Overview
Things
Story

Intro
Video Demonstration
Hardware: Initial Build
Hardware Updated
Programming
Artistic Images
Image to Code Conversion
Technical Info
References
Badge Capabilities : Build Something That Matters
Calligraphy on E-Paper

Published October 14, 2018 © Apache-2.0

Animated E-Paper Badge

An animated e-paper display badge for Hacksters.

BeginnerFull instructions provided2 hours3,370

The Badge of Add-On

BadgeLove!

Things used in this project

Hardware components

Infineon XMC2GO - industrial microcontroller kit

E Paper Display

SparkFun LiPo Battery 110 mAh

2cm x 8cm Proto Board

SparkFun 1N4148 Diode

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)

Story

Intro

E-paper displays are fantastic for visual art but not fast enough for video or animation. Yet, I wanted to animate something in black and white canvas in slow motion. So, I made this badge!

1 / 2 • Ribbon for hanging on neck

Video Demonstration

Animated real-time speed!

Hardware: Initial Build

To build the hardware, two pieces of 2cmx8cm protoboards are glued side by side. Next, the XMC2Go board, LiPo battery, and 1.54-inch e-paper display are placed on the top of the protoboards.

XMC2go (XMC1100 MCU board), paper display and battery

Inter-connections are made according to the schematic (below) and soldered with soldering iron.

Soldering and interconnection on backside

Hardware Updated

Following updates are made later to the badge :-

LiPo battery is placed under the display
ADC sense (voltage divider) 5 user push switches installed
Buzzer added for melody playback option with jumper to PWM pin
I/O pins (ADC 1, PWM, I2C, Serial & Gnd) are routed for further development

1 / 4 • PWM, ADC, I2C, Serial outputs (black female header under the display)

Programming

To program the system in Arduino IDE, the 2Go kit's board support must be added. This is done by following these steps:

Install and run Arduino IDE 1.8.7
Go to File > Preferences > Additional Board Manager URLs and paste https://github.com/Infineon/Assets/releases/download/current/package_infineon_index.json

Adding 2Go kit support on Arduino IDE

Now go to Tools > Board Manager > type "xmc" in search box and download board support files

Install board files for version 1.1.0

Next, Install Segger Link for communication between kit and IDE from here:

https://www.segger.com/downloads/jlink/JLink_Windows_beta.exe

Then, go to tools and set

Board: XMC1100XMC2Go

Serial Output Selection: On-board

Port: Port 4 (select whichever new port appears after plugging kit to usb )

Artistic Images

Following images are printed one after another to create the illusion!

Scroll to right faster to see the effect of animation.

1 / 14 • 1

Image to Code Conversion

Monochromatic Bitmap images of 200 x 200 pixels are converted to code with Image2Lcd program according to following settings.

Image 2 LCD

These settings are critical, any deviation from these settings (marked in red polygon) might corrupt/mirror/rotate image output.

Placing image data in code imagedata.cpp

Each image/frame of 200 x 200 pixels is converted to hex data and copied to arduino IDE for flashing in the xmc1100 mcu.

Updating the header file imagedata.h is also required.

Updating imagedata.h header file

Technical Info

The XMC2Go kit (XMC1100 mcu) has 16k RAM and 64k Flash for code.
Each image frame (200 x 200 pixel) require about 4k Flash
For the E-Paper display's memory buffer, 8k RAM is allocated
Maximum 13 Frames can be stored inside program memory
Power consumption during display update is 7.6 - 9.1 mA and during deep sleep 1.8 - 2.4 mA

RAM and FLASH Limit !

