lcd module nokia 5110 brands

I had a project that needed some live data display, and looking for the cheapest low-power solution for our loggers lead me to the Nokia 5110 LCD. Once you get the backlight current under control, you can power the entire display from a digital pin, and if you use shiftout for soft SPI you can then get rid of the Reset and CS control lines. This brings the display down to any four wires you can spare on your build (incl. the power pin) and a ground line. This is much more manageable than what you see with the standard hookup guides if your mc is I/O limited like our pro-mini based loggers:

This LCD (I have the old-old kind) is absolutely my favorite. Yes, it has a board-to-glass connector that ranges from bad to abysmal, but it offers such a simple interface and so many pixels for so little money (obviously less if you buy only the panel.) Here are some clever things I"ve discovered:

Will fully operate on as little as 2.0V. That"s power (Vdd) and i/o. It can be driven at 2MHz at these speeds; in fact, the LCD will work at even lower voltages but the contrast fades quickly and your microcontroller will likely approach its lower voltage limit too.

The LCD will work with the chip-select pin (SCE) tied to ground. This means that if it"s the only device on the SPI bus, don"t bother framing the i/o with a chip-select pin. If the bus is shared, frame the entire transaction, not every individual byte you send to the LCD. Interestingly, the display also seems to work fine with a floating Vdd pin - it must draw sufficient power just from i/o via clamping diodes; not surprising when you consider how low-power it is.

The Vout pin: Looks like you don"t have to worry about it on this product, but the bare LCD will generate positive 6-9V on that pin. This wasn"t totally clear to me from reading the datasheet.

(5) If you are using a PIC to run ths thing, and using the PIC"s USART or EUSART in a synchronous mode, be sure to note that the LCD controller expects the MSBit of each byte to be transmitted first on the serial line. The PIC 18F EUSART transmits the LSBit first. For now, I have lots of extra code space, so I"ve wasted a 256-byte section on a lookup table that reverses the bits in a byte. This way, I just write my initialization code normally, and I have a TransmitCommandByte() function that looks up every byte it sends so I don"t have to think about that.

Thank you! I"m not quite sure I do want an LCD yet, to be honest, I"m just considering the different options available. I"ll check out the Sharp component, thanks!

Advice for others: It took me quite a while to get this working on an ARM Cortex. Since there is no way to read from the LCD, it is very hard to know if SPI is working without doing everything perfectly. SO:

If the LCD module is soldered to another board and the two top screws installed and tightened carefully to pull the bow out of the module it seems to prevent (or solve) the problem.

I"m using voltage dividers to supply 3V in the inputs of the LCD, because of the Arduino works in 5V. LCD Vcc and LED are powered from the 3.3V output of the Arduino. The LCD only displayed something when I used: R1=470K,R2=820K. I have tried several values to obtain 3V, but the LCD showed nothing. I don"t understand that.

I"m interfacing this LCD with ATMEGA 32. Its been more than a week that I"ve been trying to get it right. All I get is the LED dimming effect. Here is my initialization code..CE=1;

I have a similar board made by mib-instruments and bought from ebay years ago. It has been my standard spi test tool because it"s so easy to work with. http://www.ebay.com/itm/Nokia-5110-LCD-84x84-dot-martix-backlight-PCB-RED-/320684678723 (specs http://i1119.photobucket.com/albums/k636/mib_instruments/diy/LCDC2A0SPEC.jpg)

I almost have it working satisfactorily but I find that the bottom 1/5th of the screen does not function correctly. Sometimes it has some random blocks that are black, most of the time it is blank. I am not sure what would cause this. Is it safe to assume it is a defect on this module?

These LCD"s need cleaning. I have an average failure rate of about 15-20% on delivery. The most common problem is that the contrast is too high, and there"s constant flickering / changing of contrast compared to the other 80% of them.

The solution is fairly simple, unclip the LCD from it"s board and clean the pads on the PCB with 99% IPA. Then remove the lcd back plate and contact bar. Sometimes the contact bar is stuck fairly well to the glass, peel off carefully. Clean the contacts on the LCD glass with IPA, if any residue from the contacts is left on, rub it off carefully with IPA / tissue.

