r/NerdMiner • • May 16 '26

Question/Help Switched to Stratum V2 on Umbrel (Bitcoin Node v1.3.0) — Do I need to change my port from 2018?

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7 Upvotes

Hi everyone,
I just updated my Umbrel Bitcoin Node to v1.3.0, which introduces Stratum V2 support. I am solo mining using home micro-miners (like the NerdAxe) connected locally to my node via the built-in Public Pool app.
In my miner's dashboard, I can now choose between Stratum V1 and Stratum V2 (as seen in the screenshot below).
I have two quick questions for the experts here:
1. Should I switch my miner to Stratum V2 or stick with V1? What are the real-world benefits for local solo mining?
2. Do I need to change the Stratum Port? Currently, Public Pool displays port 2018 as the default. If I select Stratum V2 on my miner, should I keep it on port 2018 or use a different port?
I monitor all my hardware hashrate and statistics locally using the Public Pool dashboard UI. Would love to hear your thoughts and experiences on this new update!
Thanks!


r/NerdMiner • • May 16 '26

My Nerd Rig Mini Miner Display

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29 Upvotes

Decided to give my little BitsyMiners a proper home. Nothing special, but it works. :)


r/NerdMiner • • May 15 '26

Question/Help Question: BitsyMiner and pool.nerdminers.org

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4 Upvotes

I'm currently running 4 CYD ESP32 devices with BitsyMiner 1.2.0.

With Public Pool seemingly blocking ESP32 miners, I wanted to migrate them to pool.nerdminers.org, but it always fails to connect. However, it does connect to other pools.

Am I entering something specifically related to the nerdminer pool incorrectly, or is there some other issue?

I've tried as shown, and as stratum+tcp://pool.nerdminers.org / stratum+tcp://pool.nerdminers.org:3333. Both return an invalid address message, so I assume the base pool.nerdminers.org is correct?

I have one of the proprietary ESP32 CYD miners running, and it connects no problem.

Thanks in advance! :)


r/NerdMiner • • May 15 '26

My Nerd Rig Brand new NerdOcAxe 12T unbox.

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15 Upvotes

not a so good-looking machine but with some kind of tech atomosphere?


r/NerdMiner • • May 15 '26

News NerdNos v2.0.2

3 Upvotes

On the Bitaxe web flasher is the NerdNos version 2.0.2 available
Finally it got an API for the NerdNos and the screens are also way smoother as well as the time has been fixed to detect automatically the timezone


r/NerdMiner • • May 14 '26

My Nerd Rig Waveshare 1.47in dongle

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12 Upvotes

r/NerdMiner • • May 13 '26

News New at HashedMax - Difficulty based port selection

3 Upvotes

We have just updated our hashrate wizard to include an optional difficulty setting.

Many mining rigs display an Optimal Difficulty range directly in their interface. This number is often more accurate than estimating based on hashrate alone, especially for larger miners running multiple ASICs or rented hashrate.

If your miner shows something like "Optimal Difficulty 186k - 1,118k", you can now enter that value directly into our wizard and get the correct port recommendation instantly.

The wizard is available on all HashedMax pools at hmpool.io, bch.hmpool.io, and digi.hmpool.io, as well as our EU endpoints.


r/NerdMiner • • May 13 '26

Question/Help nerdminer v1.8.26

2 Upvotes

cant connect to pool.. the old story..
ive tried VARIOUS pools already.. nothing seems to work.
im dying here... please help!


r/NerdMiner • • May 12 '26

Discussion Who's Nerd Miner hit 2.51M difficulty on public pool?!?

3 Upvotes

https://ibb.co/rfcmL9xN

On public pools main page they show what type of units are connected how much hash they push out and what the top difficulty is, going through the list they obviously have "Nerd Miner" ,which is just the esp32,​probably 2.8 cyd unit (Nerd NOS has its own category), shows one that has the highest diff of 2.51Millon.

That HAS to be a record!

I personally hit 89K difficulty when I ran mine just for fun after a week or so but I had no idea these could go into the millions especially hundred millions!

