light switch lcd touch screen free sample

1. Details: length 120mm, width 80mm, thickness 3mm, black color frame with a semi-transparent window for screen (which makes the panel looks totally like a black panel when the screen light is off), silver printed buttons, clear surface, well-polished straight flat edge with chamfer 0.5mm. Welcome to custom your design.

2. Processing: From cutting raw material – glass sheet into little pieces to making physical/heat tempering treatment, the processing procedures are done in our factory. And so is the screen printing step. The production volume reaches 2k – 3k per day. For customized request, that coating anti-fingerprint on the clear surface is workable, this keeps it dirt resistant and fingerprint resistant.

3. Better performance than acrylic glass (acrylic, actually a kind of plastic panel) in yellow resistance ability. The glass panel has a shiny crystal look. Adding a panel of glass to your light switch is just like adding an elegant design to your product, to create the more popular item in market.

Be a decoration on water / tea boiler faceplate and help to improve the touch control function, instead of pressing keys. Majorly the black and the white color are used to fit the production appearance. Widely used on the small appliance, such as in air quality monitor, panel heater controller, home security access set, etc.

In this Arduino touch screen tutorial we will learn how to use TFT LCD Touch Screen with Arduino. You can watch the following video or read the written tutorial below.

For this tutorial I composed three examples. The first example is distance measurement using ultrasonic sensor. The output from the sensor, or the distance is printed on the screen and using the touch screen we can select the units, either centimeters or inches.

The next example is controlling an RGB LED using these three RGB sliders. For example if we start to slide the blue slider, the LED will light up in blue and increase the light as we would go to the maximum value. So the sliders can move from 0 to 255 and with their combination we can set any color to the RGB LED,  but just keep in mind that the LED cannot represent the colors that much accurate.

The third example is a game. Actually it’s a replica of the popular Flappy Bird game for smartphones. We can play the game using the push button or even using the touch screen itself.

As an example I am using a 3.2” TFT Touch Screen in a combination with a TFT LCD Arduino Mega Shield. We need a shield because the TFT Touch screen works at 3.3V and the Arduino Mega outputs are 5 V. For the first example I have the HC-SR04 ultrasonic sensor, then for the second example an RGB LED with three resistors and a push button for the game example. Also I had to make a custom made pin header like this, by soldering pin headers and bend on of them so I could insert them in between the Arduino Board and the TFT Shield.

Here’s the circuit schematic. We will use the GND pin, the digital pins from 8 to 13, as well as the pin number 14. As the 5V pins are already used by the TFT Screen I will use the pin number 13 as VCC, by setting it right away high in the setup section of code.

I will use the UTFT and URTouch libraries made by Henning Karlsen. Here I would like to say thanks to him for the incredible work he has done. The libraries enable really easy use of the TFT Screens, and they work with many different TFT screens sizes, shields and controllers. You can download these libraries from his website, RinkyDinkElectronics.com and also find a lot of demo examples and detailed documentation of how to use them.

After we include the libraries we need to create UTFT and URTouch objects. The parameters of these objects depends on the model of the TFT Screen and Shield and these details can be also found in the documentation of the libraries.

Next we need to define the fonts that are coming with the libraries and also define some variables needed for the program. In the setup section we need to initiate the screen and the touch, define the pin modes for the connected sensor, the led and the button, and initially call the drawHomeSreen() custom function, which will draw the home screen of the program.

So now I will explain how we can make the home screen of the program. With the setBackColor() function we need to set the background color of the text, black one in our case. Then we need to set the color to white, set the big font and using the print() function, we will print the string “Arduino TFT Tutorial” at the center of the screen and 10 pixels  down the Y – Axis of the screen. Next we will set the color to red and draw the red line below the text. After that we need to set the color back to white, and print the two other strings, “by HowToMechatronics.com” using the small font and “Select Example” using the big font.

Now we need to make the buttons functional so that when we press them they would send us to the appropriate example. In the setup section we set the character ‘0’ to the currentPage variable, which will indicate that we are at the home screen. So if that’s true, and if we press on the screen this if statement would become true and using these lines here we will get the X and Y coordinates where the screen has been pressed. If that’s the area that covers the first button we will call the drawDistanceSensor() custom function which will activate the distance sensor example. Also we will set the character ‘1’ to the variable currentPage which will indicate that we are at the first example. The drawFrame() custom function is used for highlighting the button when it’s pressed. The same procedure goes for the two other buttons.

