Heltec Bitcoin Miner - NMMiner USB Chian Solo Lottery Miner with 387.5 KH/s, ESP32-S3 Plug & Play Crypto Miner with 0.96" Display, Low Power, WiFi/Bluetooth, Real-Time Monitoring & USB Tester
Condition: New
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Availability:
In Stock.
Arrives
Saturday, Mar 21
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Features
- Low-Cost Bitcoin MinerExperience the thrill of Bitcoin Solo Lottery mining at an extremely low entry cost. Powered by a deeply optimized ESP32-S3 chip with a hash rate up to 387.5KH/s, it continuously buys you a ticket of hope.
- Unique USB Chain DesignMultiple crypto miner can be easily daisy-chained via USB-A interfaces, requiring only one power supply. Build a clean and efficient BTC Lottery Device Chain for combined hashing power and centralized management.
- Dual-Mode Mining & Real-Time MonitoringSwitch between bitcoin solo miner mode or a desktop clock mode (mining runs in background) with one click. The built-in high-precision USB tester monitors device power consumption (5-20V/0-6A), offering both utility and fun.
- Open-Source & Plug-and-PlayThe bitcoin lottery miner is easy setup with the official Web Flash Tooljust configure Wi-Fi and your Bitcoin address via a browser. Also compatible with Arduino/Platform.io, making it a versatile ESP32 development board for hobbyists.
- Low Power & Cluster ManagementOptimized for energy efficiency. Use the free NMController software (Windows/Mac) to easily manage and monitor multiple nerdminer within your local network.
Brand: Heltec Automation
Model Name: DL-78-1
Connectivity Technology: Wireless
Included Components: USB Cable
Wireless Communication Standard: 802.11bgn
Hard Drive: 8 MB Solid State Drive
Wireless Type: 802.11bgn
Brand: Heltec Automation
Series: DL-78-1
Item model number: DL-78-1
Hardware Platform: PC
Item Weight: 1.06 ounces
Product Dimensions: 3.03 x 0.91 x 0.53 inches
Item Dimensions LxWxH: 3.03 x 0.91 x 0.53 inches
Color: Black
Hard Drive Interface: USB 1.1
Power Source: DC
Manufacturer: HELTEC AUTOMATION
Date First Available: December 5, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Mar 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Can't give a zero review!! First, it was supposed to be next day...a week later.. then the case looked like someone opened it, it literally popped off as i was putting it in the port. I didn't care really, more ventilation. Went through the standard setup process and let it run. Next day, check up online, i see my other 3 miners and not this one. It stalled at 80% loading up. Tried again with a different mining site, same thing. Did this way to many times!! Let it sit overnight unplugged, same thing again. Tried all the reprogramming and update sets, nothing works. Sending back for a replacement, going to give it 1 more try. Not impressed at all!! Bought cheaper ones with better results!
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Reviewed in the United States on January 31, 2026 by me me
Set up in just a few minutes. Works perfectly as described. Mining away!
Reviewed in the United States on February 1, 2025 by PaperBoy17
I didn’t care for it because they lacked any type of instruction
Reviewed in the United States on February 21, 2026 by Michael A Kroon
Just received, not started using yet, BUT this posting says 310KH/s, but box says 120kH/s????
Reviewed in the United States on October 6, 2025 by michael m sauter michael m sauter
They don’t even mind anything whatsoever they don’t provide a good platform for you to change it or adjust settings without resetting the device completely and then putting everything back in and even if you do have the right addresses and all that stuff it doesn’t let you go between it, your phone settings or web, web addresses without having to log right back in to it every time to adjust anything I will never buy a product from this company ever again. I’ve already salvaged chips and components for my own project, I repeat to all would be buyers of this product never ever ever ever ever ever ever ever buy it. It’s a waste of your money, even though they will refund you without having to have you ship the product back, which is the only good side to this Purchase. I will never ever buy it again or go through this company again.
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Reviewed in the United States on February 25, 2025 by richard f hansen
After millions of visits to reedit, chatgpt troubleshooting, shouting at the gateway login in screen for the device, and about 4 gallons of tears I finally figured out how to get this thing to actually work. 1.stratum+tcp://public-pool.io:21496 <----never works, you will get to about 80-86% connection progress and get stuck on pool connection and never connect in. 2. Your wifi info you put in did save even though when you go back to the info section of the gateway page for the device shows nothing. Rule of thumb is that if you make it to a pool connection stage that means it has accepted your wifi info and connected to the internet otherwise you would be able to attempt the pool connection 3.Use the NM ESP Flash tool, to get your computer to recognize the device hold down the little button WHILE you plug it into usb, you will know you did it right because the screen will just show black and a new COM device will show up when you go to update the firmware with the tool, for me it was COM3. 4. Use firmware version 1.1.01, i prefer this version because it wont just say "Pool Connect" for the status and will actually say "Pool Connect <pool name> 5. MOST IMPORTANT USE stratum+tcp://pool.tazmining.ch:33333 it connected instantly for me and is running 100% stable. 6.Dont really pay attention to the provided instructions they are really incorrect. And don't worry about that license nonsense you see either you don't need it just follow my instructions. 7.Don't leave the password field blank in the gateway for the pool use "x" without the quotes and no space before or after 8.Plug it in and let it work Update: So i have come to understand the operations of these devices a little better. I have found out how to get them functionally operating and have mine going with a uptime currently around 32 hours. If you want to view your stats connect to the same network the device, then punch into a web browser the device IP that your screen displays. I just downloaded a the "NM Controller" software that essentially does the same thing except in a program not a webpage. The wepage looks exactly like the one in the images they provided.My ip was like 192.168.1.27 or something like that, it will be a diffrent ip then the one you used at the wifi configuration page incase you cant read the screen. On a final note, you dont have to use the tazming pool either just search on google for a "Lotto Miner Pool" i switched my pool to stratum+tcp://ss.antminer.com:3343 or port 3333 I THINK just look it up and see what you like. Also ask chatgpt for recommended pools as it was a life saver because im well versed in python but C is a lanuage as ancient as sumarian culture thats annoying. Oh also, if you want to make your own antminer it's super duper easy just buy a esp32-s3 and you can essentially use the firmware tool website to dump on the info. Personally i had chatgpt write up a firmware thats custom with my own wificonfig page and coded to be pinned out for a esp32-s3 and had it put in some coding for a ssd1306 display to show the same kind of information on the device. Just tell it to be sure to add the "stratum protocols" for mining which is just basically the part on how in connects to the pool and such. After that check your new webserver and screen. Depending in your pool aswell you might be able to hop on their website and see all the miners currently in the same pool and your device name should popup or wallet or matching stats. Its kind of neat to verify its actually working that way. Cheers prospectors!
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Reviewed in the United States on February 16, 2025 by Justin K.
This ESP32-S3 board is pretty slick - a mini miner with built-in power measurement features. It reminds me of my early days mining crypto, running six graphics cards nonstop on an open rig, with homemade ducts blowing cold air directly onto the GPUs to keep them cool. Those were the good days, at least until uncle sam started asking for a cut. Anyways, it was pretty straightforward updating the firmware. I just went to flash.nmminer dot com, held the button when plugging into the USB port, selected the device called "nm-usb-chain-v1" and clicked "Connect and Program". To configure it, just connect to the hotspot using the QR code shown on the display and then visit the router's page at 192.168.4.1. It's definitely a cool device to mess around with, especially if you're feeling nostalgic about the early days of mining.
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Reviewed in the United States on March 21, 2025 by baxter the basset hound
As described but does emitt a hi high frequency sound constantly
Reviewed in the United States on August 29, 2025 by j patrocky