- General Specs
- Interface Pin Function
- Contour Drawing
- Other Specifications
- Description
- GUI Builder
| Item | Dimension | Unit |
|---|---|---|
| Size (Diagonal) | 3.55 | inch |
| Dot Matrix / Resolution | 256 × 64 | dots |
| OLED panel | 100.4 (W) × 36.1 (H) × 3.39 (D) | mm |
| Housing Outline | 157.0 (W) × 40.0 (H) × 11.45 (D) | mm |
| Module Dimension | 157.0 (W) × 40.0 (H) × 11.45 (D) | mm |
| Viewing Area | 88.52 × 22.28 | mm |
| Active Area | 95.04 × 53.856 | mm |
| Dot / Pixel Pitch | 0.342 × 0.333 | mm |
| Support Grayscale | Yes | |
| LCD Type | OLED, White, Passive Matrix | |
| Gray Scale | 4-bit | |
| Control Board | Yes | |
| System Interface | CAN Bus differential ± 3.3 | |
| Protocol | CAN open | |
| I/O(GPIO) | No | |
| MCU | STM32F750 | |
| Detect Points | 1 | Points |
| Touch Panel | Projected Capacitive Touch Screen, PCAP | |
| Surface | Glare | |
| Operating voltage | 5 | Vdc |
| Duty | 1/64 Duty | |
| Flash Memory Size | 16 | MB |
| SDRAM Frequency | 108 | Mhz |
| Operating Temperature | -20~+70 | °C |
OLED Smart Display with CAN Bus (CN1 Definition)
| Pin No. | Symbol | Function | Remark |
|---|---|---|---|
| 1 | +5V | Power supply 5V input | Input |
| 2 | DGND | Reserved | Output |
| 3 | GND | Power supply GND input | Input |
| 4 | D- | Reserved | I/O |
| 5 | CAN High | CAN bus D+ | I/O |
| 6 | D+ | Reserved | I/O |
| 7 | CAN Low | CAN bus D- | I/O |
| 8 | +5V | Reserved | Output |
| 9 | DGND | Reserved | Output |
| 10 | NC | Reserved | |
| 11 | DGND | Reserved | Output |
| 12 | NC | Reserved | |
| 13 | NC | Reserved | |
| 14 | NC | Reserved | |
| 15 | NC | Reserved | |
| 16 | NC | Reserved |
CN2 Definition
| Pin No. | Symbol | Function | Remark |
|---|---|---|---|
| 1 | NC | Reserved | |
| 2 | VDD3V | Input | |
| 3 | NC | Reserved | |
| 4 | TAG_SWCLK | ||
| 5 | NC | Reserved | |
| 6 | GND | ||
| 7 | NC | Reserved | |
| 8 | TAG_SWDI | ||
| 9 | NC | Reserved | |
| 10 | NRST | ||
| 11 | NC | Reserved | |
| 12 | TAG_SWDO | ||
| 13 | DGND | ||
| 14 | DGND | ||
| 15 | +5V | Input | |
| 16 | NC | Reserved |
Mechanical Dimensions and Outline of 3.55-inch OLED Smart Display

Absolute Maximum Ratings
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | - | +70 | ℃ |
| Storage Temperature | TST | -30 | - | +80 | ℃ |
Electrical Characteristics
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | +5V | - | 4.4 | 5 | 5.6 | V |
| Supply Product current | I (mA) | - | 355 | 425 | 500 | mA |
BOM
| Item | Description |
|---|---|
| LCM | REX025664DWPP3L00000 |
| PCBA | SV102566400DA00N0100 |
RLEP02566400DGAAASA00, this 3.55-inch CAN Bus OLED Smart Display adopts one of our off-the-shelf 265x64 pixel OLED modules coupled with coding firmware interface. In the light of the coding firmware, users only need to execute commands of control which cut down on time of programming notably. Such smart display is an excellent solution for faster time-to-market.
The Smart Display of Raystar is comprised of our OLED module and CAN interface. There are plenty of advantages of this interface including data transmission of long distance (up to 40 meters), being highly immune to electrical interference, good stability. CAN BUS is the most common physical layer; the maximum transmission rate can reach 1Mb/s (High-Speed CAN). It’s effortless to communicate with other devices supporting CANopen protocol, moreover, there’re various types of objects of control to choose from. On top of that, its flexible parameter control settings allow users for faster development.
Smart Display has built-in flash memory (Flash) to store fonts and graphic objects (Object Dictionary). The host can simultaneously control up to 30 Smart Displays and demonstrate different graphic objects. This Smart Display also provides standard UI objects enabling users to swiftly develop projects. If customers need customized UI objects, Raystar’s engineering team is able to provide you with comprehensive help and convert image files in PNG / JPG format into image control objects which can be completed in 3 to 5 working days.
We also provide demo set with all needed accessories for you to realize your GUI design on smart displays.

1. Introduction of Raystar Smart Display GUI Builder
1-1 Dragging Widgets & preview function:
Users are able to design their screen appearance by dragging widgets on Raystar GUI Builder, and you also get a live preview of the changes. With the concept of "what you see is what you get", this function is time-saving for screen appearance design.
1-2 Simulator function:
There’s no need to purchase the hardware (Smart Display) to demonstrate the display effects and interactive behaviors. Users only need to use Raystar GUI Builder application software simulator to simulate the display effects and functions on the computer which greatly reduce costs and speed up project development.
1-3 Change or build GUI design on the client-side:
Instead of creating graphical objects through the Raystar engineering team, customers can replace or create GUI designs by themselves. But if customers have any other demands, we can also provide custom-design graphics objects.
1-4 How to get Raystar’s GUI Builder?
All you need is to contact us through our website or send inquiries to our sales email address. We'll provide it free of charge.
2.Smart Display GUI Builder introduction of operation and toolbar
2-1 The Start screen of Smart Display GUI Builder

2-2 The design page of Smart Display GUI Builder

2-3 Customization by Smart Display GUI Builder

2-4 Simulation by Smart Display GUI Builder

2-5 HW device update

2-6 The settings of installation
Install USB2CAN Driver:
*Execute stlink_winusb_install.bat (Please contact us to get the file)

Install Microsoft Visual C++ 2015-2019 Redistributable (x86)
*Execute VC_redist.x86.exe (Please contact us to get the file)

Install Smart Display GUI Builder
*Execute RaystarSmartDisplayGUIBuilderSetup_v0.1.5.msi (Please contact us to get the file)
*An icon of “Raystar SmartDisplay GUI Builder” will be shown after installing











