There is a wide selection of gate opener products available online or at local shop, The price would range from several hundred dollars to more than a grand. It is really hard to tell the difference by the appearance. After intensive research on reviews, I decided to purchase the ALEKO AR1450 sliding gate opener with gear rack… continue on yu.xueming.org
Gate frame is up, now it’s time to do the electrical work. First of all, I needed to have power on the site! After searching around the house, I decided to run the power cord from my garage. I already noticed that my garage is on a 25 Amp breaker in my plan. 25 AMP should allow enough juice to flow through for the gate opener… continue one yu.xueming.org
After the plan was consolidated , the first thing I needed to do is to purchase the material. With all sorts of hardware stores around, nothing was difficult here except for 2 pieces of galvanized pipes that would be 18ft long… continue on yu.xueming.org
A recent project requires soldering 600+ tiny LEDs on long narrow circuit boards. The LED, Philips Rebel Z ES, is as small as 1.6mm x 2mm, and is placed 2.5mm apart from each other…continue on yu.xueming.org.
Although I can skillfully solder as small as 0.5mm pitch QFN package chip by hand (post, video), more and more space saving components appearing on the market are totally IMPOSSIBLE to hand solder… continue on yu.xueming.org