• To ensure the best product experience, please upgrade the firmware to the latest version once you receive the product. Firmware Upgrade Liink.

• Specially optimized algorithm firmware enhances the arithmetic power to 117KH/s, increasing the probability of winning the lottery by 60%.

• The display will turn off after 1 minute without operation, and you can wake up the screen by pressing any key to avoid light pollution.

• The system supports SSL secure connection if the pool supports it.

• We offer long-term support for our services.

• By double-clicking the USER key, allows you to switch to a desktop clock mode with the BTC Lottery running in the background.

Operation

Better Performance

Main Features

• Specially ESP32-S3R8 MCU, support Wi-Fi and BLE.

• Optimized Software that achieves a higher Harshrate of 117KH/s.

• Computing Power increases by 60% more than other boards from rivals, which means 60% more chances of winning.

• Standalone: can work as a BTC lottery miner directly over WiFi.

• No External computer is needed.

• Embedded: low cost, low maintenance, high availability, high reliability, low power.

• Versatile: solo/pool mining.

• ESP32-S3R8 MCU wifi microcontroller on board.

Product dimensions

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 LE: Bluetooth 5, Bluetooth mesh
Hardware Resource	7*ADC_1, 6*ADC_2, 11*Touch, 8M*PSRAM, 3*UART; 2*I2C; 2*SPI. Etc
Memory	384KB ROM; 512KB SRAM; 16KB RTC SRAM; 8MB SiP Flash
Interface	Type-C USB; 2*1.25 lithium battery interface; LoRa ANT(IPEX1.0); Wi-Fi ANT(IPEX1.0); 2*12*2.54 Header Pin; SH1.0-4P sensor interface.
Battery	3.3~4.2V lithium battery power supply and charge.
Operating Temperature	-20 ~ 70 ℃
Dimensions	60*25.4*10.19mm

Parking List

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

Item	Quantity
HT-VMT190	x1
LoRa Antenna (Available when LoRa selected)	x1
SH1.25-2P Battery Connector	x1
Sensor connection wire	x1
2.54 *13 Header Pin	x2

FAQ

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Company Overview

Chengdu Heltec Automation Technology Co., Ltd. ( English abbreviation Heltec Automation). At present, The company’s research and development and production include OLED dot matrix screen, electronic ink screen, IoT series products, LoRa supporting solutions and high-precision temperature controllers with automatic control algorithms as the core.

At present, there is a strong technical research and development team, a scientific production and manufacturing platform and a strict quality management system.

Our Services& Strengths

Stable performance, cost-effective products, high-quality and superior service, our products have not only gained a good reputation in the country, but also received high-quality evaluation in France, Germany, Russia, the United States, South Korea and other countries.

1). Rigorous quality assurance system.

2). High level of service awareness.

3). High quality team.

4). Components use well-known brands.

5). Quick response customer program.

6). Self-owned processing plant, rapid production, equipped with automatic SMT placement machine, automatic screen printing machine and reflow oven.