Graphics sliders for Teensy MCU’s

Use this simple library to add slider controls to your touchscreen projects. Code is written for the ILI9341_t3 library but can easily be adapted to any library that leverages the Adafruit_GFX library. Perfect for your Teensy projects.

Library at:

Complete list of methods
class SliderH
// class constructor
SliderH(ILI9341_t3 *disp, uint16_t left, uint16_t top, uint16_t wide, uint16_t sliderColor, uint16_t backColor, uint16_t handleColor);

// initializer
void init(float scaleLow, float scaleHi, float scale = 0.0, float snap = 0.0);

// method to draw complete slider
void draw(float val);

// method to move handle as user drags finger over handle, this method automatically looks for a valid range press, sets changed() to true
float slide(float x, float y);

// property to determine if the slider was just changed, draw and changed methods set to false
bool changed();

// way to reset colors (useful for drawing enabled or disabled)
void setColors(uint16_t sliderColor, uint16_t backColor, uint16_t handleColor);

// method to just set the handle color (useful for showing handle in green for OK value
void setHandleColor(uint16_t handleColor);

// method to just draw the handle (useful for quick update of handle color)
void drawSliderColor(bool val);

class SliderV
// class constructor
SliderV(ILI9341_t3 *disp, uint16_t left, uint16_t top, uint16_t high, uint16_t sliderColor, uint16_t backColor, uint16_t handleColor);

// initializer
void init(float scaleLow, float scaleHi, float scale = 0.0, float snap = 0.0);

// method to draw complete slider
void draw(float val);

// method to move handle as user drags finger over handle, this method automatically looks for a valid range press, sets changed() to true
float slide(uint16_t x, uint16_t y);

// property to determine if the slider was just changed, draw and changed methods set to false
bool changed();

// way to reset colors (useful for drawing enabled or disabled)
void setColors(uint16_t sliderColor, uint16_t backColor, uint16_t handleColor);

// method to just set the handle color (useful for showing handle in green for OK value)
void setHandleColor(uint16_t handleColor);

// method to just draw the handle (useful for quick update of handle color)
void drawSliderColor(bool val);

class SliderOnOff
// class constructor
SliderOnOff(ILI9341_t3 *disp, uint16_t left, uint16_t top, uint16_t width, uint16_t height, uint16_t sliderColor, uint16_t backColor, uint16_t OnColor, uint16_t OffColor);

// method to draw complete slider
void draw(bool val);

// method to move handle as user drags finger over handle, this method automatically looks for a valid range press, sets changed() to true
bool slide(float x,float y);

// property to determine if the slider was just changed, draw and changed methods set to false
bool changed();

[marioroberts]

Thanks dude fully appreciated and nice vid👊🏽

[threedmation]

Hello and thanks very much for your video. The UTouch library doesn't exist anymore. How can I test your code without getting errors?

[SethEden]

Hey Kris, really nice! I've been wanting to use something like this and put touch screen light controls for my bedroom. :-D Maybe someday I'll get around to doing it. In the mean time, I have a special request. Could you do a video about how to build a little tiny solar battery charger. I'm talking about those little solar panels that come in the yard lights you can pick up at Walmart for like $2. I've got a big pile of those old things and I am certain the solar cells are still good and could be useful for plenty of little DIY projects like a wireless smart potting soil moisture monitor, or wireless motion sensors.

Is there a way to add effects when moving from one menu to another in an OLED? Like the information on the screen gradually coming to the screen, or sliding from top to bottom?

[malcolmpalmer]

This error message appears when I try to compile "SliderV does not name a type"

[osamaahmed]

will be thankfull if u have some time to make it work with arduino .... great job dear .... thank yo

[gsrgsg]

Is this compatible with an Arduino board?

[orangepilite]

not bad bro. how can i adapt it for mcufriend_kbw?