Circuits & Schematics Microcontrollers Usage: avr - 10

91. I2C Bus Sniffer on AVR
    Circuits Microcontrollers Usage Interfaces
    .. MHz enhancement shows up in a few places. Since the systems I was working on involved a 100 KHz bus, I decided that an 8MHz AVR would suffice. Most serial ports on PC’ s can run as fast as 115,200 baud. If the data is transmitted as ...
    20-05-2010

92. The AVR based USB Touchscreen Mouse
    Circuits Microcontrollers Usage Interfaces
    .. comes to mind, but I really wanted to do something different. Ryan, one of the other SparkFun engineers was working on the AVR Stick, which uses open source firmware available from Objective Development called V-USB to implement the USB 1.1 ...
    05-05-2010

93. FabISP, a fab-able in-system programmer
    Circuits Microcontrollers Usage
    .. A. Mellis The FabISP is an in-system programmer for AVR microcontrollers, designed for production within a FabLab. That is, it allows you to program the microcontrollers ...
    30-04-2010
94. AVR Phone Recorder & Telephony Platform. Part 2
    Circuits Microcontrollers Usage Telephone
    .. sound that much computation. But the question is: can we compute that fast enough? This sounds like the perfect job for AVR’s built-in hardware multiplier, capable of multiplying two 8×8 bit operands in just 2 cycles. However, ...
    28-04-2010
95. AVR Phone Recorder & Telephony Platform. Part 1
    Circuits Microcontrollers Usage Telephone
    .. not paying attention and a battery backup system. Therefore, our device can be seen as a template for a reasonably generic AVR-based telephony platform that can be easily adapted for other applications, such as an answering ...
    21-04-2010
96. 2 channel RF remote control on AVR
    Circuits Microcontrollers Usage Wireless
    .. for more battery economy and safe transmition of the data. The battery economy is made it by the use of powerdown mode of AVR. In this case the AVR goes to sleep with less than 1uA (microampere) current and wait for external interrupt on pin ...
    14-04-2010
97. Telecard reader
    Circuits Microcontrollers Usage Interfaces
    .. viewed to any PC system using the RS232 port, by the Hyper terminal software. The circuit: The circuit based on AT90S2313 AVR microcontroller from atmel, programmed with telecard.hex and telecard.eep . The converter from + - 12V of RS232 to ...
    07-04-2010
98. Electronic safety-lock with telecard as key
    Circuits Microcontrollers Usage Security
    .. Serasidis This safety-lock circuit use the new Atmel AVR microcontroller series, the ATtiny26 . This micros (and new ATmega8 , ATmega16 etc) are powerful microcontrollers ...
    31-03-2010
99. The smallest handheld automatic one-chip AVR-based DC voltmeter
    Circuits Microcontrollers Usage Measurement
    .. version 2.31E. After the Reset procedure (applying power for the first time or after pressing the reset button), the AVR processor initializes TIMER0 and TIMER1. The TIMER0 is configured for timebase and LCD refreshing routine. The 37 ...
    25-03-2010
100. AVR TV terminal
     Circuits Microcontrollers Usage Interfaces
     Introduction When you use microcontrollers in your designs, sometime you face a problem how to show user required data. Several LEDs, 7 segment display or LCD module can be solution. But if you must show a lot of information simultaneously, it can ...
     23-03-2010

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