16x2 lcd panel mount free sample
This display has a serial interface with full swing RS232. This display is truly a front-panel solution, not just an LCD module. Designed to fit in a 1U server enclosure, it is by no means confined to one. This display can drive LEDs using the GPIOs provided, configure headless servers, or, with the right software, be a wired remote for your home theater PC.
It has four directional buttons, an enter (check) key, and cancel ("x") key. Instead of using a corruptible stream-based communication protocol, it uses a 16-bit CRC protected packet-based protocol to communicate with its host, meaning that line noise, environmental interference, etc., won"t cause the display to start any process on your host unless it was actually initiated by a user. Because both the keypad and LCD are backlit, this display is great for low-light conditions.
The CFA533 is backward compatible with the CFA633 for its communication interface, but has added features such as 3.3v to 5v operating range, ability to change the keypad backlight brightness separately from the LCD backlight, a stainless steel bezel, and a single supply voltage for both logic and backlighting. Voltage compensated single-supply 3.3v to 5.5v operation allows the module to easily work with a wide variety of power supplies. The CFA533 is the logical progression for any application already using a CFA633, but not utilizing the CFA633 fan functionality. With all its features, this display is perfect for the display and user interface of your next project that requires an LCD and keypad without fan control.
ATX power supply control functionality allows the buttons on the CFA-533 to replace the "power" and "reset" buttons on your system, simplifying your front panel design
I"ve been working on a project that used a 16x2 LCD display and wanted a nice finish that also allowed me to seal against water and other liquids. I also needed impact resistance, low cost and the ability to be changed easily if worn or broken.
2) A small piece of perspex over a cut hole in the enclosure. Cheaper but not so nice finish, showing the full LCD through and any rough enclosure cutting.
I took the original dimensions of the 16x2 LCD display I had and drew it up, including the stand-off holes. I then added an additional 5mm surround to give my bezel additional strength around the fixing holes, and also to make it look better since the holes wouldn"t be right on the edge.
For the 16x2 LCD the display area is approx 15mm x 65mm. I made my window 14mm x 64mm so there is a slight overlap to the display so no edges can be seen.
These correspond exactly to the stand-off holes in the LCD PCB. This means we can use a single metal or plastic bolt to mount both our bezel and the LCD when finished.
Use some of the insulation tape doubled back on itself to act as double sided tape and mount the acrylic piece to some backing paper or card. The masking tape applied already should be FACE UP.
Mounting the piece is to make sure it doesn"t get blown around by the force of the spray can, as we don"t want overspray onto the other side of the acrylic.
You can now mount the bezel to your enclosure, using the mounting holes and some 3mm bolts. The same bolts can be used to mount the LCD behind. I found 3mm x 20mm bolts are ideal. You can also use nylon ones that are used for PCB stand-offs.
The types of flathead countersunk hex head bolts in the attached picture are great for such projects, especially the black bolts. I"ve used them a lot for such panels and also for mounting black items like IEC mains input sockets. They provide a fantastic finish, you just have to be careful and precise with your countersinking. Available on eBay from various sources. I use the M3 type most often but other sizes are available. I"d avoid pan-heads of a different colour on the outside as they don"t look nearly as professional as the countersunk flatheads. If you don"t want to countersink then use the button head ones, they look much nicer than the pan heads.
Another trick is to use stand-offs behind the front panel, bolted to the front panel via countersunk holes at the front with the relevant bolts, then mount the operstional display etc to the stand-offs. The front bezel can then be applied OVER the countersunk bolts using double-sided adhesive or using a silicone bead as it should never need to come off again. I am using this process currently for a frequency meter display.
The Biomaker Stage-2 component pack contains a liquid crystal display (LCD) capable of displaying 2 lines of 16 characters (right). The device is equipped with an I2C interface backpack, that allows serial communication with the device. (This is the black-coloured circuit board soldered to the back of the green-coloured LCD board). The I2C interface allows communication with the LCD screen through two wires plus power supply, rather than 8+ wires required by a parallel port device. The I2C protocol allows comunication with multiple devices on the same 2 wire bus. Each device needs a unique address, usually set in the hardware.
The LCD display is powered by a 5V supply and draws about 25mA with the backlight on, and 2mA without. The green coloured backlight sits behind black coloured characters. The characters are formed in two lines of 16 characters in 5x7 dot matrices.
XOD provides the software node text-lcd-16x2-i2c, that allows direct communication with the display, with inputs for each line of the display (see below). The address of the i2C device should be set at 27h using the ADDR parameter.