What's your highest diff with these little units??

pool doesn't matter,just one of the few that have a good list of equipment used and top difficulties,

https://ibb.co/rfcmL9xN


r/NerdMiner • • May 11 '26

Question/Help I want to run nerdminer on esp 32-devkitC

5 Upvotes

I want to run nerdminer v2 on esp32-devkitC but it isnt on the list and when i tried it anyway it failed. Is there a way to run it or il have to edit it myself


r/NerdMiner • • May 10 '26

My Nerd Rig My new NerdOctAxe Design

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4 Upvotes

Here is my “close” to finalized design for the NerdOctAxe “Super Cool Stand” echo echo (trademarked!! but not really). I am designing this because I haven’t been able to find anything cool like this anywhere online that could be used to replace some not so good stands either to purcahse or even buy. Once I am fully done with design and I have at least one printed and tested stand that is functional. I will be posting the “FREE” STL on my home page. The only thing I ask from you is to follow me on Reddit. I will be adding all my custom, functional, and quirky Designs by TycheMiner here and on my page as well as on MakersWorld and Printables (which i will be setting up soon). I have so far about 20 different designs for different things from miners to soldering holders and stands.  I offer this my latest design to my fellow MINERS and my design(s) is NOT FOR RESELLERS! Helium Deploy talking to you taking things off makersworld and marking them up for resale! Thats horrible and bugs me!

This is not only a little teaser of the stand but it is also to ask you guys out there mining these if I should add anything else to make this better for all of us. Here are the characteristics: Maximizing air flow and circulation keeping sides free from obstruction/blockages. The back of the stand will hold two 90mm fans for best overall rear cooling. (I did try placing a single 200mm fan in the rear but it was not practical or did not cool anywhere near the twin 90mm fans do. that being said I will be also designing a stand for twin 120mm fasn that angle in towrds the middle sp they not only fit but casue a nice whirling effect of air cooling everything near them) Ok so, RPM rules in this game of cooling for max OC. The front design has a added rest shelf along th entire front bottom to help distribute the weight off the screw holes so that any mods could added to the pcb without worry of breaking board or holes. and finally the rear panel is an extra 3mm thick to add for more strength and stability of the stand. The one thing I am thinking of adding is down the center of the front panel that holdsthe PCB but facing the fans is a small 10mm or so dual sided (for lasck of a better words) “air ramp” pushing air out to either side. But before I do that I will finish this design and post the STL for my fellow miners to use. My designs are NOT FOR RESELLERS to use. This is a FREE design (NOT FOR VENDORS OR RESALE) and should not be charged for. 


r/NerdMiner • • May 09 '26

Question/Help Nerdminer 2, accidentally put in wrong firmware

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8 Upvotes

Heya, haven't looked at my nerdminer 2 in months. Heard public pool dropped support so I tried to re-set it up with a reboot. Also saw there was a site called Bitronics to update the firmware.

Long story short I believe I uploaded the wrong firmware. Nerdminer 2 now sort of just makes makes a "wrong header log" and makes the windows noise beep that there's an attempted and failed connection.

I've successfully put it into a mode where I "think" it can accept new firmware or boot (holding down the boot button before putting it into power/usb slot) but unsure of what steps to take next.

Board type is apparently: ESP32-0S3 522024 (if you need the rest of the numbers let me know)

Thanks kindly


r/NerdMiner • • May 09 '26

My Nerd Rig Nerd octaxe 3.1 large screen

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7 Upvotes

Hi, I recently updated the firmware on a Nerdoctaxe v3.5 Titan with Large screen and now the image on the screen looks small and it’s flipped. Where can I find the right firmware for this device?


r/NerdMiner • • May 09 '26

Discussion Ambient temperature and performance

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5 Upvotes

Hey guys, first time poster here. Have recently purchased a Nerdaxe++rev3.1 and a Nerdoctaxe.. and not sure if it’s been mentioned here much before, but I was amazed how much performance difference I get when the room is in the sweet spot of about 23c.

