Name: 2.13inch e-Paper Cloud Module, 250×122, WiFi
Brand: Waveshare
SKU: 2.13inch-e-paper-cloud-module

Logical pinout · physical placement not verified

VCCe-Paper connector VCC
Power input for the e-Paper cloud module, source table states 3.3V.
Type · PowerVoltage · 3.3V
GNDe-Paper connector GND
Ground reference for the module.
Type · Ground
KEYe-Paper connector KEY
User button signal, mapped by Waveshare to ESP32 GPIO12.
Type · GPIO
SCKe-Paper connector SCK
SPI clock input, mapped by Waveshare to ESP32 GPIO13.
Type · SPI
DINe-Paper connector DIN
SPI MOSI data input, mapped by Waveshare to ESP32 GPIO14.
Type · SPI
CSe-Paper connector CS
SPI chip select, low active, mapped by Waveshare to ESP32 GPIO15.
Type · SPI
BUSYe-Paper connector BUSY
Busy status signal indicating whether the e-Paper is busy, mapped by Waveshare to ESP32 GPIO25.
Type · GPIO
RSTe-Paper connector RST
Reset signal, low active, mapped by Waveshare to ESP32 GPIO26.
Type · Control
DCe-Paper connector DC
Data/command control, low for command and high for data, mapped by Waveshare to ESP32 GPIO27.
Type · GPIO
ADCe-Paper connector ADC
ADC data input. Waveshare states detected voltage is one third of the battery voltage, mapped to ESP32 GPIO36.
Type · Analog

Pin	Position	Type	Function	Voltage
VCC	e-Paper connector VCC	Power	Power input for the e-Paper cloud module, source table states 3.3V.	3.3V
GND	e-Paper connector GND	Ground	Ground reference for the module.
KEY	e-Paper connector KEY	GPIO	User button signal, mapped by Waveshare to ESP32 GPIO12.
SCK	e-Paper connector SCK	SPI	SPI clock input, mapped by Waveshare to ESP32 GPIO13.
DIN	e-Paper connector DIN	SPI	SPI MOSI data input, mapped by Waveshare to ESP32 GPIO14.
CS	e-Paper connector CS	SPI	SPI chip select, low active, mapped by Waveshare to ESP32 GPIO15.
BUSY	e-Paper connector BUSY	GPIO	Busy status signal indicating whether the e-Paper is busy, mapped by Waveshare to ESP32 GPIO25.
RST	e-Paper connector RST	Control	Reset signal, low active, mapped by Waveshare to ESP32 GPIO26.
DC	e-Paper connector DC	GPIO	Data/command control, low for command and high for data, mapped by Waveshare to ESP32 GPIO27.
ADC	e-Paper connector ADC	Analog	ADC data input. Waveshare states detected voltage is one third of the battery voltage, mapped to ESP32 GPIO36.

Logical pinout · physical placement not verified

Pin details

10 connections

VCC
Power input for the e-Paper cloud module, source table states 3.3V.
PowerVoltage · 3.3V
e-Paper connector VCC
GND
Ground reference for the module.
Ground
e-Paper connector GND
KEY
User button signal, mapped by Waveshare to ESP32 GPIO12.
GPIO
e-Paper connector KEY
SCK
SPI clock input, mapped by Waveshare to ESP32 GPIO13.
SPI
e-Paper connector SCK
DIN
SPI MOSI data input, mapped by Waveshare to ESP32 GPIO14.
SPI
e-Paper connector DIN
CS
SPI chip select, low active, mapped by Waveshare to ESP32 GPIO15.
SPI
e-Paper connector CS
BUSY
Busy status signal indicating whether the e-Paper is busy, mapped by Waveshare to ESP32 GPIO25.
GPIO
e-Paper connector BUSY
RST
Reset signal, low active, mapped by Waveshare to ESP32 GPIO26.
Control
e-Paper connector RST
DC
Data/command control, low for command and high for data, mapped by Waveshare to ESP32 GPIO27.
GPIO
e-Paper connector DC
ADC
ADC data input. Waveshare states detected voltage is one third of the battery voltage, mapped to ESP32 GPIO36.
Analog
e-Paper connector ADC

Start wiring

SPI · I2C · 3.3 V · Bare

Verify supply voltage and logic levels before powering up.

Module pins: VCC, GND, SCK, DIN, CS, ADC. Schematik maps them to your board in the app.

E-paper

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