Advanced use: If you which to use multiple LCD displays on the I2C bus, you can add solder bridges to the jumpers A0, A1 and A2 on the I2C backpack - in order to change the address of each device, and allow them to be individually addressed. The supplied I2C backpack has a PCF8574T chip: and the IC address is (high order first) 0100 A2 A1 A0. When shipped, A2~A0 are all vacant. The default I2C address therefore: 0100 111 (0x27). If you want to modify the address yourself add the relevant jumpers, noting that floating address pad is 1, and the short circuit is 0 after adding a solder bridge.
Important: There is a potentiometer that controls the contrast setting of the display. It is a controlled by a black plastic wheel at the front left edge of the LCD screen. (Contrast can also be adjusted using the blue potentiometer on the I2C backpack). The contrast setting requires fine adjustment, and the screen will appear blank and unresponsive if badly adjusted. If, on first use, you want to check that the LCD screen is correctly connected (i.e. are using the correct I2C address), use a XOD node to switch the backlight on and off. If that works, load some text into the screen, and adjust the contrast for best legibility.
I got tired of having all my projects show the rough edges of the cut when using 16x2 LCD"s in projects, this solves that and also adds a level of protection for the fragile glass face of the LCD.
This is a black, acrylic bezel for your LCD. This is laser cut from .118" acrylic also includes a .060 piece of clear acrylic cut to the same size behind it to provide some protection for the LCD. Each piece of acrylic has 4 holes for 2-56 screws that fit into the LCD. This faceplate will cover the face of the LCD and only let the glass portion show through.
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In this project, we"ll see how to hook up a 16x2 Character I2C LCD module with a ProtoStax Enclosure for Raspberry Pi to display interesting information like the Pi"s IP Address, Date & Time, or any other information you would like to display!
TheProtoStax LCD Kit V2is a new Extension Kit from ProtoStax. It can be used to add a 16x2 Character I2C LCD module to any ProtoStax Enclosure. You simply replace the top of your existing ProtoStax Enclosure with the one from the kit with the LCD module installed, and you"ll have an enclosure with an LCD screen!
Firstly, mount the LCD screen from the kit to the Top Plate from the kit using the mounting hardware. Then, unscrew and remove the Top Plate from your ProtoStax Enclosure Raspberry Pi (A+/B+, 4B/Zero) and replace it with the LCD Kit Top Plate.
Since the LCD module that is used has an I2C adapter, you only need 2 I2C pins to communicate with it. Wiring is super easy.RPi 5v pin (physical pin 2) - LCD VCC
We are going to interact with the LCD using Python. To do that, we are going to use the install the necessary python packages - we use RPLCD and smbus (to use I2C to communicate with the LCD module).$ sudo pip3 install RPLCD
We"ll demonstrate printing the IP address and Date and Time on the LCD screen, using the Python program below. You can find the source code on the GitHub link below.
Assuming you"ve installed it in ProtoStax_RPi_LCD_Example/ under your home directory, launch the program thus:$ python3 /home/pi/ProtoStax_RPi_LCD_Example/lcd_ip.py
This displays the Date and Time on the first line, and the second line of the 16x2 display shows the IP address and hostname of the Raspberry Pi in a scrolling fashion (as the character count is longer than 16 characters, we have to resort to scrolling). The
Now we want to make sure that this script gets run when we boot up the computer. We therefore create a service (which we call lcd.service) and make sure that the service is enabled (this assumes that the lcd_ip.py Python script is in the /home/pi/ProtoStax_RPi_LCD_Example directory - adjust the path accordingly in the WorkingDirectory below)
When shutting down the computer, the service gets stopped, and the python script as part of cleanup will clear the LCD screen and turn off the backlight.
Of course, you can also use the LCD display to display other information. For example, you cancreate a stock ticker that shows a scrolling ticker of stock prices you are interested in
RC1602B 16x2 Character LCD display has the same specs as RC1602B1. These 2 LCD display modules have the same module dimension 80.0 x 36.0 mm, sharing the same IC ST7066. Default interface is 6800; if you require interface such as SPI or I2C, they’re also available, but the IC will be replaced with RW1063.
RC1602B LCD Display Module 16 Character x 2 Lines with LED backlight provides various color combinations for backlight, for example, yellow-green, blue, white, amber, red. This LCD module without backlight is also available.
Ms.Josey 
Ms.Josey