Vision Master E213, ESP32S3 + SX1262 E-Ink LoRa Node, Meshtastic and LoRaWAN Compatible

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Description

Characteristics

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Description

Summary

Vision Master E213 (HT-VME213) 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 2.13-inch black and 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, 20uA 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 2.13 inch 250 x 122 pixels display, support for partial refresh.
Storage condition: -25 ~ 70℃, ≤45%RH.
Optimal operating condition：0~50℃, 55±10%RH.
2*SH2.0-4P sensor interface is perfectly compatible with QuickLink series sensors.
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); 2182.54 Header Pin; 2SH2.0-4P sensor interface.
Battery	3.7V lithium battery power supply and charging
Operating Temperature	-20 ~ 70 ℃
Dimensions	66.7530.4110mm
Display	2.13 Inch Black and White E-Ink Display Screen

Description

Pin Map

Demension

High light

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.

Plastic support plate

A transparent plastic support platform is installed between the PCB and the display frequency, which can protect the electronic components on the board and enhance the heat dissipation function of the board.

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.

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.

What’s the battery socket type?

You can find this type of socket by search “SH1.25 x 2”.

I can not find serial port.

Please reinsert your USB cable, or try another cable.
If you use USB adapters, try to skip them and connect directly to the USB port on your PC.
Open your DEVICE MANAGER, select the port, and if prompted, try to install the CP210X driver
Try another computer or a different system

The serial port does not exist.

Open your DEVICE MANAGER, check to see if the device port can be found. If not, please refer to the previous topic “I can’t find serial port”.
Please check if your serial port is opened elsewhere.
Enter the BootLoader mode to upload, there are two ways to enter the mode:
- connect the USB cable, hold down the User (or ORG or Boot) key, press RST once, and then release the User (or ORG or Boot) key.
- Hold down the User (or ORG or Boot) key, then connect the USB cable.

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.

Docs & Resource

[Resource] — Heltec ESP (ESP32&ESP8266) framework (Include LoRaWAN library)
[Attachment] — Heltec ESP32 special library
[Attachment] — Schematic diagram
[Attachment] — Datasheet
[Attachment] — E-Ink Datasheet
[Resource] — User manual and related documents
[Resource] — Downloadable Resources

Packing list

The default packing list without selecting any accessories is as follows:

Item	Quantity
HT-VME213	x1
LoRa Antenna (Available when LoRa selected)	x1
SH1.25-2P Battery Connector	x1
2.54*13 Header Pin	x2

Characteristics

Weight	35 g
Dimensions	6.6 × 6.6 × 2 cm
LoRa Band	433MHz, 470~510MHz, 863~870MHz, 902~928MHz, N/A
Firmware	No, Meshtastic

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