https://www.baldengineer.com/tag/arduino-shieldRecent content in Arduino Shield on Bald EngineerHugoen-USTue, 24 Mar 2015 22:09:42 +0000https://www.baldengineer.com/ouch-the-arduino-gsm-shield-has-a-pretty-serious-design-flaw-with-its-capacitors.htmlSat, 14 Sep 2013 02:44:39 +0000https://www.baldengineer.com/?p=1867Tantalum is a really misunderstood capacitor. Well, all capacitors are misunderstood, but that’s a subject for another post. I ran across this post on the Arduino forums on the Arduino GSM shield. In the post, ddewaele, reports that the shield blew up, catching fire. At first some might think it was due to abuse by the user. While it is possible that reversing the polarity or applying over-voltage could cause a catastrophic failure, it is also possible that the user doing nothing wrong could result in the same failure mode!

https://www.baldengineer.com/8x6-led-matrix-shield-for-ardiuno.htmlMon, 27 Sep 2010 01:34:40 +0000https://www.baldengineer.com/?p=237This is a quick video demonstrating the LED Matrix Shield for the Arduino. This Matrix is an 8x6 “Normal” matrix. (It is not Chairleplexed.) Blue LEDs were used to give it a brilliant hue and to provide another source of light in dimly lit apartment homes. Only one row of the Matrix is lit up at one time. This is done to save power and because the ATMega processor of the Arduino cannot source or sink more than 200mA of current.