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SMT Soldering
I made do with a hand-held gun and lots of aluminum foil over everything else.   This was my first introduction to SMT AVRs, and, to be short, it did not go well.   I...
Friday, 10 February 2017 - 16:47
Typical 20 Pin AVR
david.prentice wrote: It is far more convenient to develop a project on a ATmega328P,  ATmega1284 and then pare it down for the smallest,  cheapest target. The XMINI and...
Thursday, 2 February 2017 - 13:23
Typical 20 Pin AVR
Mega8535 chips have 44 pins, and come in cheerfully socketable PLCC packages.  They're usually my go-to chip these days, if still a bit primitive by "modern" AVR standards....
Thursday, 2 February 2017 - 10:46
Typical 20 Pin AVR
NoviceAtmelAVRUser wrote: How does Attiny 2313 measure up as being your typical AVR chip?   I've always been fond of the 20-pin DIP AVRs, ever since the 90S1200 (still have...
Thursday, 2 February 2017 - 07:22
MCP23S17 I/O Expander with ATtiny 2313A - I/O unresponsive?
david.prentice wrote: Looking at FIGURE 2-5: SPI INPUT TIMING in the datasheet,   the device has the MISO pin in high-impedance when /CS becomes active.   Looking...
Thursday, 2 February 2017 - 00:42
Change of Eagle Ownership and Licences
dksmall wrote:  Jorge has posted the ftp site for all the downloads -   Thanks much for the link.  I went and grabbed 7.7.  I don...
Wednesday, 1 February 2017 - 09:00
MCP23S17 I/O Expander with ATtiny 2313A - I/O unresponsive?
I was looking into those things, SPI version as well, and had a question.   I want to use lots of them with a paralleled /SS line, and use the hardware address pins to...
Wednesday, 1 February 2017 - 06:31
7-segment LCD transistor calculations
Fair enough.  It also struck me that I don't know how to tell a real On Semi device from a knockoff just by looking at it.  Even under heavy magnification.  If you...
Tuesday, 31 January 2017 - 07:35
7-segment LCD transistor calculations
valusoft wrote:   No part/maker details. A "lucky dip" if ever I saw one.       Had you taken the time to follow the link, it has a link to a PDF of the spec...
Tuesday, 31 January 2017 - 07:00
7-segment LCD transistor calculations
I thought I should suggest that "All Electronics" has constant current LED drivers (16 per chip(!)) for $1 each.   Serial interface.   They're tiny little things,...
Tuesday, 31 January 2017 - 06:48
Attiny 2313 Interrupt for use with delays
Anyhow, I think we've gone a little off the rails here and the mods should chuck this thing.  S.  
Friday, 13 January 2017 - 17:19
Attiny 2313 Interrupt for use with delays
clawson wrote: I was giving the original poster what I believe, after 35+ years of doing this stuff,  "good advice" that his general approach to solving a programming problem...
Friday, 13 January 2017 - 17:09