20×4 SerLCD – Black on RGB 3.3V SparkFun原廠

NT$905 NT$857 未稅


貨號: LCD-14074(C4-13) 分類: , 標籤: , , , ,
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SparkFun 20×4 SerLCD – Black on RGB 3.3V

SparkFun SerLCD 是基於AVR的,串行啟用的LCD,它為將20×4黑色RGB液晶顯示器添加到您的項目中提供了一種簡單且具有成本效益的解決方案。我們已經通過包括可處理所有屏幕控制的ATmega328P來徹底改進了屏幕背面的PCB設計。現在,該顯示器可以通過三種不同的方式進行通信:串行,I 2 C和SPI。這簡化了所需的電線數量,並允許您的項目顯示各種文本和數字。

板載ATmega328P AVR微控制器採用11.0592 MHz晶振,可實現更高的通信精度,可調節的波特率為1200至1000000,但默認設置為9600。此SerLCD的固件是完全開源的,可以進行您可能需要的任何自定義設置。

SparkFun 20x4 SerLCD - Black on RGB 3.3V


  • 20×4,黑色,RGB顯示屏
  • AVR ATMega328p(帶有Arduino兼容的引導程序)填充在每個LCD屏幕的背面,並處理所有LCD控制
  • 三種通信選項:串行,I 2 C和SPI
  • 通過軟件特殊命令控制的可調I 2 C地址(默認為0x72)
  • 緊急重置為出廠設置(啟動時將跳線RX跳至GND)
  • 操作退格字符
  • 傳入緩衝區最多存儲80個字符
  • 背光的脈衝寬度調製可直接控制背光亮度和電流消耗
  • 對比度的脈寬調製允許軟件定義的對比度量。
  • 用戶自定義啟動畫面
  • 開源固件和Arduino兼容的引導加載程序可通過Arduino IDE進行更新





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 into your project. We’ve 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 simplifies the number of wires needed and allows your project to display all kinds of text and numbers.

The on-board ATmega328P AVR microcontroller utilizes 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 opensource and allows for any customizations you may need.


  • 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)
  • 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