Name: Monochrome 1.3" 128x64 SH1106G SPI OLED Display
Brand: Adafruit
SKU: 5228

Logical pinout · physical placement not verified

C2P1
Positive terminal of the flying boost capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
Type · Power
C2N2
Negative terminal of the flying boost capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
Type · Power
C1P3
Positive terminal of the flying inverting capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
Type · Power
C1N4
Negative terminal of the flying inverting capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
Type · Power
VBAT5
Power supply for the internal DC/DC converter buffer circuit.
Type · PowerVoltage · VBAT absolute maximum -0.3 V to 5 V; DC characteristics list internal DC/DC enable supply range from the module datasheet.
VSS6
Ground/reference for the logic circuit.
Type · GroundVoltage · 0 V reference.
VDD7
Logic supply input for the OLED controller/module.
Type · PowerVoltage · Logic supply VDD 1.65 V to 3.3 V per datasheet DC characteristics.
CS#8
Active-low SPI chip-select input; MCU communication is enabled only when CS# is pulled low.
Type · GPIOVoltage · Logic-level input referenced to VDD.
RES#9
Active-low reset input; pulling low initializes the chip, keep high during normal operation.
Type · GPIOVoltage · Logic-level input referenced to VDD.
DC#10
Data/command control input for the SPI interface; high selects display data, low selects command register transfer.
Type · GPIOVoltage · Logic-level input referenced to VDD.
SCLK11
Serial clock input for the 4-wire SPI interface.
Type · SPIVoltage · Logic-level input referenced to VDD.
SDIN12
Serial data input for the SPI interface; data is latched on SCLK and interpreted with D/C#.
Type · GPIOVoltage · Logic-level input referenced to VDD.
IREF13
Segment current reference for brightness adjustment; datasheet specifies a resistor to VSS and 12.5 µA maximum reference current.
Type · Analog
VCOMH14
Voltage output high level for COM signals; datasheet specifies a capacitor between VCOMH and VSS.
Type · Analog
VCC15
Most positive OLED panel supply pin; connect external source when converter is not used, or stabilisation capacitor to VSS when converter is used.
Type · PowerVoltage · Display supply VCC absolute maximum 0 V to 14 V; typical operation shown as 12 V in datasheet.
VSS16
Second ground/reference pin for the logic circuit.
Type · GroundVoltage · 0 V reference.

Pin	Position	Type	Function	Voltage
C2P	1	Power	Positive terminal of the flying boost capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
C2N	2	Power	Negative terminal of the flying boost capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
C1P	3	Power	Positive terminal of the flying inverting capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
C1N	4	Power	Negative terminal of the flying inverting capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
VBAT	5	Power	Power supply for the internal DC/DC converter buffer circuit.	VBAT absolute maximum -0.3 V to 5 V; DC characteristics list internal DC/DC enable supply range from the module datasheet.
VSS	6	Ground	Ground/reference for the logic circuit.	0 V reference.
VDD	7	Power	Logic supply input for the OLED controller/module.	Logic supply VDD 1.65 V to 3.3 V per datasheet DC characteristics.
CS#	8	GPIO	Active-low SPI chip-select input; MCU communication is enabled only when CS# is pulled low.	Logic-level input referenced to VDD.
RES#	9	GPIO	Active-low reset input; pulling low initializes the chip, keep high during normal operation.	Logic-level input referenced to VDD.
DC#	10	GPIO	Data/command control input for the SPI interface; high selects display data, low selects command register transfer.	Logic-level input referenced to VDD.
SCLK	11	SPI	Serial clock input for the 4-wire SPI interface.	Logic-level input referenced to VDD.
SDIN	12	GPIO	Serial data input for the SPI interface; data is latched on SCLK and interpreted with D/C#.	Logic-level input referenced to VDD.
IREF	13	Analog	Segment current reference for brightness adjustment; datasheet specifies a resistor to VSS and 12.5 µA maximum reference current.
VCOMH	14	Analog	Voltage output high level for COM signals; datasheet specifies a capacitor between VCOMH and VSS.
VCC	15	Power	Most positive OLED panel supply pin; connect external source when converter is not used, or stabilisation capacitor to VSS when converter is used.	Display supply VCC absolute maximum 0 V to 14 V; typical operation shown as 12 V in datasheet.
VSS	16	Ground	Second ground/reference pin for the logic circuit.	0 V reference.

Logical pinout · physical placement not verified

Pin details

16 connections

C2P
Positive terminal of the flying boost capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
Power
1
C2N
Negative terminal of the flying boost capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
Power
2
C1P
Positive terminal of the flying inverting capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
Power
3
C1N
Negative terminal of the flying inverting capacitor for the OLED module charge-pump circuit, from the datasheet pin definition.
Power
4
VBAT
Power supply for the internal DC/DC converter buffer circuit.
PowerVoltage · VBAT absolute maximum -0.3 V to 5 V; DC characteristics list internal DC/DC enable supply range from the module datasheet.
5
VSS
Ground/reference for the logic circuit.
GroundVoltage · 0 V reference.
6
VDD
Logic supply input for the OLED controller/module.
PowerVoltage · Logic supply VDD 1.65 V to 3.3 V per datasheet DC characteristics.
7
CS#
Active-low SPI chip-select input; MCU communication is enabled only when CS# is pulled low.
GPIOVoltage · Logic-level input referenced to VDD.
8
RES#
Active-low reset input; pulling low initializes the chip, keep high during normal operation.
GPIOVoltage · Logic-level input referenced to VDD.
9
DC#
Data/command control input for the SPI interface; high selects display data, low selects command register transfer.
GPIOVoltage · Logic-level input referenced to VDD.
10
SCLK
Serial clock input for the 4-wire SPI interface.
SPIVoltage · Logic-level input referenced to VDD.
11
SDIN
Serial data input for the SPI interface; data is latched on SCLK and interpreted with D/C#.
GPIOVoltage · Logic-level input referenced to VDD.
12
IREF
Segment current reference for brightness adjustment; datasheet specifies a resistor to VSS and 12.5 µA maximum reference current.
Analog
13
VCOMH
Voltage output high level for COM signals; datasheet specifies a capacitor between VCOMH and VSS.
Analog
14
VCC
Most positive OLED panel supply pin; connect external source when converter is not used, or stabilisation capacitor to VSS when converter is used.
PowerVoltage · Display supply VCC absolute maximum 0 V to 14 V; typical operation shown as 12 V in datasheet.
15
VSS
Second ground/reference pin for the logic circuit.
GroundVoltage · 0 V reference.
16

Start wiring

I2C · SPI · 3.3 – 5 V · Breakout

Confirm the data interface matches your host board.

Module pins: C2P, C2N, C1P, C1N, VBAT, VDD, VCC, VSS. Schematik maps them to your board in the app.

OLED

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