Breaking News
Comments
Newest First | Oldest First | Threaded View
Max The Magnificent
User Rank
Author
Re: This may not be the end of it...
Max The Magnificent   11/6/2013 5:42:27 AM
NO RATINGS
@David: If I get it going I'll post a pic.

Or even write a blog?

David Ashton
User Rank
Author
Re: This may not be the end of it...
David Ashton   11/6/2013 4:29:30 AM
NO RATINGS
@Max..."Oooooh, shiny!"    VERY.  If I get it going I'll post a pic.

Max The Magnificent
User Rank
Author
Re: This may not be the end of it...
Max The Magnificent   11/6/2013 4:22:20 AM
NO RATINGS
@David: ...monster (think 9 x 5 inches) vacuum fluorescent 4-line x 20-char displays...

Oooooh, shiny!

David Ashton
User Rank
Author
Re: This may not be the end of it...
David Ashton   11/6/2013 4:03:41 AM
NO RATINGS
@Max - it is good advice and I have in part taken it - I ordered another one-wire display board only to go with another of my displays - I have tons of LCDs and a couple of monster (think 9 x 5 inches) vacuum fluorescent 4-line x 20-char displays I got on a sale at one of my suppliers.  But it will also be a spare. The chip is socketed (as are all Picaxe board chips) so easy to swap. 

There's another very good bit of advice I once got - if it works, don't fix it!  Since this is not a commercial product going out to a customer after repair, I'll go with that one for now!

Max The Magnificent
User Rank
Author
Re: This may not be the end of it...
Max The Magnificent   11/6/2013 3:37:30 AM
NO RATINGS
@Antedeluvian: Replacing the IC after an event like tihis is always a good idea- it will pay for itself in the long run.

This is very sound advice that is worth its weight in gold :-)

David Ashton
User Rank
Author
Re: This may not be the end of it...
David Ashton   11/5/2013 1:59:16 PM
NO RATINGS
Thanks Aubrey, yes I was very lucky and it may not last.  I am powering my kit from 3 x AA batteries and the batteries I am using are not the best.  I think that is why I got away with this.  If I'd had it on a 5V 1A supply it would have been toast I think.  Anyway a new chip is a few dollars and the code is open source and all chips on Picaxe's worn boards are socketed,  so easily fixed.  I have  a few LCD Dislplays with a 2x7pin ribbon cable header, so I could easily make up some PCBs myself for them to use this one wire system.

antedeluvian
User Rank
Author
This may not be the end of it...
antedeluvian   11/5/2013 11:30:38 AM
NO RATINGS
David

 Miraculously, it worked... so not only are the PICAXEs programmable by DIYers like me, they are idiot-proof as well!

Although it may work now, it may fail "inexplicably" down the road and it may also sometimes do weird things as a result of internal damage. When I have experienced these weird conditions I have spent many hours trying to figure out what is going on, only to come to the conclusion that there is something wrong with the chip and then remembering the inverse insertion. Replacing the IC after an event like tihis is always a good idea- it will pay for itself in the long run.



Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Radio
LATEST ARCHIVED BROADCAST

What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.

Brought to you by:

Like Us on Facebook
Special Video Section
The LTC2380-24 is a versatile 24-bit SAR ADC that combines ...
In this short video we show an LED light demo to ...
02:46
Wireless Power enables applications where it is difficult ...
07:41
LEDs are being used in current luxury model automotive ...
With design sizes expected to increase by 5X through 2020, ...
01:48
Linear Technology’s LT8330 and LT8331, two Low Quiescent ...
The quality and reliability of Mill-Max's two-piece ...
LED lighting is an important feature in today’s and future ...
05:27
The LT8602 has two high voltage buck regulators with an ...
05:18
Silego Technology’s highly versatile Mixed-signal GreenPAK ...
The quality and reliability of Mill-Max's two-piece ...
01:34
Why the multicopter? It has every thing in it. 58 of ...
Security is important in all parts of the IoT chain, ...
Infineon explains their philosophy and why the multicopter ...
The LTC4282 Hot SwapTM controller allows a board to be ...
This video highlights the Zynq® UltraScale+™ MPSoC, and sho...
Homeowners may soon be able to store the energy generated ...
The LTC®6363 is a low power, low noise, fully differential ...
See the Virtex® UltraScale+™ FPGA with 32.75G backplane ...
Vincent Ching, applications engineer at Avago Technologies, ...