Circuits & Schematics - Interfaces - 8

Compiling the firmware The ATtiny45 is quite new and thus not all parts of the development chain support this chip in their current release versions. The latest binutils (linker an assembler) and avrdude (programmer) support the new chips as well ...

Attach any I 2 C client chip (thermo sensors, AD converter, displays, relais driver, ...) to your PC via USB .. quick, easy and cheap! Drivers for Linux, Windows and MacOS available. The i2c-tiny-usb project is an open source/open hardware ...

Hi friends, Here is my project on interfacing of SD Card (microSD). microSD cards are available very cheap nowadays, a great option for having a huge memory in any embedded system project. It is compatible with SPI bus, so the interfacing is easy. ...

Introduction The I2C Bus Sniffer allows for non-intrusive monitoring of an I2C bus. All data, including device addresses, ACK/NAK, START and STOP conditions, are reported in textual form to a serial terminal. A familiar theme in open-source ...

Today, although the wireless technology grows very fast, the long distance funicular communication still keeps its popularity. The reason is obvious that cost and complexity is high at the wireless communication. Click to enlarge RS232 is one of ...

Introduction We have been selling the PSP and Nintendo DS touchscreens for a while now and it is about time we do something cool that uses them. A LCD touchscreen project first comes to mind, but I really wanted to do something different. Ryan, one ...

Introduction This tutorial continues from Character LCD Displays - Part 1. In this part we will connect the LCD module to an Atmega8 microcontroller, then write some code to drive it. The Circuit Our first task is to build the circuit. Click to ...

Introduction LCD character displays can be found in espresso machines, laser printers, children's toys and maybe even the odd toaster. The Hitachi HD44780 controller has become an industry standard for these types of displays. This tutorial will ...

This is a keylogger based on PIC12F675 with 64K eeprom ( 24LC512 ). When keylogger is connected between PC and keyboard it will record every keypress to memory. By pressing a button recorded data will be sent back to PC so user can read it. No need ...

Attention!!! This circuit its only a reader its not programmer. You CANNOT refill, hack or any illegal thing, the telecards. The purpose of this circuit its to understans how a microcontroller read, serial, the telecard, to build some other ...