I love this little display! I wanted to be able to create images for it but nothing I saw did exactly what I wanted. So I wrote a processing sketch that creates 84x48 squares on the screen and allows you to click to turn them on or off. Also has buttons to invert, move up/down/left/right, and flip horizontally/vertically. Then, it saves the hex data to a text file to copy to your code. You can also load an image (any size, any colors) and it will scale it, convert to b/w, then put it in the rest of the program so that you can alter the pixels or move it. It isn"t perfect for every occasion but I"ve found it useful and I hope others might too. It is heavily commented so it should be easy to figure things out and change them if you want something different. http://thewanderingengineer.com/2014/07/12/nokia-5110-screen-photo-to-bitmap-converter/

Anyone taken these things apart yet? You know the flexible rectangular blocky thing that connects the contact pad on the board to the LCD itself? What are these called?

Got mine running last night and found two problems with the code, one of which was the backslash a couple of others have already noted. Second was that the LCDCharacter() writes two blank vertical lines, one before the character and a second after, when only one is needed. Without the extra blank you get at least one additional character on each line. I"ll probably also move the ASCII font table to PROGMEM space to save on RAM and then start to work on some big digits for a clock.

I"m using this LCD for a large Arduino UNO project, but I"m running out of SRAM memory space. I was wondering if I used PROGMEM on the LCD ASCII array if that would help. If so, does anyone know what the right code for this would be? After looking through a lot of PROGMEM examples, I"m not advance enough to really grasp everything that"s going on. Any help you can give would be a great help. Thanks in advance!

I used one of these LCDs with an Arduino to display GPS information. I wrote a few functions that can display large numbers (28 px high) if anyone is interested, this lets me display speed, heading etc. A writeup of my project is here: http://mechinations.wordpress.com/2014/04/07/gps-sailing/

These are great displays. I ran into a problem using them with the nRF24L01+ radio transciever, which requires the use of the SPI bus. If one attaches both the radio and the display MOSI and SCK pins to pins 13 and 11 as instructed in the hookup guide, the SPI traffic of the other device (in this case the nRF24L01+ radio) will prevent the display from functioning. The easy solution is to move the Nokia 5110 MOSI and SCK pins to any other digital pin. This should be made clear in the hookup guide, where it says there is no choice but to use the hardware SPI pins for the display. I found out that is not true at all. I hope his helps others with the same problem. Despite the occasional bad display these carry much more information that the comparably prices 16 x 2 LCD and use fewer pins too boot. What a deal!

This is a great display for the money, certainly the best bang for the buck of you can live with B&W and lower res graphics. I have a lcd driver for Arduino I will post on http://www.marchdvd.com/5110 so take a look there it draws text aligned on pixels boundaries of 8 and draws lines and has invert video options.

I just started messing around with this LCD using a STM32F103 microcontroller running at 72MHz... it works great. The only problem I had, and I suspect others might have if they are using fast processors, is that you have to deliberately introduce the setup and hold time delays on the DC pin... if you don"t you will get spurious pixels written to the display. I used a delay of 10uS, although the spec says 100nS is fine.

I just spent the last couple hours struggling with this LCD because of something very stupid of me. I was using an atmega328p in AVR-GCC and using hardware SPI. Thinking i didn"t need MISO I hooked it to DC. The LCD worked absolutely fine until I tried to set the x and y position in the ram. It started acting weird every time I tried it. Finally I put dc to another pin and BAM NO PROBLEMS. Looking back I feel pretty stupid but hopefully this post will save someone else the same mistake. Other than that great LCD for my projects

The Energia folks have an example program for this LCD and the TI Launchpad written using their Arduino style tooling. I"ve updated their example and added the ability to report back the temperature over a UART. It is a very simple hardware setup since both systems are 3.3v. http://joe.blog.freemansoft.com/2012/08/digital-thermometer-with-ti-lanchpad.html

I tried using the "LCDAssistant" package to create a logo from a graphic that I resized to a b&w jpg of 84x48 but every byte generated was 0x00 so that was not right. I tried fiddling with the settings (flying blind) but still got nowhere - does anybody know the settings for LCDAssistant and this display and has used it successfully?

One of the things that I test regularly is a commercial item that features a 16x4 (HD44780) display. Currently I have a 20x4 on a flying lead that I plug in to determine if a display failure is down the lcd display or the main board.

Is there any way to get the 5110 Graphic Display to work with signals that were feeding to an HD44780? - if I could build that in then I would have a complete multi-testing set up in one box.

