1.54inch e-Paper Module

The 1.54inch e-Paper is updated to 1.54inch e-Paper V2 version. Codes of the two version are not compatible with each other. Except for the controller and codes, the new V2 version is exactly the same as the old one. If you are users of the old version, you need to update your codes as well for your new order.

Interfaces

VCC	3.3V
GND	GND
DIN	SPI MOSI
CLK	SPI SCK
CS	SPI chip select (Low active)
DC	Data/Command control pin (High for data, and low for command)
RST	External reset pin (Low for reset)
BUSY	Busy state output pin (Low for busy)

Working principle

This product is an E-paper device adopting the image display technology of Microencapsulated Electrophoretic Display, MED. The initial approach is to create tiny spheres, in which the charged color pigments are suspending in the transparent oil and would move depending on the electronic charge. The E-paper screen display patterns by reflecting the ambient light, so it has no background light requirement. Under sunshine, the E-paper screen still has high visibility with a wide viewing angle of 180 degrees. It is the ideal choice for E-reading.

Communication protocol

Note: Different from the traditional SPI protocol, the data line from the slave to the master is hidden since the device only has a display requirement.

CS is slave chip select, when CS is low, the chip is enabled.
DC is data/command control pin, when DC = 0, write command, when DC = 1, write data.
SCLK is the SPI communication clock.
SDIN is the data line from the master to the slave in SPI communication.

SPI communication has data transfer timing, which is combined by CPHA and CPOL.

CPOL determines the level of the serial synchronous clock at idle state. When CPOL = 0, the level is Low. However, CPOL has little effect to the transmission.
CPHA determines whether data is collected at the first clock edge or at the second clock edge of serial synchronous clock; when CPHL = 0, data is collected at the first clock edge.

There are 4 SPI communication modes. SPI0 is commonly used, in which CPHL = 0, CPOL = 0.

As you can see from the figure above, data transmission starts at the first falling edge of SCLK, and 8 bits of data are transferred in one clock cycle. In here, SPI0 is in used, and data is transferred by bits, MSB first.

Documentation

Demo code

Github

Demo video

1.54inch e-paper demo video

Datasheets

Related Resources

This is a post in Arduino Form about our SPI e-Paper thanks to ZinggJM, maybe you want to refer to.

Waveshare e-Paper display with SPI

Question:

Working requirements of e-Paper?

Answer:

Two-color B/W e-paper
- 【Working】Temperature: 0~50°C; Humidity: 35%~65%RH
- 【Storage】Temperature: ≤30°C; Humidity: ≤55%RH; Max storage time: 6 months
- 【Transport】Temperature: -25~70°C; Max transport time: 10 days
- 【Unpack】Temperature: 20°C±5°C; Humidity: 50%RH±5%RH; Max storage time: Should be assembled in 72h
Three-Color e-Paper
- 【Working】Temperature: 0~40°C; Humidity: 35%~65%RH
- 【Storage】Temperature: ≤30°C; Humidity: ≤55%RH; Max storage time: 3 months
- 【Transport】Temperature: -25~60°C; Max transport time: 10 days
- 【Unpack】Temperature: 20°C±5°C; Humidity: 50%RH±5%RH; Max storage time: Should be assembled in 72h

When store three-color e-Paper, please refresh it to white, and keep the screen upward. Note that you need to update it at least every three months.

Question:

What do you need to note about e-Paper refreshing?

Answer:

Refresh mode
- Full refresh: e-Paper flicker when full refreshing to remove ghost image for best display.
- Partial refresh: It don't flicker if you use partial refresh (only some of the two-color e-paper support partial refresh). Note that you cannot use Partial refresh all the time, you should full refresh e-paper regularly, otherwise, ghost problem will get worse even damage.
Refresh rate
- When using, you should set the update interval at least 180s.(except Partial supportable types)
- Please set the e-Paper to sleep mode or power off it directly, otherwise, the e-Paper is damaged because of working in high voltage for long time.
- You need to update the content of three-color e-Paper at least one time every 24h to avoid from burn-in problem.
Working place
We recommend you to use the e-Paper indoor. If you need to set the e-paper outdoor, Please place the e-paper in shadow and protect it from UV. When you designed you e-paper product, you should take care about the working situation like temperature, humidity, etc.