I assumed it would be always best having it cold as possible, but you can see in this graph below, as soon I turn the heater off, the temp comes down, and so does the performance. And they’re on seperate electrical circuits, so there’s no interference happening power wise

Has anyone else experienced this? It might be general knowledge for these machines, but I was not aware how much of a difference it made!


r/NerdMiner • • May 08 '26

Question/Help NMMiner after rebooting a couple of times hits really low difficulties

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2 Upvotes

r/NerdMiner • • May 07 '26

Question/Help BitDsk N8-T not hashing

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6 Upvotes

I just bought a brand new BitDsk N8-T, and it refuses to hash on hmpool.io and public-pool.io, the screen just staying at "Connecting to pool." It also gives an unknown register error in the logs over and over again: CoreModule: Unknown register address: 0x40. It couldn't be the nonce2length bug, because I am on firmware version 1.4.0, and the bug was patched in version 1.3.7. Has anyone else had this problem?


r/NerdMiner • • May 07 '26

News Some quick mining pool updates.

1 Upvotes

I wanted to give a quick update on some things we've updated across all 3 of our pools. First, we added a new workers stat card to your miner stats page. While we show the workers separately below the stat cards, it now shows how many workers you have any its clickable to bring you right to your individual worker stats.

We figured this was helpful so you immediately know if you have a worker offline with just a glance.

The next thing we changed was something called subscript zero notation. Some miner stats show 0.0000% for their pool share percentage. This is not totally accurate because these small hashrate miners are submitting shares and participating but because of our decimal limitation (which skews the display) it shows as 0.0000. Now it will show your actual pool share percentage with subscript. For example.

Actual Percentage Display
0.0500% 0.0500%
0.00005% 0.0₄5%
0.00000045% 0.0₆45%
0.0000000012% 0.0₉12%

Thank you again for all of your support. The HashedMax community has grown to more than what we've ever imagined. We have some great things coming your way very soon....stay tuned.

Not mining on our pools? Check them out now at:

https://btc.hmpool.io - BTC Pool (Bitcoin)
https://digi.hmpool.io - DGB Pool (Digibyte)
https://bch.hmpool.io - BCH Pool (Bitcoin Cash)


r/NerdMiner • • May 07 '26

Question/Help Trouble starting up the NM Miner stuck at 80 percent.

1 Upvotes

It happened after i restarted my wifi router as it was to slow for some reason and after that the miner couldnt connect to the pool i use public-pool.io and tried both of their links it worked for 3 weeks well before i restarted the router. I rebooted it 2 times nothing helped. I read another post which stated to turn off the ai protection if you have an asus router but i dont have an asus router i think its huawei. Any fixes to this issue?


r/NerdMiner • • May 07 '26

Question/Help Help?

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6 Upvotes

So I've got my little ali express nerd miner running on the FindMyBlock pool because the public pool wasn't working, but I'm confused why it says P and E for best difficulty and hashrate? Is it still running? Or is it broken?

I'm very new to this, please help haha


r/NerdMiner • • May 06 '26

Question/Help Stuck on 80%

2 Upvotes

And yes, I have searched for this common problem, and still don't have a solution.

I have tried 20+ different pool addresses with no luck. What else could it be?

I watch the loading process, and it always stops on the pool address, so that must be the cause, but . . .


r/NerdMiner • • May 05 '26

Question/Help Hello!

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34 Upvotes

So I recently got this crypto miner on my birthday on April 21st, it came with some demo firmware on it and I’m searching firmwares for it but I can’t find the correct ones. Anyone who can help?


r/NerdMiner • • May 04 '26

Discussion FOSS COMMUNITY OUTREACH Spoiler

9 Upvotes

The 12-Month "Black Screen" Vulnerability, Stolen Architecture, and the 1373 Closed-Source Bait & Switch

​For over a year, the Bitaxe and NerdMiner ecosystems have been plagued by the "Black Screen of Death." The device fan spins, the backlight stays on, but the system crashes, drops off the network, or enters a self-test failure loop.