Might I suggest you (SFE) source some of the Electronic Assembly"s LCD Dog-S series. I think they would be a step up from these at a reduced price. I don"t think that they website is up to date, but their part number is LED39x41-GR.

I made a little font generator for the Nokia 5110 in the processing programming language (processing.org). It allows you to convert any font and any character that you can display on the screen into a list of hex codes that can be directly used in an embedded system (I"m using msp430). Just type a character and the corresponding hex codes will be in your clipboard and you can copy them into your program. It starts with an example with the chinese character for 5. It should work on any system that can run processing (e.g. mac osx).

I finally got around to running this LCD on my 3310 PCB. It is working fine with one minor problem. The SF 3310 display hides to first line of bytes for some reason and I had to offset everything to compensate. The 5110 doesn"t do this as behaves as expected. I haven"t heard anyone else report this so maybe my initialization code is different.

Using a 3V source, my LCD often worked OK using bias 0x14 like the other examples, but sometimes it would appear gray and faded. The fading would lessen if I touched the panel lightly with my hand for a few seconds, then let go, so maybe it"s a temperature-dependent thing?

Ack! After two days of working nicely with 0x15 bias, I reset the board today, and the LCD appeared way over-dark. I changed the bias back to 0x14 and it looks perfect. What the heck?! I think there must be some temperature-sensing or temperature-dependence going on, so the same init values may produce good-looking results one day but not the next.

If you are having problems with the black pixels in images/warping PCB, use original Nokia 5110, I happened to have one at home and it works as it should, no bad connections degrading image quality.

Does anyone know whether this can be stripped of its backing so it can be used in transmission? I would love to use this as a modulator for a laser beam. Or if someone knows a similarly cheap transmission LCD that would be fine too.

Stuck. Blank LCD. Added 0x20, changed Vop to 0xB3. Guessing connections may be the issue? 3.3v for LED and VCC. GND to GND. Remainder connected to Arduino via voltage dividers. What am I doing wrong?

This is a great little lcd. When I first wired it up, the backlight was shorted (accidentally) against my 5v rail, so i got some magic smoke, and burnt to LEDs but it re-soldered the offending joints and it works very well now. Something to note: the refresh and write times are much, much slower if you use 5 volt logic. I stuck in a logic level converter and it ran at least 5x faster.

You can also use FastLCD to convert your bitmaps - google it. It outputs BASIC code, but you just search and replace &h to 0x and you"re grand. It has the added advantage of being an editor for touching up output.

I recently obtained a virtually identical LCD from a Nokia 5160, and although its backlight LEDs are green, not white and conversely use different voltages, I had success hooking up the LEDs" Vcc pin to a PWM capable pin on the microcontroller, allowing me to control backlight intensity (I didn"t need a current limiting resistor for this either, but adding one will help reduce current drain on the controller).

Seems like the PCD8544 library does it"s own SPI bit managing and it really doesn"t like me using the SD library (also talks SPI) at the same time. I"ve made sure I"ve got all the SPI pins matching for both libraries (MISO, MOSI, Clock are the same and each device has it"s own Select), but it looks like the SD.begin() call just breaks the SPI bus for the 5110 and it becomes non-responsive. The LCD works just fine if I don"t initialize the SD library and the SD card works fine if I do initialize the SD card.

I"m pretty sure I tracked down the problem- the PCD8544 library uses software SPI while the SD library uses hardware SPI and I"m pretty sure the Arduino can"t do both over the same SPI clock/miso/mosi pins. Anyone know if this LCD will work with hardware SPI?

I"ve had issues with the LCD not showing anything intermittently. You got to make sure that all the connections are secure, and for the reset pulse, be sure to have a delay that"s 30-50 milliseconds long.

As much as I love SFE products and will continue to order from them, this is one product I would not recommend. The connection between the LCD unit itself and the carrier board is via those rubber polymer connectors. All the planets must line up properly for them to work. In this case, the carrier board was warped preventing the connection from working. You will find other such remarks in the comments area.

Don"t do this. Each divider will be burning 20x the entire amount of current that the display needs to function, and the whole assembly will waste 100x the LCD"s needed power and many, many times more than even the atmega needs to run at full speed. This will kill battery life.

Hi, I just bought this wonderful LCD but I"m having huge huge problems connecting it..could anyone please point me in the right direction? Since there are pins that aren"t metioned in the code, for example the 6 - DNK(MOSI)...