So the drawDistanceSensor() custom function needs to be called only once when the button is pressed in order to draw all the graphics of this example in similar way as we described for the home screen. However, the getDistance() custom function needs to be called repeatedly in order to print the latest results of the distance measured by the sensor.

Ok next is the RGB LED Control example. If we press the second button, the drawLedControl() custom function will be called only once for drawing the graphic of that example and the setLedColor() custom function will be repeatedly called. In this function we use the touch screen to set the values of the 3 sliders from 0 to 255. With the if statements we confine the area of each slider and get the X value of the slider. So the values of the X coordinate of each slider are from 38 to 310 pixels and we need to map these values into values from 0 to 255 which will be used as a PWM signal for lighting up the LED. If you need more details how the RGB LED works you can check my particular tutorialfor that. The rest of the code in this custom function is for drawing the sliders. Back in the loop section we only have the back button which also turns off the LED when pressed.

Operator can easily direct the device without specialized technical training or computer knowledge by combining touch screen to LCD panel, plasma EL or other display.

Lanbon, a chinese company smart home tech company has released a series of Wi-Fi mesh connected touch switches with an LCD screen and some other accompanying devices.

I have received the L8-HS 5 in 1 LCD smart switch. 5 in 1 meaning you can choose between 5 existing modes and adapt the switch to your current needs. You can choose between a 1, 2 or 3 gang light switch with a max load of 200W per gang or completely switch it up and use it as a curtain switch for any kinds of motorised covers. Lastly you can forego using the relays completely and use it as a scene switch to remotely control other Lanbon devices.

Each mode will change the buttons displayed on the screen accordingly. With that you also have the option to modify the labels and icons for your switches as well as change the theming of the UI.

European version of the switch has an 86mm by 86mm front plate inside which is a 49mm by 59mm color LCD touch screen protected by a, I assume, acrylic plate. The front plate contains all the brains of the switch while the mains switching relays and power supply are in the back of the switch. There’s a thin white strip running through the middle of the front plate sides.

The LCD touch portion of the switch is attached to a metal plate with a slide and lock system. You simply slide it out to install the switch in your electrical box.

Everything needed for installation is neatly labelled and explained in the instruction booklet. I hooked it up in my testing board as a 3 gang switch and slid the front plate back on. After giving it power, the screen lit up and started booting with a Lanbon logo displayed. The thin white strips around the switch also lit up, seems they are some sort of status RGB LEDs and they color cycle while booting.

Switching worked out of the box but the Wi-Fi icon is red, which probably means I have to connect it to my Wi-Fi. Good ole instruction booklet tells me to long press on the Wi-Fi icon to get to the settings menu.

But there’s a different way, straight through the switch! There are three green dots at the bottom of the screen that are barely visible. Tapping there will start a Wi-Fi AP scan.

Click on your AP and enter the password using the full fledged on-screen keyboard. Entering the password isn’t that elegant since you need to scroll left and right on the keyboard but it works.

At the top of the screen is a status bar, similar to the one in our mobile phones. In the middle is a clock. To its right is the power monitoring data. On the left side is the Wi-Fi and mesh network status.

“Greenmode” automatically turns off the light after the configured interval. When “Greenmode” is active a green leaf icon is displayed in the status bar right of the clock.

You can set screen brightness and screen timeout time. Turn on Home Assistant support. Calibrate temperature offset. Choose between power consumption or current power used displayed on the main screen. You can also flip the display to landscape orientation. Of course, there’s the obligatory Factory reset.

And then there’s something called “epidemic report:”. After turning it on I can select a country. And with this I got a display of COVID stats for my country when the switch goes to sleep mode. Got to have a good reminder of how bleak the times are, just before turning on the light.

While the switch has quite a rich settings menu, not all features are available for setup. For that you will have to install the Lanbon SmartLiving app and register an account.

In the Change icon menu there’s an option to choose a local image or take a photo to, presumably, use as the icon for that switch. Sadly my version of the app simply crashes when I try to do that.

The less violating option. Open the App and go to Settings - Set Server and choose “Homeassistant Server”. Enter your local MQTT broker credentials there and the switch will inform you server settings have changes. You have to enable “Homeassistant support” in GUI settings so it starts broadcasting MQTT messages.

Now the switch is completely cut off from the cloud and communicates only locally. App will not work anymore until you disable Home Assistant support in the switch menu.

