HiPo is a 3.52-inch electronic paper display module the size of a business card. Content is uploaded via NFC though a handy app. No batteries required. The development board can compile different display functions through editing the code.

NFC is used to transfer text or images to the e-paper display. Also, HiPo does not require batteries as is powered by that same NFC during transmission. This is possible because electronic ink technology can be displayed on a screen almost permanently, without an onboard battery. HiPo can be used as a badge, label or daily sticky note, as well as any other clever application you come up with.

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Features & Specifications

• Compatible with STM32，Arduino, ESP8266, ESP32, Raspberry Pi (we only provide STM32 open source code)
• Data transfer via 4 lines SPI with frequency 1 M to 5 M SPS
• Waveform stored in O-Chip OTP, easy to program with KEIL 5 open source software
• Working temperature: 32 - 122 °F
• Storeage temperature: -4 - 140 °F
• White reflectance above 30%
• Contrast ratio above 8:1
• Ultra wide viewing angle
• Ultra low power consumption
• Pure reflective mode
• Bi-stable display
• Ultra low current deep sleep mode
• On-chip display RAM

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Open Source

Find open source schematics, code and datasheet in our GitHub repository.

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