Does anyone know the diode rating and package size, also does anyone know where to get the rubber ferroius connector behind the LCD mine is defective. Has anyone come into issues with the breadboard the LCD is connected to, a few aren"t working for me.

Yes, we have noticed that the PCB was bowing and as a result the LCD now only works when we press down on the metal strip at the top. I hope that only a small number of these LCDs have this problem. We"re expecting a shipment to arrive today, I will be running more tests.

Edit: After leaving glue to dry overnight, LCD simply does not turn on anymore. All the connections are good, but absolutely nothing shows on the LCD now at all. Only the LEDs come on.

Did you get either of the LCDs to display anything, at any time? Is it possible that the connections were OK, but you were not initializing or driving them correctly? Or did they start to work at one point, and then fail at some later point?

Note that the backlight LED"s are soldered onto the breakout board, and have nothing to do with the circuitry of the controller and LCD. So just because the backlights are shining doesn"t tell you anything about the operability of the LCD itself.

It depends on the code that you are using to control the LCD. If you are using the Arduino example above, the pins are defined in the beginning of the code.

FWIW I have connected this LCD with a 5V power supply to a 5V Arduino board with no level conversion and it worked. Presumably this may reduce the lifetime of the LCD.

I am attempting to use this with a Duemilanove (ATmega328). Up til now, I have been powering it with the 3.3V line, including the LED. The datasheet for the LDC claims: "VDDmax = 5 V if LCD supply voltage is internally generated (voltage generator enabled)." The logic levels should be kept from 2.7V to 3.3V. Since the Duemilanove uses 5V logic levels, I am using a simple voltage divider on the communication line with no issues.

The maximum logic value of 3.3 volts made me cautious of driving the LCDs at the native 5 volts of my Teensy AVR. That said, running purely off 5 volts seems to do no harm to the LCD.

For those interested, I have taken a few measurements of the current draw of the LED backlight of my LCD. As I said earlier, powering the LED with 5V external has caused permanent damage to one, perhaps two of the four LEDs. So, use the following graph at your own risk.

Is there any more documentation available for the additions to the LCD? For example, the datasheet has no information (that I could find, at least) on the LED. Everything seems fine on 3.3V, but what is the current limit on the LED? (note: if it wasn"t for work, I would just mess around with it myself.)

Here is a PicBasic Pro example for the 3310, which should be compatible with the 5110. http://www.picbasic.co.uk/forum/content.php?r=174-Using-Nokia-3310-LCD

Fantastic! It appears from your example link that this uses the same controller as the Nokia 3310 that I"ve already used in past projects. The only thing that made it so cumbersome was trying to connect to its fine pitch press on type connector. This gives me a great low cost display option that is easy to connect to.

If anyone doesn"t have experience with this LCD, take a peak at the Arduino example link above to see just how easy it is to use. If you use plain C on your AVRs, I have sample code on http://tinkerish.com.

The graphic LCD driver used in Nokia 5110 LCD Module (Blue) is Philips PCD8544 which is also used in Nokia 3310 cell phones. The PCD8544 is a low power CMOS LCD controller/driver, designed to drive a graphic display of 48 rows and 84 columns. All necessary functions for the display are provided in a single chip, including on-chip generation of LCD supply and bias voltages, resulting in a minimum of external components and low power consumption. The PCD8544 interfaces to microcontrollers through a serial bus interface.

Nokia 5110 LCD Module (Blue) is placed on an easy to solder PCB and its control pins are left outside for breadboard compatibility. Therefore you can use this module on breadboards for easy prototyping.

It uses the PCD8544 controller. The PCD8544 is a low power CMOS LCD controller/driver, designed to drive a graphic display of 48 rows and 84 columns. All necessary functions for the display are provided in a single chip, including on-chip generation of LCD supply and bias voltages, resulting in a minimum of external components and low power consumption. The PCD8544 interfaces to microcontrollers through a serial bus style interface.

Note: Do not connect the LED pin (8) directly to 5VDC as it willdamage the backlight LEDs (hook up to 3.3V in the pic above). While rest of the LCD does seem to work off 5VDC power and signals from an Arduino, please keep in mind that this may diminish the life of the LCD. It is recommend that you use a 3.3V power and a 3.3V based Microcontroller with this graphic LCD and use current limiting for the LED backlight. An alternative is to use logic level converters with 5V TTL microcontrollers.

