Product Description
Heltec Meshtastic ESP32 LoRa 2.90 inch E-ink Displaywith Arduino Smart Price Tag E-Paper Monitor Devboard Bluebooth WiFi
Heltec Meshtastic ESP32 LoRa 2.90 inch E-ink Displaywith Arduino Smart Price Tag E-Paper Monitor Devboard Bluebooth WiFi
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, |
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; |
Interface | Type-C USB; |
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 |
FAQ
How to Strat the Development Board.
Press and hold the Boot key, press RST once, and then release the Boot key. Among them 21 button
can be customized by user.
What’s the battery socket type?
You can find this type of socket by search “SH1.25 x 2”.
What development methods does it support?
Arduino
Micro Python
PlatformIO
Espressif IDE
We strongly recommend using Arduino. We have complete technical support and provide complete
LoRaWAN code for ESP32 Arduino framework.
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.
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.
Packing listThe default packing list without selecting any accessories is as follows:
Item | Quantity |
HT-VME290 | x1 |
LoRa Antenna (Available when LoRa selected) | x1 |
SH1.25-2P Battery Connector | x1 |
2.54 *13 Header Pin | x2 |
About Prime Living
Prime Living is a Canadian online store offering a carefully selected range of quality products for home, automotive, tools, outdoor living, electronics and more.
We are committed to fast order processing, secure packaging and reliable tracked shipping to provide an excellent shopping experience.
Shipping policy
We carefully handle each order to ensure your package arrives quickly and safely. Please note that factors such as weather, postal traffic, or carrier performance may occasionally cause delays beyond our control.
We provide free shipping and dispatch all orders within 2 business days of payment, often sooner. All shipments are sent via international express air shipping, with a tracking number provided so you can follow your order every step of the way.
. Please provide a physical address, as we do not ship to P.O. Boxes.
Returns
Your satisfaction is important to us. Hexlight offers a 14-day Free return policy: if you are not fully satisfied with your purchase, you may request either a full refund or an exchange. All return shipping costs are fully covered by us.
Condition
Brand New
Shipping
This item is shipped directly from our supplier in China with tracking.