Nerdminer Models: V2, Micro, DUO and DIY Alternatives Compared

Nerdminer models

As you already know, Nerdminer devices were built to give you an educational, hands-on experience with Bitcoin mining, with no pretense of turning a real profit. The current model, built around the ESP32 T-Display S3 board, ships in several variants:

Nerdminer V2

With a hash rate of roughly 78 KH/s and a draw close to 0.7–1 W, this model stands out for its exceptional energy efficiency (around 0.01 J/GH) despite its tiny compute power. Its updated firmware and plug & play Wi-Fi setup make it ideal for anyone who wants to watch the mining process live without wrestling with the technical side.

Here are two links worth checking out on the Nerdminer project:

1. Open-source project on GitHub
   The official NerdMiner (v2) repository maintained by BitMaker-hub, where you’ll find the source code, documentation, and the latest updates.
2. Forum to learn about the Nerdminer
   This Forocoches thread is full of real experiences, questions, and tips from people who have built and configured their own Nerdminer. A good place to learn and trade notes about the project.

Nerdminer Micro

This variant is even more stripped down, with no screen at all. It delivers around 50 KH/s on just 0.3 W. It’s the perfect pick if you want to play with the technology on the smallest possible budget. Its low draw and simplicity make it the educational option par excellence. View in store.

Nerdminer DUO

By packing two modules into a single device, the DUO doubles the hash rate to roughly 156 KH/s and adds a second screen so you can watch mining stats in real time. The DUO version blends function and looks, giving you a complete read-out of your mining stats.

Nerdminer v3

You may have come across mentions of the Nerdminer v3 in a forum, on a website, or in some store, but the truth about this version of the device is very different from what they’d have you believe. I break it all down here: NerdMiner v3: does it exist, and where can you buy it?

Mining power

To show what these hash values mean for profitability, here’s a short Python snippet that estimates the expected time to find a block, assuming a fixed network hash rate. Tweak the variables to match reality:

import math

# Configuration for Nerdminer V2 (78 KH/s)
device_hash_rate = 78e3        # in H/s (78 KH/s)
# Assume a Bitcoin network hash rate of 150e18 H/s (example value)
network_hash_rate = 150e18     # in H/s
block_time = 600               # average block time in seconds (10 minutes)

# Probability of finding a block on each attempt
prob = device_hash_rate / network_hash_rate
# Expected time (in seconds) to find a block
expected_time_seconds = block_time / prob if prob != 0 else float('inf')
print(f"Expected time to find a block: {expected_time_seconds:.2e} seconds")

The output of this script is a reminder that, in practical terms, the odds of a Nerdminer ever finding a block are essentially nil, which reaffirms its educational and symbolic role.

Alternatives to the Nerdminer

Nerdminers are appealing for their low cost and low draw, but there are other options in the mini-mining space that pack a lot more compute while keeping the DIY spirit. The ones I’d single out:

Bitaxe/NerdAxe

These devices pair the ESP32 microcontroller with an ASIC chip — the Bitmain BM1366 or BM1370, for example — which lets them reach hash rates in the order of hundreds of gigahashes per second.

“With a Bitaxe or NerdAxe you get performance up to 10 million times higher than a Nerdminer, though they’re still a long way off the high-end commercial ASICs.”

GekkoScience Compac F

This is an ASIC-based USB miner (Bitmain BM1397) that delivers a steady hash rate between 200 and 350 GH/s, with the catch that it needs to be plugged into a PC or a Raspberry Pi to run.

“The Compac F shows how a USB device can shake up small-scale mining, even if setting it up is more technical.”

Goldshell Mini-DOGE

Aimed at altcoin mining (Litecoin/Dogecoin), the Goldshell Mini-DOGE III is a mini ASIC that reaches up to 700 MH/s on the Scrypt algorithm, drawing around 400 W.

“Although it costs more, Goldshell devices offer moderate potential returns in altcoin markets.”

Device comparison

To make the options easier to see at a glance, here’s a comparison table covering the things that matter: price, performance, power draw, efficiency, ease of setup, compatibility, and profitability.

Better than buying a lottery miner is building one yourself. I’ve written this step-by-step tutorial to build a Nerdminer v2. It’s a project that teaches you a lot about mining, programming, and networking.

