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Although usually we need more RF remote control transmitters than wireless receivers, and usually we will carry transmitters around, we always see them (that’s why you will hear transmitters more often than receivers), but for something to be done, you will always need a complete RF remote control system, and the receiver is a integral …

There is a lot to say about RF remote control, for example, its design, circuit, quality and many more, while this guide mainly focus on one thing people ask all the time, which is how to choose RF remote control suitable for ourselves? First things first, we are talking about RF remote control, so we …

You can see labelled distance on every remote control, some says 100m while other long range may say 1000m, also you may notice that all distance are line-of-sight distance, or distance in theory that might vary greatly in real field test. Customer might wonder why sometimes there is so much difference between labelled distance and …

Wireless signals are more and more commonly seen nowadays, which caused increasing complex RF environment around the world, thus keeping wireless link stability is harder than ever, even on simple gadgets such as handheld remotes. On one way, wireless signals is more crowd at commonly used frequency such as 433MHz, which easily caused RF blocking, …

Preamble Please note, the original article was written on year 2011, which is more than 5 years ago, a lot of things has changed (for example, rolling code are used more and more in today’s market), so we decided to write a small guide to explain the remotes that fit steps below. In the original …

First you will need to install the PICkit3 standalone programmer software, which can be found at link below. The .NET framework version 4.00 is required. You can download it at http://www.microsoft.com/download/en/details.aspx?id=17718 (standalone) http://www.microsoft.com/download/en/details.aspx?id=17851 (web version) PICkit3 Programmer Application Setup v3.10.zip (1.66 mb) Then please first leave PICkit programmer unconnected to PC, and receiver board unconnected …

Recently we have received customer development request, for making a customized lift control, which controls the movement of industrial lift, using either manual button or wireless remote. To test and verify our receiver hardware and software design, we have built a small elevator model, as in following photo. Also you can check out our video …

For typical keyfob driven by SAW resonator, the high quality usually means optimised for best frequency stability, fast startup time and ghost-less working, which will greatly affect actual working distance. The first point, best frequency stability, is achieved when local LC network’s actual working frequency is a little more than desired frequency, and drifts SAW …

Which frequency should I use when planning to design a RF (Radio Frequency) product in the United States? 315MHz is primarily used for remote key less entry (RKE) systems and garage door openers. As a result, this frequency is somewhat crowded, increasing the chances for interference. The FCC allowed power is lower than 418MHz or …