Welcome to IoTForums.com Community
Register now to participate in discussions, ask questions and share your knowledge on internet of things and automation! Feel free to sign up today.
Register Now

E-ink paper screen on RTL8722 Arduino

Michael

Member
Jun 1, 2020
17
5
11
Singapore
Display Images on E-Paper RTL8722

In this example, use the Ameba RTL8722 module connects to a Waveshare 2.9inch e-Paper module to display a few QR codes. The display uses the flexible substrate as a base plate, with an interface and a reference system design.

Firstly, you need to prepare a picture/photo in the format of 296×128 pixels. It is easy to find a photo resizing tool online and download the generated image in JPG format. Then link all hardware and upload code into the hardware. Upon successfully upload the sample code and press the reset button, you need to wait for around 1~2 seconds for the e-Paper module to fresh its screen. Then the screen will start to display an image for 5 seconds first, then 3 different QR codes will be displayed every 5 seconds (showing in the screenshot below, y may scan the QR codes and find out more information if you wish to). Lastly, a gif in which forms of 3 frames will be displayed for a few seconds.
3.png
5.jpg
 
  • Like
Reactions: WebMaster

Michael

Member
Jun 1, 2020
17
5
11
Singapore
  • Thread Starter Thread Starter
  • #2
The second demo is controlling the pixel directly. In this example, we use the Ameba RTL8722 module connects to a Waveshare 2.9inch e-Paper module to display a few QR codes. The display uses the flexible substrate as the base plate, with interface and a reference system design.

The QR code is generated from URL and has restructured into hex data. The data is sent to the screen to directly control the pixel and display.
Please, Log in or Register to view URLs content!
5.jpg
3.png
jojo-jojobizarreadventure-tobecontinued-continued-arrow-jojos-bizarre-adventure-to-be-continue...png
 

Michael

Member
Jun 1, 2020
17
5
11
Singapore
  • Thread Starter Thread Starter
  • #3
The third demo is display the texts. In this example, we use the Ameba RTL8722 module connects to a Waveshare 2.9inch e-Paper module to display a few texts. The display uses the flexible substrate as the base plate, with interface and a reference system design.

The text is generated from customized libraries and has restructured into hex data. The data is sent to the screen to directly control the pixel and display.
Please, Log in or Register to view URLs content!
5.jpg
jojo-jojobizarreadventure-tobecontinued-continued-arrow-jojos-bizarre-adventure-to-be-continue...png
 
  • Like
Reactions: WebMaster

Michael

Member
Jun 1, 2020
17
5
11
Singapore
  • Thread Starter Thread Starter
  • #4
This is the last demo of the Eink.

Ameba-D supports low power modes which are deepsleep mode. Deepsleep mode turns off most of the system power domain. The power consumptions of core module in DeepSleep Mode is around 7uA to 8uA compare to normal state around 22mA. This example gives demo of system switch between “working” and “sleep”(power save).Using DHT sensor to read data and display on Eink screen when system is awake. After 5 seconds system auto enter DeepSleep Mode for power save. System will wake up by wakeup source.( Aon timer, Aon Pins or RTC timer).
Please, Log in or Register to view URLs content!
MicrosoftTeams-image.jpg
 

Michael

Member
Jun 1, 2020
17
5
11
Singapore
  • Thread Starter Thread Starter
  • #5
I am starting a new project using Eink screen. Guys, anybody could give me some suggestions about how to use RFID by cell phone?
 

Log in

or Log in using