20MHz crystal as main part. Link to PC are realized by FTDI FT245RL on UM245R module.

Download

Schematic
PCB bottom layer
PCB top layer (wire jumpers)
PCB top overlay
Firmware
link