Posted in Learning Electronics, Power switch, Sprinkler Projects on May 10th, 2013
Voltage conversion from 24VAC to 5VDC is quite useful, because a lot of home automation devices use 24VAC, including sprinkler solenoids, home surveillance systems etc. Having a conversion module makes it easy to use a single power supply, without a separate 5V adapter for your control circuit. There are plenty of resources you can find […]
Posted in Arduino, Learning Electronics, Sprinkler Projects on Apr 24th, 2013
During the process of cleaning up my workshop today, I collected all the OpenSprinkler prototype boards that have had design mistakes or were built and failed in the past, and looks at this whole box of lovely PCBs: Probably no less than 30 boards in the box. It’s quite shocking to realize how many there […]
Posted in Learning Electronics on Mar 20th, 2012
When you are making products in batches, you need a quick way to test them and make sure they function as expected. For example, three weeks ago, I sold close to 100 AASaver kits in a day, and I needed a good way to automate the testing before they are shipped out: Well, this is […]
Posted in Learning Electronics on Jan 2nd, 2012
Recently I was fortunate to receive a Microchip PICkit 2 from Newark.com to write a review on. I was very excited to get it because I have always wanted to learn about PIC microcontrollers. Why? Well, so far I have been quite experienced with Atmel’s AVR family chips, thanks to the Arduino that first got […]
Posted in Learning Electronics on Dec 10th, 2011
I’ve had some rudimentary experience with surface mount (SMT) soldering in the past. The method I learned basically involves squeezing out solder paste from a syringe onto the PCB, placing the components, and then using a hot skillet to reflow. It’s pretty easy to learn. But if I want to produce assembled PCBs in large […]
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