DESCRIPTION
The SparkFun SerLCD is an AVR-based, serial enabled LCD that provides a simple and cost effective solution for adding a 20×4 Black on RGB Liquid Crystal Display to your project. SparkFun has seriously overhauled the PCB design on the back of the screen by including an ATmega328P that handles all of the screen control, meaning a backpack is no longer needed! This display can now communicate in three different ways: serial, I2C, and SPI. This version comes equipped with a Qwiic connector, bringing serial LCDs into the Qwiic ecosystem. This simplifies the number of wires needed and allows your project to display all kinds of text and numbers.
The onboard ATmega328P AVR microcontroller utilizes an 11.0592 MHz crystal for greater communication accuracy with adjustable baud rates of 1200 through 1000000 but is default set at 9600. The firmware for this SerLCD is fully open source and allows for any customisations you may need.
NOTE: Since the SerLCD is a 3.3V device, please make sure you convert to 3.3V logic depending on your chosen microcontroller or single board computer. Otherwise, you may risk damaging your board.
FEATURES
- 20×4, Black on RGB Display
- The AVR ATMega328p (with Arduino-compatible bootloader) is populated on the back of each LCD screen and handles all of the LCD control
- Three communication options: Serial, I2C and SPI
- Adjustable I2C address controlled via software special commands (0x72 default)
- Qwiic connection
- Emergency reset to factory settings (Jumper RX to GND on bootup)
- Operational backspace character
- Incoming buffer stores up to 80 characters
- Pulse width modulation of backlight allows direct control of backlight brightness and current consumption
- Pulse width modulation of contrast allows for software defined contrast amount.
- User definable splash screen
- Open-sourced firmware and Arduino-compatible bootloader enables updates via the Arduino IDE
RESOURCES
- Hookup Guide
- Firmware Hex File
- GitHub Firmware Repo
- Dimensional Drawings (PDF)
- Python Support (Qwiic_Py)
Fast Delivery and Professional Packaging
Through our long-term relationship in a long-standing partnership with UPS, FedEx, DHL as well as a range of other world-class carriers, we are able to offer an array of shipping options. Our warehouse personnel are extremely skilled and will package your items according to our exact and precise specifications. Your products will go through an exhaustive inspection and securely secured prior to being shipped. We deliver to thousands of customers each day from multiple countries. This is a sign of our dedication to being the largest online retailer worldwide. Warehouses and distribution centers can be found in Europe as well as the USA.
Note: Orders with more than one item will be assigned a distinct processing period dependent on the particular item.
We will thoroughly inspect all items before sending. Most orders are delivered within 48 hours. The estimated delivery time is between 3-7 days.
Returns
The stock is dynamic and we are unable to completely manage it because of the fact that several parties are involved, which includes our warehouse and factory. Stocks can be changed at any moment. It's possible that your order could become unfulfilled once you've placed your order.
Our policy is valid for 30 days. If 30 days have passed in the past since you purchased however, we're unable to give an exchange or refund.
You are able to return an item when it's unopened and in the same condition as when you first received it. It should also be in its original packaging.
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