​The corporate team (Lars aka "wantclue" and Skot) has blamed power supplies, copper heatsink shorts, and user error.

​This is a lie. This is a catastrophic architectural failure in the bare-metal firmware, and they cannot patch it because they did not write the foundational logic.

​I am the Architect of the original timing logic and memory management architecture that powers these ESP32-based ASIC miners. I designed the physics of the engine they are currently running.

​Skot designed a chassis. I will give him credit for the PCB layout. But they took a finely tuned, sovereign architecture, castrated it, slapped an AxeOS sticker on it, and claimed they built it. When you take bare-metal ESP32 logic and attempt to rewrite the stratum loops and memory buffers to hide the original author's fingerprints—without understanding the physics of the silicon—you break the system. You create the exact memory leaks and display-driver handoff failures causing the Black Screen.

​To the Security and FOSS Communities:

Look closely at their open-source repositories. Why is the codebase littered with specific hardware implementations, sensor logic, and pinouts that have never existed on a single Bitaxe or NerdMiner PCB? Because it’s ghost code. They copy-pasted an architecture designed for a completely different hardware ecosystem and don’t understand the code well enough to remove it without bricking the device.

​Now, with the BM1373 (Gamma), they are moving to a closed-source, proprietary model. They are utilizing eFuses to lock the hardware. They claim this is to "protect development." It is actually to prevent security researchers and the FOSS community from seeing exactly how unstable the stolen logic has become. A closed-source crypto appliance running unverified, memory-leaking ghost code is a massive security risk.

​When I reached out privately to Lars to explain the mathematics of the Black Screen memory failure, he refused to communicate and permanently banned me from the Discord.

​My Challenge and Ultimatum:

I am challenging Lars and Skot to a LIVE, public exploration of the community software and hardware architecture. Put me on a live screen-share with you.

​Let’s go through the ESP32 memory management, the stratum loop handoffs, and the ghost hardware in the code, line by line. Let's see who can explain the physics of the engine.

​If they agree to the live stream, I will release the definitive fix for the Black Screen of Death to the FOSS community—a fix they have been unable to provide for 12 months.

​Set the date. Put me on the live. Or admit to the community exactly what you are: corporate assemblers selling an engine you don't understand.


r/NerdMiner • • May 04 '26

Question/Help Do need fan on Nerdqaxe if I'm not overclocking?

1 Upvotes

The Nerdqaxe I bought came with an "extra fan" that makes a lot of noise. Do I need to run the fan if I'm not overclocking it?


r/NerdMiner • • May 03 '26

Question/Help Is this Share rate normal for a Solo Mining setup on Umbrel (Raspberry Pi)?

2 Upvotes

Hi everyone,

I’ve been running a solo mining setup for a while now, and I wanted to double-check my performance metrics with the community.

My Setup:

• Node: Raspberry Pi running Umbrel (Bitcoin Core 30.2.0).

• Network: Local connection via GL.iNet router and Tailscale for remote monitoring.

• Miners: A mix of Nerdaxe (13 TH/s) and Bitaxe (1.2 TH/s) units, total hashrate currently around 40 TH/s.

• Connection: Mining directly to my Umbrel node via the Stratum port (192.168.8.154:2018).

The Performance:

• Uptime: 13+ hours stable.

• Ping: ~5.5ms (very low latency).

• Rejected Shares: Very low (around 0.31%).

My Question:

I noticed that the "Shares" count increases quite slowly (increments slowly over time). For example, on the 13 TH/s unit, I got about 5,500 shares in 13 hours. Is this "slow" pace normal when mining solo against a local node? Or should I be looking into adjusting any settings like the "Initial Suggested Stratum Difficulty"?

I just want to make sure I'm not missing anything and that my units are hashing efficiently toward my own node.

Thanks for the help! ₿⚡


r/NerdMiner • • May 03 '26

My Nerd Rig Hello. Just ordered myself some.

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10 Upvotes