Posts Tagged "LCD"

Interfacing a TFT_320QVT LCD/Touchscreen/SD to a Teensy 3.0

I’m working on a project which needs a touchscreen LCD. After searching eBay for a while, I noticed that many vendors were selling basically the same 3.2″ 320×240 TFT with resistive touchscreen and SD card reader. Though there were slight variations in the silkscreens, they all had the same model number – TFT_320QVT. I bought […]

UCTronics 3.2″ TFT LCD Arduino Shield with Touchscreen

Updated 2014-03-14 I’ve been looking for a way to add a touchscreen UI to my projects.  To this end, I purchased a UCTronics 3.2″ TFT LCD Arduino Shield.  Most of the cheap TFT touchscreens that I found need about 38 pins, and therefore, need to interface with an Arduino Mega.  What makes this UCTronics shield unique […]

LiquidTWI2 v1.1.0 Released

For the Adafruit RGB LCD Shield (MCP23017), I changed the GPIO writing from 16-bit to 8-bits. This increased the library size by 14 bytes, but it’s well worth it, because writing a 47-character string has sped up from 99ms to 76ms on my Arduino Duemilanove – that’s about a 25% increase!  This is vs Adafruit’s […]

LiquidTWI2 – A Lean, High Performance I2C LCD Library for Arduino

I have released LiquidTWI2, a lean, high speed I2C LCD Library for Arduino. This library is an extension of the great work done by FalconFour on his LiquidTWI library.  Notable additions to LiquidTWI: support for Arduino 1.0+ support for Adafruit RGB LED Shield (MCP23017-based) LiquidTWI2 also supports the Adafruit I2c Backpack (MCP23008-based) in I2C mode.  […]

Cheap 16×2 LCD Comparison

HD44780-compatible 16×2 LCD’s are cheap (