2.90 E-ink Display with ESP32 and LoRa
Description
Vision Master E290 (HT-VME290) is an E-Ink development kit with multiple wireless drive methods. Collaborate with the sample programs and development tools we provide, users can operate the display via Bluetooth, Wi-Fi and LoRa.
It is compatible with Arduino, PlatformIO, Micpython and other development frameworks, can be used to develop applications such as electronic tags and identity tags, it is also possible to run open source projects like Meshtastic.
Main Features
- ESP32-S3R8 MCU, support Wi-Fi and BLE.
- LoRa module is optional, compatible with Mashtastic.
- Low power consumption, 18uA in deep sleep, continuous display for 180 days after power outage.
- Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB / battery power automatic switching).
- Onboard 2.90 inch 296 x 128 pixels display, support for partial refresh.
- Storage condition: -25 ~ 70℃, ≤45%RH.
- Optimal operating condition：0~50℃, 55±10%RH.
- SH2.0-4P sensor interface is perfectly compatible with QuickLink series sensors.
- 2*20 Pin Female Header, perfectly compatible with Raspberry PI.
- Compatible with Arduino, we provide development frameworks and libraries.
Specifications
| Parameters | Description |
| Master Chip | ESP32-S3R8 |
| LoRa Node Chip | SX1262 |
| Frequency | 470~510MHz, 863~928MHz |
| Max. TX Power | 21±1dBm |
| Max. Receiving sensitivity | -136dBm@SF12 BW=125KHz |
| Wi-Fi | 802.11 b/g/n, up to 150Mbps |
| Bluetooth | Bluetooth 5 (LE) |
| Hardware Resource | 6*ADC_1, 1*ADC_2, 6*Touch, 8M*PSRAM, 3*UART; 2*I2C; 2*SPI. Etc |
| Memory | 384KB ROM; 512KB SRAM; 16KB RTC SRAM; 16MB SiP Flash |
| Interface | Type-C USB; 2*1.25 lithium battery interface; LoRa ANT(IPEX1.0); Wi-Fi ANT(IPEX1.0); 2*20 Pin Famle Header; SH2.0-4P sensor interface. |
| Battery | 3.7V lithium battery power supply and charging |
| Operating Temperature | -20 ~ 70 ℃ |
| E-Ink | 2.90 Inch, 128(H)x296(V) Pixel, 29x67mm, |
| Display Color | Black&White(2 Grayscale) |
| Dimensions | 87.96*36.63*12mm |
| Display | 2.90 Inch Black and White E-Ink Display Screen |
High light
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LoRa module is optional
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USB/Battery interface
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High resolution display rich
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Highly extensible
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Demension
Docs & Resource
Packing list
The default packing list without selecting any accessories is as follows:
| Item | Quantity |
| HT-VME290 | x1 |
| LoRa Antenna | x1 |
| SH1.25×2 Battery Connector | x1 |
