Overview

Parameters

• Refresh time: The refresh time is based on experimental test data, and there may be errors in the actual refresh time. The actual results shall prevail. There will be a flickering effect during the global refresh process, which is a normal phenomenon.
  

Usage

Function Introduction

1. NEXT button: The function of this button is to switch between images. Pressing it will switch to the next image. Please note that if there is a change in the number or name of the images on the memory card, the index will be regenerated and played from the first image.
2. AUTO-NEXT switch: This switch is used to switch the electronic frame's operating mode. By default, it is "OFF", in which case the RTC signal will not be processed. To switch to automatic mode, please turn the switch to the "ON" position. In automatic mode, the RTC signal will trigger the switching of images. The trigger interval can be modified by the program, with the default set to 12 hours. Please note that the image switch button is still valid in automatic mode.
3. ACT indicator light: It will flash three times before each refresh if the self-check is normal; it will flash quickly when reading or writing to the memory card.
4. PWR indicator light: It will flash five times during self-check for low battery before each refresh; it will light up when charging the lithium battery and turn off after it is fully charged.

Quick Usage

There is a limit to the number of factory firmware, just follow the firmware flashing tutorial below to refresh the firmware again.

1. First of all, prepare the picture to be displayed, the electronic photo frame only supports 24-bit BMP format images, and the resolution must be 480*800 or 800*480. For picture production, please refer to the next section Picture Production, and here are some sample pictures that work well, you can click here to download.
2. Then prepare a FAT32 memory card, create a new "pic" folder in the root directory of the card, and place the images to be displayed in it (with file names less than 100 characters in length, theoretically able to store hundreds of thousands of files)
3. Next, insert the memory card into the memory card slot of the electronic photo frame, please refer to: TF card removal and installation
4. Finally, the photo frame can be powered by either a 5V Type-C USB interface or a 3.7V lithium battery. Note: If you want to use automatic mode, please insert the button battery on the RTC chip or use USB power.

Note: MAC will generate hidden files when copying pictures or folders, and then our program will also read these hidden files, which will eventually cause the program to get stuck. Delete these hidden files in the pic folder, and delete the fileList.txt and index txt files in the root directory of the TF card to solve the problem.

Picture Production

• To make a scatter plot with PS and other tools, please refer to: E-Paper Floyd-Steinberg
• Use the tools we have written to convert images, applications and source codes: Six color dithering image conversion tool
  • The program converts images to appropriate resolutions and optimizes them using dithering algorithms, supports most formats of images, recognizes the orientation of images and automatically stretches and crops them
  • How to use: Drag and drop the picture directly onto "convert.exe" to convert a single image, or put all the images into a folder and then double-click "converterTo6color_all.cmd" for batch conversion
  • Note: This program is developed and open source for the convenience of customers only, and we do not provide technical support for it

Tools for Windows

• Single image conversion
  

Drag the image onto convert.exe

• Batch conversion of images
  

Put the images, convert.exe, and converterTo6color_all.cmd in a folder, and then double-click converterTo6color_all.cmd

Tools for MAC

Put the images, convert, and converterTo6color_all in a folder
Open the terminal and enter the corresponding folder

cd xxxx/xxx/xxx/

• Conversion of a single image
  

Enter the command to grant the convert executable permission

sudo chmod +x convert

Image conversion

./convert image name 

• Batch conversion of images
  

You need to perform permission operations on the convert file first
Enter a command to give converterTo6color_all.sh executable permissions

sudo chmod +x converterTo6color_all.sh

Image conversion

./converterTo6color_all.sh

Development Description

• Note: This program is open source and does not provide technical support (please feel free to provide feedback if there are any bugs).
• The program is written based on Rpi Pico's C++SDK, compiled using CMAKE, and theoretically supports multiple platforms. Please set up the relevant environment yourself.
• Windows environment setup
• Raspberry Pi environment setup

Timing Modification

• Directly modify the alarmTime struct in main.c
• The modification position is shown in the figure, which means that it is refreshed every 24 hours. If you have other needs, you can modify other parameters in the structure

Resources

Documents

• Display datasheet
• Pico2 Getting Started
• Pico2 C SDK User Manual
• Pico2 Python SDK User Manual
• Pico FAQs

Demo

• Demo source code
• Github

Related Documents

• Sample images
• Six color dithering image conversion tool
• Dimensions

Development Resources

• E-Paper Floyd-Steinberg
• E-Paper API Analysis
• Zimo221.7z
• E-Paper Font Tutorial
• Image2Lcd.7z
• Image2Lcd Image Modulo
• pwnagotchi Usage

FAQ

Support

Monday-Friday (9:30-6:30) Saturday (9:30-5:30)

Mobile: +86  13434470212

Email: services01@spotpear.com