The serial enabled LCD allows you to control a parallel based LCD over a single-wire serial interface. Included in this product is a black on green 16x2 LCD connected to our serial backpack. The backpack, based around a PIC16LF88, takes a TTL serial input and prints the characters it receives onto the LCD. The installed firmware allows for a number of special commands so you can clear the screen, adjust the backlight brightness, turn the display on/off, and more.
Communication with SerLCD requires 3.3V TTL serial at a default baud rate of 9600bps (8-N-1). You can adjust the baud to any standard rate between 2400 and 38400bps. The power, ground and RX pins are all broken out to a 3.5mm pitch screw terminal.
SerLCD has the ability to dim the backlight to conserve power if needed. There is also a potentiometer on the backpack to adjust the contrast.
Note: Though the silkscreen may say '5V', this is a 3.3v Serial LCD. Connect to a 3.3v power source.
Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.
Skill Level: Noob - Basic assembly is required. You may need to provide your own basic tools like a screwdriver, hammer or scissors. Power tools or custom parts are not required. Instructions will be included and easy to follow. Sewing may be required, but only with included patterns.
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If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.
Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
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If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Competent - You will be required to reference a datasheet or schematic to know how to use a component. Your knowledge of a datasheet will only require basic features like power requirements, pinouts, or communications type. Also, you may need a power supply that?s greater than 12V or more than 1A worth of current.
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Based on 3 ratings:
0 of 1 found this helpful:
No complaints regarding the functionality. I don't give it 5 stars for 2 reasons: 1) expensive (but solved my problem, so I can't complain) and 2) the daughterboard with the serial driver, attached behind the display, is rather bulky, which may complicate many installation scenarios. The pictures in Sparkfun don't reveal this issue. If the photo from behind was taken at an angle and not straight down you'd see the daughterboard and screw terminal add approximately 1/2 inch to the depth of the display.
It was pretty easy to get up and running with the Serial enabled display. I have had difficulty getting some of the commands to work such as changing the splash screen and the back light, but for quick and dirty prototyping, this is a definite time saver.
As the previous reviewer mentioned the daughter board and the screw terminals are bulky. In my situation, it is not an issue.
I thought the three wire interface would be very simple, however to use this with an Arduino Uno you need to give it 3.3v and also use a LLC to communicate at 3.3v TTL. Even after giving it the correct voltage, TTL voltage, and baud rate the screen did not work correctly. I tried two screens and neither worked. I tried using a different Arduino and it still did not work. I would not buy this again.
Sorry about that! The 3.3 volt version was made specifically for use with a 3.3 volt system rather than a 5 volt system like the Uno. but we do have a 5 volt version that works great with an Uno or other 5 volt micro controller.