YOK150MMI-Q1 1.5inch OLED Module SH1106 Display with 128x128 Resolution IIC Interface for STM32, C51,Arduino, Raspberry Pi and MSP430 platforms

NOTE:

1. This module supports IIC slave device address switching (shown in red box in Picture 4), as follows:

A. Solder the 0x78 side resistance, disconnect the 0x7A side, then select the0x78 slave address (default);

B. Solder the 0x7A side resistance, disconnect the 0x78 side, then select the 0x7A slave address;

2. The hardware switches the IIC from the set address, and the software also

needs to be modified accordingly. For the specific modification method, see the following IIC slave device address modification instructions.

Hardware Configuration

Since the OLED can self-illuminate,the OLED module has no backlight control circuit and only the OLED display control circuit and the IIC slave device address selection control circuit (as shown in the red box of Figure 3).

The OLED display control circuit is mainly used to control OLED display, including chip selection, reset, and data and command transmission control.

The IIC slave device address selection control circuit is used to select different slave device addresses.

DC-DC boost circuit is used to provide stable power supply.

The OLED module adopts IIC communication mode, and the hardware is configured with two pins: SCL (IIC data pin) and SDA (IIC clock pin). The IIC data transfer can be completed by controlling the two pins according to the IIC working timing.