S100 Slave - Display 0.96


The S100 Slave - Display 0.96 module is a certified Rhomb.io module with a 0.96" OLED display controlled by I2C interface, a good choice to take a quick look about the working system information or to display any type of interest data, simple graphics or text information.

The next figure shows a 3D view for the S100 Slave - Display 0.96.

S100 Slave - Display 0.96 Top.png

           S100 Slave - Display 0.96 Bottom.png


  • Real time system information
  • Low power display when there's no screen present

Module specification

The S100 Slave - Display 0.96 mounts a low power OLED display configured to be controlled by I2C interface. Despite of its small size, it is very readable due the high contrast of the OLED technology. The display is made of 128x64 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast.

The following figure identifies the main components onboard:

S100 Slave - Display 0.96 Description Top.png

The next figure shows the block diagram for the S100 Slave - Display 0.96:

S100 Slave - Display 0.96 Block Diagram.png
Display OLED Key Features
0.96" OLED display
128x64 pixels
High contrast
No backlight required
I2C control
Op. Voltage: 2.8 V to 3.3 V
Op. Temperature: -40 ºC to +85 ºC

User Interfaces

The following table indicates the available serial interfaces of the Rhomb.io standard used in this module. This table relates the interfaces of the Rhomb.io standard with the net names of the schematic and with the components to which they are connected.

Rhomb.io Interface Schematic Signal Component Component Pin
I2C-A I2C-A_SCL Display 0.96" (H1) D0/SPI_SCLK/I2C_SCK
I2C-A_SDA Display 0.96" (H1) D1/SPI_SDIN/I2C_SDA

GPIOs and Control Signals

The following table summarizes the GPIOs and Control Signals used on the S100 Slave - Display 0.96. This table relates the signals of the Rhomb.io standard with the net names of the schematic and with the components to which they are connected.

Rhomb.io Signal Schematic Signal Component Component Pin Comments
#RESET_IN #RESET_IN Display 0.96" (H1) #RES SJ11 must be closed
1WIRE 1WIRE ID Memory (U5) IO -
  • 1WIRE: This signal can be used to read the ID Memory.

The location of the SJ11 solder-jumpers is shown in the following image:

S100 Slave - Display 0.96 Solder-Jumpers.png


The S100 Slave - Display 0.96 use the 3.3V rail. Make sure this rail is enabled on the motherboard you are going to plug this module. See the display datasheet to find more information about power consumption.



Click the image below to download the schematic files.

Bill Of Materials

Click the image below to download the BOM files.

Fabrication Data

Click the image below to download the fabrication files.

Mechanical Specifications

S100 Master - ESP32 + Display 0.96 v1.0 (PR) Dimensions.png


  • Precaution against Electrostatic Discharge. When handling Rhomb.io products, ensure that the environment is protected against static electricity. Follow the next recommendations:
  1. The users should wear anti-static clothing and use earth band when manipulating the device.
  2. All objects that come in direct contact with devices should be made of materials that do not produce static electricity that would cause damage.
  3. Equipment and work table must be earthed.
  4. Ionizer is recommended to remove electron charge.
  • Contamination. Be sure to use semiconductor products in the environment that may not be exposed to dust or dirt adhesion.
  • Temperature/Humidity. Semiconductor devices are sensitive to environment temperature and humidity. High temperature or humidity may deteriorate semiconductor devices characteristics. Therefore avoid storage or usage in such conditions.
  • Mechanical Shock. Care should be exercised not to apply excessive mechanical shock or force on the connectors and semiconductors devices.
  • Chemical. Do not expose semiconductor device to chemical because reaction to chemical may cause deterioration of device characteristics.
  • Light Protection. In case of non-EMC (Epoxy Molding Compound) package, do not expose semiconductor IC to strong light. It may cause devices malfunction. Some special products which utilize the light or have security function are excepted from this specification.
  • Radioactive, Cosmic and X-ray. Semiconductor devices can be influenced by radioactive, cosmic ray or X-ray. Radioactive, cosmic and X-ray may cause soft error during device operation. Therefore semiconductor devices must be shielded under environment that may be exposed to radioactive, cosmic ray or X-ray.
  • EMS (Electromagnetic Susceptibility). Note that semiconductor devices characteristics may be affected by strong electromagnetic waves or magnetic field during operation.


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