Question:

How much could the flexible e-paper be bended

Answer:

The IC part of e-Paper cannot be bended, you can bend the display area in degree larger than 60°C

Question:

Why the e-Paper cant work with Arduino?

Answer:

The I/O level of Arduino is 5V, and the e-Paper should be driven with 3V3. If your Arduino cant drive the e-Paper successfully, please try to convert the level to 3.3V

You can also try to connect the Vcc pin to the 5V of Arduino to see whether the e-Paper works, but we recommend you not to use 5V for a long time.

Question:

Why does the color of e-Paper look a little black or grey?

Answer:

You can try to change the value of Vcom on demo codes.

Question:

Three-color e-paper looks more red/yellow than the picture on website?

Answer:

Because of different batch, some of them have aberration. Store the e-Paper right side up will reduce it. And if the e-Paper didn't be refreshed for long time, it will become more and more red/yellow. Please use the demo code to refresh the e-paper for several times in this case.

Question:

Why my e-paper has ghosting problem after working for some days

Answer:

Please set the e-paper to sleep mode or disconnect it if you needn't refresh the e-paper but need to power on your development board or Raspberry Pi for long time.Otherwise, the voltage of panel keeps high and it will damage the panel

Question:

Why the FPC of the e-Paper is broken after using for some times?

Answer:

Please make sure you have used it in correct way.

To：

Dear Customers, There may be a lag of several hours before we could process your order, depending on the time difference between your location and ours. Sincerely hoping your understanding!

Email(support)

services01@spotpear.com

TAG： Raspberry Pi 5 Programmable Magnetic Encoder Third-party library configuration Raspberry Pi 3.97 inch e-Paper link (G) RYBW 800x480 For Arduino / Jetson / STM32 /ESP32 MPS2280 POE Raspberry Pi 5 PCIe to M.2 NVMe SSD Adapter Board HAT Pi5 2280/2242/2230 Raspberry Pi Robot Dog Wavego Pro 12 quadruped ESP32 ESP-NOW color recognition and self-balancing control ESP32-S3 ST7789 Industrial CAN FD ETH RJ45 bidirectional converter CAN2.0A/2.0B Raspberry Pi 7 inch QLED Quantum Dot Display 1024x600 Capacitive Touchscreen For Computer PC/Jetson/Game Raspberry Pi Industrial 10.1 inch DSI LCD HMI TouchScreen MIPI Display 1280x800 10.1inch One-Body PC With Front Camera For Pi 4/5 spotpear Raspberry Pi USB Camera 5MP OS05A10 Distortion-Free USB 2.0 For Jeston RDK Jetson Orin 4G/3G/2G expansion board GNSS GPS SIM7600G-H-M.2 UART Serial Server ESP32 IR Thermal Imaging Camera Milk-V Duo S UART Serial Console ESP32 Mini TV ESP32-S3 1.14inch LCD ESP32-S3FH4R2 7inch-USB-Monitor user guide

Price：

$15.89

Model：

1.54inch-e-Paper-Module

1.54inch E Ink display module, black, white, 200x200

TAG： Raspberry Pi 5 PCIe to M.2 SSD Luckfox Titan RK3576 IMX415 IR-CUT Camera 2.1inch Rotary screen Raspberry Pi Camera 1.6MP IMX296 Global Shutter Ideal for Fast Motion Photography Raspberry Pi IR-CUT 2MP Camera with IMX291 Starlight Sensor Jetson Orin NX 8GB AI 70Tops Embedded Edge Systems NVIDIA JETSON NANO MINI Milk V AI Machine Vision Kit OAK D S2 POE JPEG Encoder 12MP 4TOPS OpenCV Camera UNO-R4 FM Radio assembly DIY kit STEM Educational soldering Project for Beginners &amp; Adult ESP32 IR Thermal Imaging Camera ESP32 S3 AV to LVDS Raspberry Pi 9inch DSI MIPI LCD TouchScreen Display 9inch 720x1280 For Luckfox Lyra RK3506/ESP32-P4/Luckfox Omni3576 ESP32-S3 Relay 8-Channel IOT WiFi Bluetooth Arduino WROOM Raspberry Pi 18.5inchFHD LCD 1920x1080 Capacitive TouchScreen Display ESP32 S3 AI Voice Chat Robot 1.54inch Development Board with 1.54 inch LCD Display Screen Deepseek Raspberry Pi Zero RJ45 GC9A01