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R$ 1,080 Device Allows Mining Bitcoin with Professional Chips and Consumption Below 5W — But What Is the Real Potential?
In the fast-paced world of cryptocurrencies, where changes are constant and promises are not always kept, one question still haunts many: is it still worth mining Bitcoin at home in 2025 without spending a fortune? While companies invest millions in supermachines that seem straight out of a power plant, some people are going the other way and testing compact, cheap, and quiet equipment — like the little machines from Bitmaker.
An Experiment for Everyone to Understand How It Works
The idea was tested by content creator Adrián Science, known for addressing science and technology topics in a simple way. In the video, he puts two models from the brand NerdAX, sold by Bitmaker, to the test, which promise to bring mining back home — at much more affordable prices.
We are talking about machines that cost around 185 euros, which is about R$ 1,080 at current exchange rates. These devices use the same chips as professional mining rigs that cost more than R$ 23 thousand, but in smaller quantities. One version has only 1 chip (1.2 TH/s) and the other comes with 4 chips (4.8 TH/s). They are silent, compact devices with ridiculously low energy consumption — from R$ 0.25 to R$ 1.20 per day, depending on the model.
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Instead of Earning Through Work, You Take a Chance
These little machines do not work the same way as traditional mining equipment. Instead of participating in a “pool” with thousands of miners working together, they use a system called “lottery mining” — a kind of digital lottery.
Here’s how it works: every day, the machine tries to solve a Bitcoin block by itself. If successful, it earns a reward that today exceeds 300 thousand dollars (over R$ 1.6 million). The problem is that the odds of this happening are microscopic. A 1.2 TH/s machine has one chance in 4.6 million per day. In practice, that means waiting about 12,737 years to be selected. The more powerful machine (4.8 TH/s) reduces that number to about 3,180 years.
But since the energy cost is almost zero and maintenance is non-existent, the proposal is precisely that: keep the machine running all the time, as if it were a permanent digital lottery ticket, playing every day — without having to do anything.
Building a Miner for R$ 25
If up to R$ 1,000 is still beyond your budget, contributor Ramón showed in the video that you can go even further: set up a functional miner for just R$ 25 using an ESP32 board. This board is widely used in automation and basic programming projects.
Of course, the performance is symbolic — 78 kH/s, which is not even close to mining a block. But this project has another value: educational and experimental. It is great for anyone wanting to explore the Bitcoin universe from within, tinker with open-source code, and even print a 3D shell to build their own homemade miner.
Bitmaker has made all the source code, schematics, and assembly instructions available for free, making this experience accessible to anyone interested in learning.
It Won’t Make You Rich, But It Can Make You Smarter
Adrián was clear in his video conclusion: these machines are not an investment, but a learning tool. They are not intended to generate profit — but rather to help people understand in practice how the mining process works, how the Bitcoin network is sustained, and how blockchain technology operates behind the scenes.
For those looking for real income with cryptocurrencies, he suggests other paths, such as e-commerce, a field he teaches in a free course on the channel.
In other words: it’s an opportunity to learn and play with cutting-edge technology — without needing to spend a fortune and without the risk of overheating your router or air conditioner with mining heat.
Global Raffle Open to Brazilians
And to top it all off, Adrián announced a global raffle for three NerdAX machines. That’s right: Brazilians can participate. To enter, simply comment on the video and follow his profile on Instagram. The raffle will take place in a week.
This action is a way to bring more people closer to the crypto universe, with lightness, curiosity, and without the need for large investments. For those who want to truly experiment — without relying solely on videos or theories — it’s an excellent entry point.
So… Is It Worth It?
It depends on your goal. If the focus is to get rich, forget it. But if you want to learn more about cryptocurrencies, blockchain, and mining without spending much, these machines are a great way to learn while playing — and who knows, with a lot of luck, even end up mining a Bitcoin block in the future.
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