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Random intermittent problem - hardware or software? Processor: ATtiny461 Frequency: 1mHz internal osc. This is the circuit discussed a week or so ago. A light sensor determines the PWM duty cycle to dim some LEDs. Everything seems... |
Wednesday, 8 January 2014 - 18:48 |
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ADC problem with ATtiny461 Hello everyone. I've had to put my tachometer project on the back burner to get something else done. :? I am not able to get into a lot of specifics, but I have a project that... |
Thursday, 26 December 2013 - 23:18 |
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My Digital Tachometer - putting it all together To review, I am making a digital tachometer that looks like this: To drive the 7 segment LEDs, I am using a MAX7219, and for the bar graph around the perimeter, I'm using 5... |
Thursday, 5 September 2013 - 16:59 |
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Software PWM and shift registers Since I registered with the 'Freaks' at the end of last year, I have been learning various aspects of programming the digital tachometer I am building. I am getting close to... |
Sunday, 28 July 2013 - 01:05 |
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Understanding ATtiny USI with 74HC595s So far, I have some code to bit bang the serial communication with 74HC595s. JJ has inspired me to use the hardware USI on the chip to simplify and speed up my program. I have... |
Wednesday, 12 June 2013 - 21:37 |
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Looking at Tachometer code strategy A year or so ago, I had designed a tachometer using discrete logic and counters. In doing so, my plan was to count pulses for a specific amount of time. In order to preclude the... |
Sunday, 9 June 2013 - 05:00 |
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Pin Change Interrupt questions... I wrote an ATtiny tachometer program that polls the state of the sensor input and increments a counter at each state change (rising and falling). Timer1 times this for 75 msecs... |
Friday, 17 May 2013 - 23:11 |
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Thank You AVR Freaks! I am posting this to thank ALL the AVR Freaks that have contributed to my AVR education! :wink: Special thanks go out to Bob Gardner, Kartman, clawson, Koshchi, and DocJC. I have... |
Thursday, 11 April 2013 - 03:07 |
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Timer0 experimenting with ATtiny261 While I'm waiting to receive a USB oscilloscope to debug my MAX6675 project, I'm experimenting with timer0 to use as a time reference for a tachometer. I lifted a few routines... |
Saturday, 23 March 2013 - 02:33 |
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Read MAX6675 with AVR (ATtiny261) I am gaining confidence with programming AVRs. With the assistance of AVR Freaks bobgardner, Kartman and others, we've got my board lighting seven segment displays and reading a... |
Saturday, 9 March 2013 - 01:31 |
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Read DS18B20 with AVR (ATtiny261) So I now have a working 7 Segment Display routine that bobgardner was generous enough to write and many of you helped me get working the way I want. THANK YOU to ALL! All your... |
Friday, 1 March 2013 - 00:33 |
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7 Segment LED Display with AVR Today I got the Arduino UNO and LCD Shield! It came faster than I expected. :lol: So now I have some questions. Now that I have the Arduino with LCD, how do I drive a 7 Segment... |
Wednesday, 20 February 2013 - 21:48 |