Vision Master E290

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Vision Master E290

$19.90 – $21.90

What's this? Vision Master E290 is a IoT development board with 2.9 inch E-Ink.

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Description

Summary

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.

This board is equipped with a default 2.90-inch black-white E-Ink display screen, continuous display for 180 days after power outage. 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	6ADC_1, 1ADC_2, 6Touch, 8MPSRAM, 3UART; 2I2C; 2*SPI. Etc
Memory	384KB ROM; 512KB SRAM; 16KB RTC SRAM; 16MB SiP Flash
Interface	Type-C USB; 21.25 lithium battery interface; LoRa ANT(IPEX1.0); Wi-Fi ANT(IPEX1.0); 220 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	87.9636.6312mm
Display	2.90 Inch Black and White E-Ink Display Screen

Description

Pin Map

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Highly extensible

Vision Master E213 has a rich set of pins and hardware resources, which will allow you to expand widely.

The SH2.0-4P interface can be directly connected to the QuickLink series sensors.

2*20 Pin Female Header, perfectly compatible with Raspberry PI.

High Resolution&Easy to Use

The integrated E-Ink display has a high resolution of 128×296 pixels, and can show system status and parameters, making it convenient for users to use the development board for their own product design.

LoRa module is optional

LoRa modules are optional and can reduce a lot of costs if you don’t need a LoRa module.

FAQ

Can the onboard 2.4GHz antenna be replaced?

The 2.4GHz antenna is a spring antenna, and there is no additional interface on the board for 2.4GHz wireless signals.

Can ESP32’s WiFi and Bluetooth be used at the same time?

No, the WiFi LoRa 32 don’t have an external PSRAM, if your application need use Bluetooth and Wi-Fi at the same time, you can look into this product: Heltec Wireless Bridge.

What development methods does it support?