⛏️ Mining Connection Guide
From ESP32s to Industrial ASICs — every hash counts
⚠️ IMPORTANT: Choose the correct port for your miner's hashrate. Connecting a high-hashrate miner to the wrong port can cause performance issues and may result in disconnection.
Choose Your Port
🔧 Port 3337 - Hobby & Low-Power Miners
3337 Up to 10 MH/sPerfect For:
- ESP32 miners (typically ~0.1 to 5 MH/s)
- NerdMiner-class devices
- Raspberry Pi miners
- Educational and hobby mining devices
- Any ultra-low-power miner
Features:
- Starting difficulty: 0.01
- VarDiff range: 0.01 - 0.1
- Frequent share submissions for instant feedback
- Target: 1 share every 15 seconds
Connection Example:
stratum+tcp://hmpool.io:3337
Username: YOUR_BITCOIN_ADDRESS
Password: x
Username: YOUR_BITCOIN_ADDRESS
Password: x
⚡ Port 3335 - Mid-Range Miners
3335 10 MH/s to 2 GH/sPerfect For:
- USB stick miners (e.g. GekkoScience)
- Small FPGA miners
- Any miner in the MH/s to low GH/s range
Features:
- Starting difficulty: 1
- VarDiff range: 1 - 512
- Automatic difficulty adjustment
- Target: 1 share every 15 seconds
Connection Example:
stratum+tcp://hmpool.io:3335
Username: YOUR_BITCOIN_ADDRESS
Password: x
Username: YOUR_BITCOIN_ADDRESS
Password: x
🏭 Port 3336 - ASIC Miners
3336 2 GH/s and abovePerfect For:
- Bitaxe (often ~0.5–3 TH/s depending on model and tuning)
- Antminer S9 (13-14 TH/s)
- Antminer S19 series (90-110 TH/s)
- Whatsminer M30S+ (100+ TH/s)
- Any dedicated ASIC miner above 2 GH/s
- Mining farms and large operations
Features:
- Starting difficulty: 1,024
- VarDiff range: 1,024 - 1,048,576
- Automatic difficulty adjustment for any hashrate
- Target: 1 share every 15 seconds
- Handles up to PH/s-class miners
Connection Example:
stratum+tcp://hmpool.io:3336
Username: YOUR_BITCOIN_ADDRESS
Password: x
Username: YOUR_BITCOIN_ADDRESS
Password: x
Difficulty Reference Table
| Hashrate | Recommended Port | Difficulty Range | Example Miners |
|---|---|---|---|
| Up to 10 MH/s | 3337 | 0.01 - 0.1 | ESP32 miners, NerdMiner-class devices, hobby devices |
| 10 MH/s - 2 GH/s | 3335 | 1 - 512 | USB stick miners, small FPGAs, experimental rigs |
| 2 GH/s and above | 3336 | 1,024 - 1,048,576 | Bitaxe, Antminer S9/S19, Whatsminer, ASIC farms |
📊 Pool Information
- Pool Fee: 2% (competitive and fair)
- Payout Scheme: PPLNS (Pay Per Last N Shares)
- Minimum Payout: 0.0001 BTC
- Bech32 Support: Yes (bc1... addresses)
- Payment Interval: Every 10 minutes
- Network: Bitcoin Mainnet
💡 Pro Tip: If you're unsure which port to use, start with the higher port number for your hashrate range. The pool will automatically adjust difficulty to optimize your mining experience.