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Voltage Controlled Volume / Amplifier
Hey Freaks!   Does anyone know of a simple VCA (Voltage Controlled Amplifier) hack that would use an LM358 op amp instead of a transconductance op amp?   I want to...
Monday, 23 November 2015 - 21:03
AVR helps out on Vulcan-74, a 7400 Logic VGA Mega Game System.
I must admit, I have been away from the AVR Freaks grid for a while, and have been going back in time to the 6502 days! But since AVR assembly is the best programming language...
Sunday, 2 August 2015 - 15:36
Need to do something REALLY strange with an interrupt
Ok, as usual I need to do something way outside of the box with an AVR.   I need to enter a timer interrupt (no problem), but within that interrupt, I need to disable global...
Sunday, 9 November 2014 - 20:48
ATTiny-85 Does Color VGA, Sound and Joystick @ 32MHz!!
Greets Fellow Freaks! Had a day off to hack about in my lab, so I came up with a challenge, and here are the results. The Challenge : To make an ATTiny do color VGA and Sound. So...
Saturday, 30 August 2014 - 19:37
What happens in the Flash after-life?
Let's say an AVR was reprogrammed many more times past the stated flash memory life cycle expectancy using an in circuit programmer. So, what happens in the after-life? Would the...
Friday, 29 August 2014 - 16:15
Found a hidden VGA feature!
While I was hacking around with my ATtiny85 VGA / Sound generator, I found something interesting about the VGA signal, something I had never heard of or seen before. You can send...
Sunday, 11 May 2014 - 16:36
Quark-85 Demo Kube - 184 x 240 VGA with 8 Colors and Sound on an Tiny85!!
Greets Freaks! It has been a long time since I had a free weekend to hack away on my favorite uC, but today I took out a small breadboard, a few resistors, a VGA connector and...
Sunday, 8 September 2013 - 23:22
Can't find in datasheet - PWM timer / pin phase relationship
I am trying to determine if a PWM timer would be in perfect sync with a pin change operation. I need to set up a timer to change a pin at exactly the same time that an out...
Friday, 2 August 2013 - 13:37
Odd load capacitance
While messing around with one of my projects, I took out the clock oscillator and connected up a 3.579MHz crystal. I had to run a set of 6 inch wires form my small board to a...
Tuesday, 5 February 2013 - 02:36
Poll / Advice (PDI, JTAG or both)
Greets out to all Freaks! I am adding the final touches on an XMega board that has an XMega384 with all pins broken out to breadboard pins. I intend to make 100 units and possibly...
Sunday, 3 February 2013 - 17:35
Trimming Some Bloat While Shaving a Yak.
I know I will take hell for my odd coding methods, but humor me if you will! Ok, so I am working with XMega Virtual ports and absolutely HATE! HATE! HATE! anything to do with ASF...
Sunday, 13 January 2013 - 07:56
SD Card Idea... Crazy or Sane?
I am doing a project that could make use of an SD card to read images and sound files. These files are already in a format needed for my routines, and were created by custom...
Saturday, 12 January 2013 - 06:27

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