Circuits & Schematics Microcontrollers Usage: avr - 2

11. AVR takes under 1µs to process quadrature encoder
    Circuits Microcontrollers Usage
    .. requires dedicated hardware. This Design Idea shows a simple scheme to accomplish this function using only an ATtiny2313A AVR microcontroller. Of course, the microcontroller can also be connected to other devices via the serial interface, or ...
    25-05-2016

12. Read multiple switches using ADC
    Circuits Microcontrollers Usage Atmel ATMega168
    .. Hughson EDN The ATMega168 is a great general purpose 8-bit AVR microcontroller from Atmel . It has 23 GPIO pins, but sometimes (as I have found) you can run out of I/O pins as ...
    10-03-2016

13. osPID - open source PID-controller. Part 1 - Main Board
    Circuits Automation MCU Open-Source Platforms Microcontrollers Usage Arduino
    .. sound 1 reset button Analog reference voltage with LC filter Auto reset selection through jumper 7 38 VDC input range 6-pin AVR In-circuit serial programming (ICSP) header Dimension 46.99 mm × 46.99 mm Can be slotted into 1/16 DIN panel ...
    04-03-2014
14. A Generic Optimized 16-bit LCD Adaptor for the Arduino. Part 2 - Software
    Circuits Interfaces MCU Open-Source Platforms Microcontrollers Usage Arduino
    .. wait states XMCRA=_BV(SRE); } Because performance is absolutely paramount I wrote the data and command output functions in AVR assembly language. inline void Xmem16AccessMode::writeData(uint8_t lo8,uint8_t hi8) { // this is equivalent to : // ...
    05-10-2013
15. A Generic Optimized 16-bit LCD Adaptor for the Arduino. Part 1 - Schematic
    Circuits Interfaces MCU Open-Source Platforms Microcontrollers Usage Arduino
    There are many TFT modules available on the market that are designed to connect directly to an MCU to provide a full colour graphical display, just search ebay for “tft module” to see what I mean. Unfortunately for Arduino users the ...
    05-10-2013
16. 125 kHz RFID Tag Reader
    Circuits Security Wireless Microcontrollers Usage
    .. v1.00 is 1024 bytes and it occupies the 100% of the Flash program memory of ATtiny13. Maybe a migration to any other 8-pin AVR such as ATtiny85 it would be a good idea if you want to add more functions to the source code. Downloads Source ...
    31-05-2013
17. AVR frequency meter - from 1Hz to 10MHz
    Circuits Measurement Microcontrollers Usage Atmel ATtiny2313
    .. can be bought anywhere, and with a small size that allow it to be mounted in the panel on any device (Figure 1). Figure 1. AVR frequency meter - from 1Hz to 10MHz The circuit consists of seven 7-segment displays, Atmel AVR ATtiny2313 ...
    17-05-2013
18. Simplecortex - Arduino compatible ARM Cortex development board. Part 1 - Hardware
    Circuits MCU Open-Source Platforms Microcontrollers Usage Arduino BRC Electronics SimpleCortex
    .. and software behind Arduino, and some of the applications it is powering. Original Arduino boards are based on Atmel AVR 8-bit microcontrollers that are limited in processing power and even more in Flash and SRAM . Additionally Arduino ...
    14-02-2013
19. Thermocouple Temperature Meter
    Circuits Measurement Microcontrollers Usage
    The thermocouple is a kind of the temperature sensors. It is inexpensive and the measureing range is very wide compared to thermisters or temperature sensor ICs. However because the output voltage is small and relativistic, the thermocouple ...
    26-11-2012
20. AD9833-based USB Function Generator
    Circuits Oscillators Measurement Microcontrollers Usage
    .. make one myself. I found a pretty common DDS (direct digital synthesis) chip, called AD9833 . Then just strap a USB-enabled AVR micro there and maybe some analog electronics. This board doesn't do any of the special analog magic to allow for ...
    15-10-2012

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