Lanbon claims the device will be autodiscovered but it is broadcasting the switch discovery message on the wrong topic. Lanbon assumes you will change discovery_prefix: in homeassistant but that is likely to break other MQTT discovery protocols, so the autodiscovery doesn’t exactly work. You need to configure the switch manually in .yaml.

The implementation is very basic. There is no availability topic or switch updates after a reboot so the state will not always be synced and you will not know if it goes offline or disconnects from the MQTT server.

There is no option to upgrade the firmware directly from the switch when a new version is released. Instead of that simple procedure you have to email the support staff with a request to allow you an upgrade. Once they get your switch information from the QR code they allow an upgrade and a new option appears in the settings menu for a limited time. If you wish to upgrade again you have to go through the entire process again.

Status LEDs on all 4 sides of the switch are an interesting feature which wasn’t thought out completely. Light diffusion is uneven, on top and bottom you can see the 4 LED’s while on the sides the light is nicely diffused into a single strip of light.

When you tap a button on the screen it informs you with a brief color change. If there’s something wrong (for example Wi-Fi is not connected) it glows red.

That is nice and useful but in my firmware version there were no options to control the way it is lit or turn it completely off. You can only put the switch into Night mode through the app which will turn the light off when the screen is off or dim it to a faint white when in use.

While the construction and the design of the switch is very good its usefulness is bogged down by the limited firmware, a clumsy GUI and a needlessly convoluted upgrade process.

Still, there is so much potential hidden in it and, luckily, the switch is based on ESP32 so who knows, maybe someone will start a good open source firmware project for it. I for sure will try installing Tasmota on it!

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Brilliant supports LED, CFL, halogen, incandescent. Dimmable incandescent and LED lights also work. Brilliant does not support MLV lighting. There are features to help you perfect your lighting experience, such as auto-detecting your light capabilities, setting your dimmable range, and other adjustments to minimize or eliminate flickering. We have tested this with a wide range of lighting vendors to great success. Brilliant also works with numerous lighting products such as Phillips Hue, Lutron, and Lifx through the SmartThings Hub. See all

Yes, Brilliant supports dimmable incandescent and LED lights. There are also features to help you perfect the experience, such as auto-sensing your light capabilities, setting your dimmable range, and other adjustments to minimize or eliminate flickering. We have tested this with a wide range of lighting vendors to great success.

Yes, we support 3-way switching. You can set up a Brilliant to work with switches from another manufacturer in a 3-way configuration as long as that other switch is on/off, and not a dimmer. You can also set up multiple Brilliants in a 3-way configuration with dimming. Learn more

We support a wide variety of smart home products, and are always adding new partners. Our primary connection method is to use Wi-Fi for partner products like Sonos, Ring, Google Nest, Ecobee, Honeywell, Philips Hue, Wemo lights, August Lock, and smart plugs, and more. If you would like to connect to smart locks like Schlage, or already have Z-Wave or Zigbee products, we also support hubs from SmartThings so you can control them from a Brilliant. Amazon Alexa is already built in, so you just need to connect to your Amazon account. You can also use both Google Assistant/Google Home and Apple HomeKit devices to voice control the lights. See all partners

We designed Brilliant so that everyone (family and guests in particular) can quickly understand how it works with no training. Once you install Brilliant, you can swipe your finger up/down on the screen to turn on/off lights. For Brilliant Controls made to replace 2-4 switches, move your fingers up and down on the touch sliders. Adjusting the Sonos volume or music track that you are listening to has never been easier.

A surface capacitive touchscreen uses a transparent layer of conductive film overlaid onto a glass sublayer. A protective layer is then applied to the conductive film. Voltage is applied to the electrodes on the four corners of the glass sublayer to generate a uniform electric field. When a conductor touches the screen, current flows from the electrodes to the conductor. The location of the conductor is then calculated based on the activity of the currents. Surface capacitive touchscreens are often used for large screen panels.

Projected capacitive touchscreens are extremely precise and quick to respond and are typically found on smaller devices such as iPhones, iPod touches, or iPads. Unlike the surface capacitive touchscreens, which use four electrodes and a transparent conductive film, the projected capacitive touchscreens use a vast amount of transparent electrodes arranged in a specific pattern and on two separate layers. When a conductor moves near the screen, the electrical field between the electrodes changes, and sensors can instantly identify the location on the screen. Projected capacitive touchscreens can accurately register multi-touch events.