<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body >One of the things I love about AVRs is that they are electronically much tougher than any ARM I've run across. The only AVR I've ever fried was when I connected its power to wrong side of an lm317 and sent 9 volts into it. Even then, no magic smoke; the code on the chip still functioned, it just lost the ability to be flashed with new code.<div><br></div><div><br></div><div>I've never fried an ARM chip, but that's more dumb luck than anything else. It seems that whenever I mess up some wiring, it's a cheap logic or buffer chip that takes one for the team.</div><br><br><div>-------- Original message --------</div><div>From: Terry King <terry@terryking.us> </div><div>Date:03/30/2015 3:42 PM (GMT-05:00) </div><div>To: triembed@triembed.org </div><div>Cc: drbearee@gmail.com,maryalice@yourduino.com </div><div>Subject: Re: [TriEmbed] Frying Raspberries - TriEmbed Digest, Vol 22,
Issue 25 </div><div><br></div>I think Arduinos are much more resistant to frying. This may be because their older technology<br>has larger features and/or their I/O pins which Atmel assumed would be used for physical computing<br>(as compared to the Pi's processor-centric SOC) have bigger reverse diodes.<br><br>So why not just use Arduino for the physical I/O and link it to a Pi for the Computer/ Operating<br>System / Network / Human Interface World part, and accept the fact that they are so different? And<br>there are so many good software library / device choices out there.<br><br>DISCLAIMER: About to mention stuff from my own shop...!! Watch out!<br><br>AT $15 for a nice Arduino Derivative that already has 20 I/O pins, 20 ground pins, and 20 Vcc<br>pins, plus nice 4-pin I2C and Serial connectors, and a 5V 2A switching supply built in, why not<br>solve a bunch of things that are far from the Linux world. I have sold about 5000 of these <br>(really just selling Atmel 328's and pins) and I think I've got 5 back that were fried "for<br>unknown reasons". I do know of several that were fried for Known, Oops type reasons. And I have<br>had a bad batch of the earlier versions that had fake USB chips that the manufacturer later<br>bricked with a drive update. My board manufacturer replaced them immediately. So we went to the<br>UNO type USB and that has been trouble-free.<br>See:http://arduino-info.wikispaces.com/YourDuino-RoboRED<br><br>I'm looking for a good small HDMI display that costs less than the Raspberry Pi to run it. Anyone<br>seen good possibilities? A Pi with that, a cheap Mouse and and Arduino I/O interface would make<br>many really nice intelligent, networked devices.<br><br>I've been smelling the solder flux smoke for 64 years now (starting with the 1-tube receiver for<br>my Radio Merit Badge) and it's the only kind I like.<br><br>Regards, Terry King<br>...In the Woods in Vermont USA<br>terry@terryking.us<br><br>-The One who Dies with the most Parts LOSES. What do you need??<br><br><br>_______________________________________________<br>Triangle, NC Embedded Computing mailing list<br>TriEmbed@triembed.org<br>http://mail.triembed.org/mailman/listinfo/triembed_triembed.org<br>TriEmbed web site: http://TriEmbed.org<br></body>