0.96 Inch Display
Master Chip
Easy Setup
HashRate
Wi-Fi
Power supply range
Summary
- NM-usb-chain is a NMMiner Offical development board, with Wi-Fi, Bluetooth.
- The NM-usb-chain devices can be chained one-by-one.
ESP32-S3FN8, support Wi-Fi and BLE.
The NM-usb-chain also can working with the ESP32-S3 sample programs and development tools from Arduino and Platform.io, users can operate via Bluetooth, Wi-Fi.
Main Features

Specially optimized algorithm firmware enhances the arithmetic power to 117KH/s, increasing the probability of winning the lottery by 60%.
By double-clicking the USER key, allows you to switch to a desktop clock mode with the BTC Lottery running in the background.
Lower power consumption.
The NM-usb-chain can form a chain structure one by one, and only requires one power supply, making the overall design more concise.
No External computer is needed.
The system supports SSL secure connection if the pool supports it.
Specifications
Title | Info |
---|---|
Origin | Mainland China |
Integrated Feature | WiFi 802.11b/g/n, BLE |
Operating mode | BTC lottery/USB power meter tester |
Master Chip | ESP32-S3FN8, Xtensa32 dual core processor |
Power monitoring range | 5~20V/0~6A |
HashRate | 110~120kH/s |
Wi-Fi | 802.11 b/g/n, up to 150Mbps |
Power supply range | 5~20V |
Display | 0.96 inch TFT-LCD;160*80;Full-color |
Charge protocols | QC2.0 QC3.0;FCP/SCP;APPLE2.4A/2.1A/1A/0.5A;DCP;SAMSUNG ADC |
Memory | 384KB ROM; 512KB SRAM; 8MB SPI Flash |
Dimensions | 772313.5mm |
Device management | NMController |
Operating temperature | -20 ~ 70 ℃ |
Where to get the NMMiner firmware?
To get the firmware,
- you can get it from NMTech’s github.
- you can flash the NMMiner firmware to your device from the NMMiner web-flash-tool.
If you accidentally lose your license or flashed other applications, the web flash tool will help you findand recover it. So don’t worry to erase the board for other applications, you can reflash the NMMiner, and there’s noneed any activation. If you don’t have a license yet, you can directly jump to the activation page from the web flash toolThe nm-bot-chain, nm-usb-chain, Heltec Vision Master T190 (NMMiner) are NMMiner Inside devices, no longer need to activate.
How to config the NMMiner easily?
With the NMMiner web-flash-tool, https://flash.nmminer.com, you can config the NMMiner moreeasily.
Update the firmware
Step 1: When you first get the device, you should choose the device type you have, choose it andConnect and Program.
Step 2: When the NMMiner works well, you can see the WiFi and BTC address configure input boxInput your WiFi SSlD and password, BTC address, config the device. lf everything is ok, you can see theHashrate report from the Console.
Console Only
If you don’t need to update the firmware, just check the Console only, the NMMiner will run, then youcan config it as【Update the firmware】 Step 2.
NMController Cluster Management Tools
- NMController_client, source code, we put the *_x64.msi and *_x86.msi in tool folder already, just install, only for Windows
- NMController_web, source code, it’s a Python implement, for Windows and Mac.
How to manage my NMMiners?
if you have many NMMiner devices, you can use the Controller software provided by NMTech tomanage all devices within the LAN(local area network), currently support all NMMiners and NMAxe.
You can get this tool from github: https://github.com/NMminer1024/NMMiner/tree/main/tool.
- nmcontroller client, only support the windows system, and maybe you need download the .Netframework.
- nmcontroller web, https://github.com/NMminer1024/NMController web, you just need a pythonenvironment to run it,python nmcontroller.py.
With the NMController, you can quickly enter the device management page.
What Cryptocurrency? How is the Income? And Difficulty?
Bitcoin Lottery
draws every 10 minutes, 144 times every day, 52560 every year.
The lottery value is ~3.125 BTC, approximately equal to $220,000.
- Degree of difficulty: ✬✬✬✬✬✬✬✬✬✬
The screenshot is the recent data of CK Pool. The data shows that there is a lucky winner about every month.
Local Management System
Built-in Axe OS allows users to view system status and set device parameters in the dashboard
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