References

XMC2Go in Arduino: https://github.com/Infineon/XMC-for-Arduino
Segger J-Link: https://www.segger.com/downloads/jlink/
Demo Code: https://waveshare.com/wiki/1.54inch_e-Paper_Module
Image Source: https://daankusen.wordpress.com/2014/09/10/flying-is-easy/
Gif to Bitmap: https://ezgif.com/split
Bitmap to C : https://www.waveshare.com/wiki/File:Image2Lcd.7z
Mario Melody: https://www.hackster.io/jrance/super-mario-theme-song-w-piezo-buzzer-and-arduino-1cc2e4

2Go Kit Modification for power source selection and LiPo Charging :- https://www.infineon.com/dgdl/Board_Users_Manual_XMC_2Go_Kit_with_XMC1100_R1.0.pdf

Power Selection between USB and LiPo

Badge Capabilities : Build Something That Matters

The badge says " Build Something That Matters " It's not just a badge. It will be used to make another project. The badge has following capabilities :

Low Power Display Project
Midi Playback
I2C/ADC/Serial/PWM Breakout for add-on board support
5 User button for Game Development and Menu Scrolling
USB Charging for LiPo Battery

Calligraphy on E-Paper

I was wondering, how cool it would be to do some calligraphy on large touch e-paper, something like this :

Darkness of Heart

Code

#include <SPI.h>
#include "epd1in54.h"
#include "epdif.h"
#include "epdpaint.h"
#include "imagedata.h"



int COLORED  = 0; // White in Black
int UNCOLORED = 1;  // Black in White

unsigned char image[8192];   // takes 5k-8k RAM  
//////////////////////////////////////////////////
// width must be multiple of 8
Paint paint(image, 0, 0);     
Epd epd;                     
//////////////////////////////////////////////////////

void setup() 
{
    flush_epd();  
///// Init Full Display Update ///////////
  if (epd.Init(lut_full_update) != 0) 
  {return;}  
///// Init Partial Display Update ////////
  if (epd.Init(lut_partial_update) != 0) 
  {return;}
////////// Clears Up Full Disp ///////////
// bit set = white, bit reset = black
  epd.ClearFrameMemory(0xFF);   
  epd.DisplayFrame();
  epd.ClearFrameMemory(0xFF);   
  epd.DisplayFrame();

}



void loop() 
{

 ////////////// Static Image /////////////////////////////////////////      
  epd.SetFrameMemory(IMAGE_DATA1);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA2);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA3);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA4);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA5);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA6);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA7);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA8);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA9);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA10);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA12);
  epd.DisplayFrame();
    /*
  epd.SetFrameMemory(IMAGE_DATA13);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA14);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA15);
  epd.DisplayFrame();
  epd.SetFrameMemory(IMAGE_DATA16);
  epd.DisplayFrame();
*/
// delay(1000);
// flush_epd();
 
} // loop ends here //


// clean up dark spots on epaper display
void flush_epd (void)
{
  if (epd.Init(lut_full_update) != 0) 
  {return;}
  epd.ClearFrameMemory(0xFF);   
  epd.DisplayFrame();
  epd.ClearFrameMemory(0xFF);   
  epd.DisplayFrame();
  
}

Credits

Shahariar

71 projects • 262 followers

"What Kills a 'Great life' is a 'Good Life', which is Living a Life Inside While Loop"

Comments

Awards

The Badge of Add-On

BadgeLove!

Animated E-Paper Badge

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Intro

Video Demonstration

Hardware: Initial Build

Hardware Updated

Programming

Artistic Images

Image to Code Conversion

Technical Info

References

Badge Capabilities : Build Something That Matters

Calligraphy on E-Paper

Schematics

pinout

wiring

Code

Animated EPD Badge

Full Code

ADC, PWM, Sleep, RTC, RAM test code

Mario melody play on buzzer

Hackster Logo and Animation

IO Test

Credits

Shahariar

Comments

Awards

Embed the widget on your own site

Animated E-Paper Badge

Animated E-Paper Badge

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Intro

Video Demonstration

Hardware: Initial Build

Hardware Updated

Programming

Artistic Images

Image to Code Conversion

Technical Info

References

Badge Capabilities : Build Something That Matters

Calligraphy on E-Paper

Schematics

pinout

wiring

Code

Animated EPD Badge

Full Code

ADC, PWM, Sleep, RTC, RAM test code

Mario melody play on buzzer

Hackster Logo and Animation

IO Test

Credits

Shahariar

Comments

Awards

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