Product description: E-paper E-Ink - module with I2C display - 91 segments 1.9'' - Waveshare 22689
A 1.9" e-paper segment display consisting of 91 segments . The passive reflective screen is able to display a black and white image, the viewing angle is over 170 °. It uses the I2C interface for communication. E-paper screens are characterized by very low power consumption, basically energy is only required for refreshing The module supports partial refreshing, the time of which is 0.3 s Segment e-paper displays are perfect for displaying values from temperature and humidity sensors , air humidifiers, etc. Module works with a voltage of 3.3 V and 5 V.
E-paper E-Ink - module with I2C display - 91 segments 1.9'' - Waveshare 22689.
Pins of the e-paper segment display module.
Main features of segmented e-paper screen
- No backlight, it displays the last content for a long time, even when the power is disconnected
- Very low power consumption, power only required for refreshing
- I2C interface, compatible with Arduino , Raspberry Pi , STM32 , etc.
- Built-in MOS voltage regulator, 3.3 V and 5 V power supply
The manufacturer has prepared a detailed guide for Arduino, Raspberry Pi and STM32 users with connection examples and program codes.
What is the "e ink e paper" display?
The e-paper display, also known as e-paper display, uses electrophoretic microcapsule technology to present data. This means that it mimics the appearance of standard ink found on traditional paper. This type of technology is extremely user-friendly - screens do not emit blue glow, are passively reflective and provide a wide viewing angle. All these features mean that our eyes do not get tired so much during use, and reading is even more enjoyable than before.
E-paper display. 
Example of connection with Arduino Uno.Pins of the e-Ink display module
The e-paper display module uses the I2C interface to communicate with the microcontroller. Thanks to the applied voltage regulator, it can be powered with 3.3 V or 5 V.
- VCC - supply voltage
- GND - system ground
- SDA - data line of the I2C bus
- SCL - clock line of the I2C bus
- RST - reset, activated by low state
- BUSY - output pin of busy state, activated by high state
e-paper display specification
- Supply voltage: 3.3 V or 5 V
- Interface: I2C
- Number of segments: 91
- Display color: black and white
- Grayscale: 2
- Partial refresh time: 0.3 sec
- Full refresh time: 2 sec
- Refresh power consumption: less than 5mW (typical)
- Standby current consumption: less than 0.01 uA (almost none)
- Viewing angle: over 170°
Kit contents
- E-paper E-Ink - module with I2C display - 91 segments 1.9'' - Waveshare 22689
- Connecting wire
Kit contents.
