When you make your own NTP server, you probably spend a lot of time trying to get it as accurate and stable as possible. To get good results, you need to connect your server to a good time reference, like an atomic clock, GPS or an GPSDO to get the PPS (Pulse Per Second) to sync […]
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So you need to replace the soldering iron on your Atten 8502D Soldering Station. You could just buy the heating element, but you can find a complete soldering iron with cable for less than $12 on eBay, or for a little more on Amazon. so I’ts easier just to replace the whole thing. It Doesn’t Work! […]
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How to add an I2C interface to a Sonoff WiFi Smart Switch. The Sonoff brand is a whole series os IOT devices that uses the esp8266 WiFi processor internally. The devices are cheap and are easily hacked. The simplest device is the Sonoff WiFi Smart Switch, which is a small device that can turn on or […]
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What kind of impedance does this coax cable have? Sometimes you dig around in your partsbin, desperately searching for a bit of coax cable to make a new connector to your amazing whizzbang widget. If you find a piece of cable without markings, how do you know if it’s 75Ω, 50Ω or some other impedance? […]
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I’ve been waiting to get a good Power Bank so I can recharge my iPhone 6 Plus and my iPad when on the go. I didn’t want a too small Power Bank. I use my iPad quite a lot, so one of the main feature it needed was the ability to quick charge at 2.1 […]
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