Description
Industrial Grade 128×32 OLED Display Module
The HTM-OLED1.71-SPI-01A is a monochrome passive matrix OLED display module meticulously designed by HOTHMI. Driven by the SSD1312 driver IC, this 128×32 OLED module delivers a resolution of 128×32 pixels with white illumination. With a 1.71-inch diagonal and compact dimensions of just 62.5mm*25.0mm*3.2mm, this 1.71 inch OLED module is ideal for applications where display quality and space efficiency are critical.
The module supports a 4-wire SPI serial interface and features ultra-low power consumption, high contrast, wide viewing angles, and fast response times—key advantages of OLED technology. With an operating temperature range of -40℃ to +80℃, this 1.71 inch OLED display meets industrial-grade requirements, ensuring reliable performance in harsh environments.
Technical Highlights
- High Contrast & Wide Viewing Angle：With a typical contrast ratio exceeding 2000:1, this 128×32 OLED module delivers deep black backgrounds and crisp white graphics. Its full-view design ensures consistent display quality from any angle, significantly enhancing the user experience.
- Ultra-Low Power Consumption：Under typical operating conditions, the logic current of this 128×32 OLED module is below 200mA. An integrated DC-DC converter eliminates the need for external high-voltage supplies, simplifying system power design—an ideal feature for portable and battery-powered devices.
- Rich Command Support：The SPI interface allows flexible configuration of display start lines, multiplex ratios, segment remapping, and COM scan directions. This makes the 128×32 OLED module highly adaptable to various display layouts and application scenarios.
Typical Applications
The HTM-OLED1.71-SPI-01A is widely used across multiple industries due to its superior display performance and interface compatibility:
- Industrial Control: HMI interfaces, instrument panels, embedded terminals
- Smart Home: Thermostats, smart switches, air quality monitors
- Portable Medical Devices: Handheld thermometers, blood glucose meters, portable monitors
- Consumer Electronics: Smart wristbands, MP3 players, e-cigarette displays
- Automotive Electronics: In-car air conditioning panels, dashboard status screens
Wherever a reliable 128×32 OLED is required, this module delivers consistent performance.
Technical FAQs about 128×32 OLED
Q1: Can the HTM-OLED1.71-SPI-01A connect directly to a 3.3V system? Does it require an external high voltage?
A:Yes. This 128×32 OLED module integrates a DC-DC boost converter. It operates from a 2.8V to 3.5V supply and internally generates the high voltage (VCC typically 12V) required to drive the OLED panel. Therefore, no external high-voltage circuitry is needed, and the 1.71 inch OLED module can interface directly with 3.3V or 2.8V microcontrollers, significantly simplifying hardware design.
Q2: How does the module perform at low temperatures?
A:This 128×32 OLED module has an operating temperature range of -40℃ to +80℃. At low temperatures, OLED response time may increase slightly, but no permanent damage or display failure occurs. Performance fully recovers when the temperature returns to normal. This makes the 1.71 inch OLED ideal for outdoor equipment or cold storage environments.
Q3: What SPI modes does the module support? Can multiple devices share the same bus?
A:The module supports a standard 4-wire SPI interface (SCLK, SDA, DC, CS). With the CS pin, multiple SPI devices can share the same bus, enabling easy system expansion. This 128×32 OLED module supports SPI clock speeds up to 10MHz, meeting high-refresh-rate display requirements.
Q4: How is long-term reliability ensured for this module?
A:Hot Display follows industrial-grade standards in design and manufacturing. This 128×32 OLED module uses passive matrix OLED technology, eliminating the need for a backlight and resulting in a more stable structure compared to traditional LCDs. Each OLED module undergoes rigorous aging tests and defect inspections to ensure uniformity and brightness consistency. Proper handling per the provided ESD, moisture, and mechanical shock guidelines further extends the lifespan of this OLED display.