Think back to the pre-iPhone era, when the only time you touched your phone’s tiny black-and-white LCD screen was to wipe it clean. Back then, Nokia’s 3310 and 5110 cell phones used these tiny LCDs.

The PCD8544 controller’s on-chip LCD supply and bias voltage generation reduces power consumption, making it suitable for power-sensitive applications. The LCD normally consumes only 6 to 7 mA.

The backlight is made up of four LEDs spaced around the display’s edges. To change the LCD’s backlight, remove the LCD from the board by pushing the metal clips on the back side. You’ll notice four LEDs soldered around the display’s edges. Simply replace the LEDs with the desired color LEDs.

The PCD8544 LCD driver includes 504 bytes of Graphic Display Data RAM (GDDRAM) that stores the bit pattern to be displayed on the screen. This memory area is divided into 6 banks (from 0 to 5). Each bank has 84 columns/segments (from 0 to 83). And each column can store 8 bits of data (from 0 to 7). That certainly proves that we have:

The PCD8544 LCD controller has flexible but complex drivers. To use the PCD8544 controller, extensive knowledge of memory addressing is required. Fortunately, the Adafruit PCD8544 Nokia 5110 LCD library was written to hide the complexities of the PCD8544 controller, allowing us to control the display with simple commands.

Filter your search by typing ‘nokia‘. There should be a few entries. Look for Adafruit PCD8544 Nokia 5110 LCD library. Click on that entry, and then choose Install.

This sketch will provide you with a thorough understanding of how to operate the Nokia 5110 LCD display and can serve as the foundation for more practical experiments and projects. Try out the sketch, and then we’ll go over it in detail.

In the setup function, we initialize the LCD object using the begin() function. We also set the contrast of the display using the setContrast(value) function, where value can range from 0 to 100. However, a value of 50-60 produces excellent results.

The final step is to use the display() command to instruct the library to bulk transfer the screen buffer to the PCD8544 controller’s internal memory and display the contents on the LCD.

The print() or println() functions can be used to display numbers on the LCD. Because an overloaded implementation of these functions accepts 32-bit unsigned int values, you can only display numbers ranging from 0 to 4,294,967,295.

Our last example shows how to draw bitmap images on the Nokia 5110 LCD display. This comes in handy when displaying things like logos, sprites, infographics, or icons.

The drawBitmap() function is used to display a bitmap image on the LCD. This function accepts six parameters: the top left corner X coordinate, the top left corner Y coordinate, the monochrome bitmap byte array, the bitmap width in pixels, the bitmap height in pixels, and color.

Once you have a bitmap, you must convert it into an array that the PCD8544 controller can understand. This can be accomplished in two ways: with image2cpp (online) or with LCD Assistant (offline).

There’s also a Windows application called LCD assistant that can turn your bitmap image into a data array. It is not as powerful as image2cpp, but it is still widely used by hobbyists.

The 5110, also known as Nokia 5146 on One2One (now T-Mobile), or the nk402 on Orange in the UK, was intended for the consumer market, succeeding Nokia 3110 and the analogue Nokia 232. Its design is based on the same platform as Nokia 6110 for the business market. It features a similar, simpler, revamped user interface called Series 20,infrared data interface. It can, however, be interfaced with a computer via a cellular data card and a proprietary cable, enabling it to function like a modem to connect to remote computer systems through the Public switched telephone network (PSTN).

It is the first Nokia phone to come with replaceable faceplates, which Nokia branded "Xpress-on" covers; a concept Nokia incorporated into several other consumer-oriented cellphones aimed at the young adult market for years to come, allowing users to customize their device.trademarked in the U.S. on 25 February 1998.

In the Asia Pacific region, Nokia launched a successor to the 5110, the 5110i. The 5110i has longer talk and standby times, and had a more ergonomic, redesigned, silicone keypad.

While the Nokia 5110 operates only on 900MHz GSM networks, the 5130 operates on 1800MHz GSM networks instead. It was marketed by Orange UK as the nk402.

The North American variant of this handset is Nokia 5190, which is a 1900 MHz-only GSM handset. Nokia 5125 is the North American version of the 5110i.

Nokia 5160/Nokia 5165 with TDMA/IS-136 service on 800 MHz and 1900 MHz and analog AMPS service at 800 MHz is the same handset form. Nokia 5120/5125 is a TDMA/IS-136 handset that operates on 800 MHz, and also on AMPS at 800 MHz.