Nerdminer on Raspberry Pi (ShurikenPi)

Another way to get started with Bitcoin mini-mining is to repurpose a Raspberry Pi as a CPU “lottery miner.” The ShurikenPi project turns a Raspberry Pi (ideally a Pi 4) into a lightweight miner built on cpuminer-multi, inspired by the NerdMiner and Bitaxe ecosystem. Like the Nerdminers, its purpose is mainly educational and experimental: the chance of finding a block is practically zero, but it’s great for learning and tinkering on very few resources.

Basic requirements

• A Raspberry Pi 4 (the amount of RAM isn’t critical) with Raspberry Pi OS already installed.
• An internet connection and terminal access (directly or over SSH).
• A stable power supply and a microSD card with enough space.
• It’s best to dedicate the Pi to this, since mining eats CPU and can slow down other processes.

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Quick ShurikenPi install

Installation runs through an automatic script. From your Raspberry Pi’s terminal:

# Go to the HOME directory
cd ~

# Download the ShurikenPi installer
wget https://raw.githubusercontent.com/Urban-Hacker/shurikenpi.io/main/install.sh

# Make it executable
chmod +x ./install.sh

# Run the installer and start the wizard
./install.sh

Once the wizard finishes, ShurikenPi is installed in its directory (by default ~/shurikenpi/shurikenpi.io). From there you control the miner with the main script:

cd ~/shurikenpi/shurikenpi.io

# Start the miner
./shuriken.sh start

# Stop the miner
./shuriken.sh stop

# Check the status
./shuriken.sh status

ShurikenPi is still in beta and uses the Raspberry Pi’s CPU to mine Bitcoin, so its compute power is negligible against the network, just like the rest of the nerdminers.

A solid first step into crypto mining

As you already know, Nerdminer devices are an accessible, educational way into crypto mining. Their ability to find Bitcoin blocks is essentially nil, but their value is in letting you experiment and learn about blockchain on a minimal budget.

Alternatives like the Bitaxe/NerdAxe offer far more power, while devices such as the GekkoScience Compac F and the Goldshell Mini-DOGE let you explore altcoin mining with some expectation of return.

Keep one thing in mind: given how volatile the rewards are and how high mining difficulty runs, no device guarantees a safe profit. That’s why I always recommend running fresh profitability numbers and being honest about your real goal: is this education, a hobby, or a bet on decentralization?

Frequently asked questions

What Nerdminer models are there?

The current lineup is built on the ESP32 T-Display S3 board and comes in three variants: the Nerdminer V2 (~78 KH/s, with screen), the Nerdminer Micro (~50 KH/s, no screen, the cheapest), and the Nerdminer DUO (~156 KH/s, two modules and a dual screen).

Which Nerdminer model should I buy?

If you want to watch the mining live with no fuss, go for the V2 with its plug & play Wi-Fi setup. If you want the cheapest entry point and don’t care about a display, the Micro is the most educational option. The DUO is for anyone who wants double the hash rate and a richer real-time read-out.

Does the Nerdminer v3 exist?

Not as the official project would have you believe. The reality behind the “v3” is very different from what some stores and forums suggest. I break it down in detail in my dedicated article on the Nerdminer v3.

Is there a more powerful alternative to the Nerdminer?

Yes. The Bitaxe and NerdAxe pair the ESP32 with an ASIC and reach hundreds of GH/s up to 1.2 TH/s. The GekkoScience Compac F is a USB ASIC miner (200–350 GH/s) that needs a PC or Raspberry Pi, and the Goldshell Mini-DOGE III mines altcoins (Litecoin/Dogecoin) at up to 700 MH/s. All of them keep the DIY spirit while offering more compute.

Can a Nerdminer turn a profit?

No. The odds of finding a Bitcoin block with a Nerdminer are practically nil, so the value is educational and symbolic rather than financial. Devices like the Goldshell Mini-DOGE can earn a few dollars a day in altcoins, but for actual returns you’d need commercial-grade ASICs.

Can I turn a Raspberry Pi into a Nerdminer?

Yes, using the ShurikenPi project, which turns a Raspberry Pi (ideally a Pi 4) into a lightweight CPU lottery miner based on cpuminer-multi. Like the Nerdminers, the chance of finding a block is practically zero, but it’s a great way to learn and tinker with very little hardware.

Learn more about the Nerdminer