Visual cues that align with people’s expectations help them quickly determine which items to click. They attach meaning to visual properties such as shapes, colors, and context based on familiar patterns. In the online world, people judge what is clickable based on prior knowledge about the world in general and the web in particular. Don Norman, co-founder of Nielsen Norman Group, has described these physically perceptible cues that hint at the use of an object as perceived affordances, or, more recently, signifiers.
#Signal web ui how to#
However, this article focuses on the visual aspect of clickability: can you tell what’s actionable, simply by looking at the page? How an object looks tells us how to use it. Then scroll down to find the answer.Ī major factor in attracting clicks is the quality of the link text. Guess which areas on this screen are clickable.
They guard clicks with care and resent sites that force them to hunt for clickable items, or, even worse, waste their clicks.
It’s a simple matter of interaction cost : People treat clicks like currency and they don’t spend it frivolously. As Jakob Nielsen puts it, “Life is too short to click on things you don’t understand.”
Make clickable elements obvious to users so they don’t need to ponder the meaning of design elements or encounter nasty surprises when something doesn’t work as expected. Users need to know which areas of the page are plain static content, and which areas are clickable (or tappable). This logic will be implemented in the future.įinally, it is easy to talk about the interface when I have it at hand, but it might difficult to understand how it works in reality.Navigating the web is a means to an end and every click counts.
#Signal web ui code#
Also, there isn’t any code responsible for sending data to the generator’s web server and the code lacks some safety check functions, such as checking if typed value is correct and usable. Moreover, I might add additional functions such as login screen, ability to save parameters to the internal memory, etc. I haven’t mentioned any html/JS code in the post, because at this point the code is a huge mess and it is nowhere finished. Finally, there is an ‘Output’ button which will turn on/off generator’s output. Also, the buttons ‘Freq’, ‘Amp’ or ‘Offs’ works as ‘cancel’ buttons when you are typing in the parameter values. After typing in a needed number, and pressing one of the unit keys, input is saved and shown in the display. For example, if you press ‘Freq’, the units are shown: ‘Hz’, ‘kHz’ and ‘MHz’. Furthermore, when you press one of the mentioned buttons, numeric keypad is enabled (its color changes to yellow) and parameter unit keys are shown with units needed for a particular parameter. Then you are allowed to type in either Frequency, Amplitude or Offset respectively. To type in some parameters, you need to press one of the buttons: ‘Freq’, ‘Amp’ or ‘Offs’. Also, a button to the left from ‘…’ is also without any function. You can also see a ‘…’ button, which at this point doesn’t have any function, but it could be used as a menu or a ‘second function’ button in the future. The keyboard has waveform selection buttons, which will change output waveform between sine, triangle and square waves. You can see almost everything in the imageĪbove: the ‘display’ with needed information, and a keyboard for the user Let’s look on a basic web interface based on those several needs: Also, there should be a keyboard which allows user to type in the generator’s parameters. So, how should look the main control interface? I think that it needs to have some sort of “display” element where important information, such as waveform, frequency, amplitude, offset, etc., is shown. Arduino BQ24295 Battery Charger Library.AD9833 Library and Further Output Noise Reduction.Custom Design PCBs and How To Get Them Manufactured.
#Signal web ui generator#
Final PCB Design for the DIY Waveform Generator.IPS LCD, ESP32 with eSPI library and Touch screen.Those WEB pages will probably be copy-pasted, so most important part is index page which will be the main interface used for controlling the generators parameters. Yet again this device is going to have the same features for connecting it to an access point and/or turning on its own AP. The WEB UI will be based on previous code which was a WEB UI for a temperature sensor. It is going to be either ESP32 or ESP8266, which are both Wi-Fi enabled microprocessors and can act as standalone WEB servers. Note, I started talking about WEB interface, which means that I have almost decided on an MCU to use. Means a starting point from which interface could be made more advanced withĪdded features, logic, design elements etc. Let’s continue building a signal generatorĪnd take another step by making a basic web interface.
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