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Will the world end if I ignore this?
Bought some micros cheap for hobby use.  This was on the bag.  
Wednesday, 24 July 2019 - 21:48
What was your first micro programming experience?
I'll tell you mine (and date myself).   Back in the mid 70s the price of 8080As had finally dropped down to something a student could afford, at $39.95 (James Electronics)....
Sunday, 21 July 2019 - 23:15
Any interest in Cortex M0+ ASM code to drive WS2812B LEDs?
Not sure if this is the right forum to ask, but I've written an ASM routine for Cortex M0+ to bit-bang output data for WS2812B LEDs that I'm happy to share.  The...
Monday, 24 June 2019 - 19:42
What's a good level translator from 3.3V to 5V? Either single drivers or multiples.
I have occasions where I need to drive 5V hardware, and I'd also like to work more with ARMs, which, with a few exceptions, top out at 3.3V.  So what are some standard...
Friday, 21 June 2019 - 20:13
Has anybody used the ADC LSB to generate random bit sequences?
I might have an application where such random bit sequences are useful.  I had the idea of connecting an output pin (which is doing its own thing driving some hardware)...
Tuesday, 18 June 2019 - 19:45
When you have a hammer, everything looks like a nail
My son totally surprised me last week by texting that he wanted to learn Morse code.  He's been using an app, but he needs a CPO (code practice oscillator).  I looked in...
Thursday, 20 December 2018 - 18:57
Home Automation, what do you recommend?
Not sure if this is a better fit for here or Off Topic.  Please move if this is the wrong forum.   Anyway, we're doing a large remodel on a 50 year old house, and I'm...
Thursday, 27 September 2018 - 02:59
Anybody used one of those ebay LCD display serial interface boards?
I just ordered a couple of these boards that are flooding ebay.  Thought they'd be interesting to play with.   https://www.ebay.com/itm/1X-IIC-...   Anybody have...
Friday, 24 August 2018 - 20:53
Does an enabled internal pullup remain active in power-down sleep mode?
Device is ATTINY_13.  I don't see anything in the data sheet about this (looking in the wrong places?).  I need a pullup (internal or external) on an INT pin for wakeup...
Friday, 12 January 2018 - 20:09
First time working with battery power, am I going down the right path?
I have to design an unusual device, with a small AVR (not yet selected) at its heart, that runs off 3 D or C cells.  When running the device will draw maybe 200 mA, but it...
Wednesday, 20 September 2017 - 23:00
Home automation - is X10 still the big player, or is there something else?
I want to control some (currently dumb) AC outlets for outdoor lights and such, and in the past X10 would have been the solution.  Is it still the main solution, or have new...
Friday, 18 March 2016 - 03:15
I need a special kind of switch
Here's my problem.  I need to wake up (and sleep) a battery-powered AVR by closing a switch or some other means, but I can't have any physical contact with the board or...
Saturday, 27 February 2016 - 22:58

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