This Nokia 5110 LCD Display is a monochrome lcd module comprised of 84×48 pixels that can be used to display rich graphic and text content. Though it’s an industrial module, this lcd display is extremely easy to use. This module is a revision that accepts 3-5v input. So no extra level shifter is needed. To have full control, you just need 5 pins. and as a classic display module among open source communities.

Can use the conductive glue to connect the module with the printed board, without cables. The metal hooks on the module can fix the module on the printed board, which is very easy to install and replace.

nokia 5110 lcd module provide the touch interface in smartphones, which are vital for them to function. Alibaba.com stocks a stunning range of high-tech nokia 5110 lcd module with vibrant color depictions. Truly crystal-clear displays of nokia 5110 lcd module are available covering various brands and models such as the Samsung Galaxy Edge 2, OnePlus 7T, Samsung Galaxy C5, and many more.

nokia 5110 lcd module are the most commonly used displays, as they produce great image quality while consuming low power. Rather than emitting light directly, they use back lights or reflectors to produce images, which allows for easy readability even under direct sunlight. nokia 5110 lcd module are energy-efficient, and are comparatively safer to dispose of, than CRTs. nokia 5110 lcd module are much more efficient when it comes to usage in battery-powered electronic equipment, due to their minimal power consumption.

Some other advantages of nokia 5110 lcd module over the CRT counterparts are - sharper images, little to no heat emission, unaffected by magnetic fields, narrow frame borders, and extreme compactness, which make them very thin and light. Some types of nokia 5110 lcd module are transmissive, reflective, and transflective displays. Transmissive displays provide better image quality in the presence of low or medium-light, while reflective displays work best in the presence of bright light. The third type of nokia 5110 lcd module, transflective, combine the best features of both the other types and provide a well-balanced display.

Whether as an individual purchaser, supplier or wholesaler, browse for an extensive spectrum of nokia 5110 lcd module at Alibaba.com if you don"t want to stretch a dollar yet find the best fit.

The Nokia 5110 is a basic graphic LCD screen for lots of applications. It was originally intended to be used as a cell phone screen. This one is mounted on an easy to solder PCB.

It uses the PCD8544 controller, which is the same used in the Nokia 3310 LCD. The PCD8544 is a low power CMOS LCD controller/driver, designed to drive a graphic display of 48 rows and 84 columns. All necessary functions for the display are provided in a single chip, including on-chip generation of LCD supply and bias voltages, resulting in a minimum of external components and low power consumption. The PCD8544 interfaces to microcontrollers through a serial bus interface.

The name of this product itself is enough to explain its origin. Yes of course !!! this LCD module was used in old Nokia 5110/3310 cell phones. Now its been widely used by hobbyists for graphics, text etc.

Nokia 5110 LCD Display Module is a low-cost monochrome LCD module comprised of 84x48 pixels that can be used to display rich graphic and text content. Though it"s an industrial module, this LCD display is extremely easy to use. This module is are vision that accepts 3-5V input. So no extra level shifter is needed. To have full control, you just need 5 pins. And as a classic display module among opensource communities, there are handful related tutorials available over the Internet. So there is no need to panic even if you just got your foot in the door.

Though it’s an industrial module, this LCD display is extremely easy to use. The Nokia 5110 is a basic graphic LCD screen for lots of applications. It was originally intended for as a cell phone screen.

This Nokia 5110 LCD Display Module is mounted on an easy to solder PCB. The Nokia 5110 LCD Module uses a Philips PCD8544 LCD driver, which is designed for mobile phones.

Nokia 5110 LCD Display Module is a low-cost monochrome LCD module comprised of 84 X 48 pixels that can be used to display rich graphics and text content. This module is a revision that accepts 3-5V input. So no extra level shifter is needed.

It uses the PCD8544 controller, which is the same used in the Nokia 3310 LCD. The PCD8544 is a low power CMOS LCD controller/driver, designed to drive a graphic display of 48 rows and 84 columns. All necessary functions for the display are provided in a single chip, including on-chip generation of LCD supply and bias voltages, resulting in a minimum of external components and low power consumption. The PCD8544 interfaces to microcontrollers through a serial bus interface.

Can use the conductive glue to connect the module to the printed board, without cables. The metal hooks on the module can fix the module on the printed board, which is very easy to install and replace.