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description=NerdNOS setup guide: flash firmware, configure WiFi, connect to a solo mining pool, and start hashing on your ESP32-S3 open-source miner.;

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physically cannot see or connect to 5 ghz networks if your router uses a combined ssid for both bands the esp32 should auto connect to 2 4 ghz but if you experience issues create a dedicated 2 4 ghz only network in your router settings this is the single most common setup issue with all esp32 based miners step 4 enter your bitcoin address on the same configuration page you will find a field for your bitcoin wallet address this is the address where block rewards would be sent if your nerdnos finds a block open your self custody bitcoin wallet sparrow electrum bluewallet coldcard trezor or any wallet where you control the private keys copy a receive address we recommend a bc1 native segwit bech32 address for lowest fees paste it into the btc address field double check the address triple check it this is where a 3 125 btc block reward would go ️ self custody only not your keys not your coins never use an exchange deposit address coinbase binance kraken etc for mining exchanges can change deposit addresses without warning freeze your account or refuse mining related deposits use a wallet where you control the private keys this is bitcoin mining sovereignty is the entire point step 5 save and connect review your settings wifi name wifi password bitcoin address and click save the nerdnos will store the configuration in non volatile flash memory shut down the ap mode wifi network connect to your home wifi network connect to the configured mining pool begin mining automatically since there is no display you will not get a visual confirmation the status led should change its pattern to indicate a successful wifi connection typically solid on or a different blink pattern to confirm the nerdnos is mining check your mining pool s web dashboard see pool configuration or access the device s web interface on your local network pool configuration the nerdnos firmware comes with solo ckpool as the default mining pool the same default used by the nerdminer for a cpu miner at this hashrate solo mining is the only strategy that makes any sense pool mining would earn you fractions of a satoshi per year never enough to reach a payout threshold solo mining gives you a shot at the full 3 125 btc block reward long odds but never zero recommended solo mining pools solo ckpool default solo ckpool org 3333 the original solo mining pool maintained by con kolivas zero fees your bitcoin address is your username if your device finds a block the full reward goes to you the most battle tested solo pool in bitcoin public pool public pool io 21496 open source solo mining pool popular with the bitaxe and nerdminer communities zero fees clean web dashboard at web public pool io where you can monitor your nerdnos by entering your bitcoin address excellent for headless devices because the dashboard provides the monitoring your nerdnos lacks ocean mine ocean xyz 3334 decentralized mining pool focused on transparency and non custodial payouts supports small miners a strong choice for miners who prioritize decentralization in their pool selection too to change the pool access the nerdnos configuration portal either by forcing ap mode or via the web interface at the device s local ip and update the pool url and port fields the password field is typically x for all of these pools public pool is ideal for headless devices since the nerdnos has no screen public pool is an excellent choice because of its web dashboard navigate to the dashboard enter your bitcoin address and you can monitor your nerdnos hashrate shares best difficulty and uptime from any device your phone your laptop anywhere it is the closest thing to a remote display for your headless miner web interface walkthrough once the nerdnos is connected to your home wifi network you can access its built in web interface from any device on the same network this is your primary tool for monitoring and configuring the nerdnos it replaces the screen that the nerdminer has finding the device ip address the nerdnos gets an ip address from your router via dhcp when it connects to wifi to find it check your router s admin panel log into your router usually 192 168 1 1 or 192 168 0 1 and look at the connected devices list the nerdnos will appear with a hostname like nerdminer or esp32 or similar use a network scanner app apps like fing ios android or advanced ip scanner windows will list all devices on your network with their hostnames and ip addresses check serial output if you have the nerdnos connected to a computer via usb the serial output will print the assigned ip address on boot see serial debugging once you have the ip address for example 192 168 1 42 open a web browser on any device connected to the same network and navigate to web interface url copy http 192 168 1 42 replace the ip address with your nerdnos s actual ip dashboard overview the web interface provides a clean dashboard with the following information hashrate current mining speed in kh s expect approximately 80 120 kh s depending on your board variant and firmware version shares total number of valid shares submitted to the mining pool since last boot this number should steadily climb best difficulty the highest difficulty share your nerdnos has found this is your personal record your closest brush with solving a block higher is better uptime how long the device has been running since the last reboot wifi signal strength rssi value indicating how strong the wifi connection is anything above 70 dbm is good below 80 dbm may cause connection drops pool status whether the device is currently connected to the mining pool and actively submitting work free memory available heap memory on the esp32 s3 useful for debugging configuration settings from the web interface you can update all settings without needing to re enter ap mode wifi credentials change your wifi ssid and password bitcoin address update your mining reward address pool settings change pool url and port device settings adjust firmware specific options like hostname and timezone after changing any settings click save the nerdnos will reboot and apply the new configuration bookmark the page you will want to check in on your headless miner periodically ℹ️ set a static ip for reliable access your router assigns a dynamic ip address to the nerdnos via dhcp which means the ip could change after a reboot or power cycle to ensure you can always reach the web interface at the same address set a dhcp reservation also called a static lease in your router for the nerdnos s mac address this way the router always assigns the same ip to your miner check your router s documentation for how to configure dhcp reservations performance expectations let s talk real numbers no hype no sugarcoating just the math the probabilities and why the nerdnos matters despite those numbers hashrate reality the nerdnos hashes at approximately 80 120 kh s let s use 100 kh s as a round number that is 100 000 sha 256 double hashes per second the bitcoin network s total hashrate fluctuates between 600 900 eh s exahashes per second one exahash is 1 000 000 000 000 000 000 hashes per second your nerdnos represents roughly one ten trillionth of the total network hashrate nerdnos vs the network probability context nerdnos hashrate 100 kh s 100 000 h s bitcoin network hashrate 700 eh s 700 000 000 000 000 000 000 h s nerdnos share of network 0 000000000000014 expected time to find a block 40 000 years statistical average block reward if found 3 125 btc full block subsidy transaction fees monthly electricity cost 0 50 probability of block per year 0 0000025 but never zero the probability discussion those numbers look bleak forty thousand years is a long time to wait but here is what the raw statistics do not capture every single hash is independent the hash your nerdnos computes right now has the exact same probability of being the winning hash as any hash computed by a warehouse full of antminer s21 pro s the hash does not know what device computed it it does not know your total hashrate it does not know how long you have been mining it either meets the difficulty target or it does not this is pure cryptographic lottery and in a lottery someone with one ticket can win just as surely as someone with a million tickets the odds are different but the outcome per ticket is identical solo miners with tiny hashrates have found blocks it has happened multiple times in bitcoin s history it is rare genuinely rare but it is not impossible and when it happens the winner takes the entire block reward no splitting with a pool no proportional payouts just 3 125 btc deposited directly to your address the real value of running a nerdnos the nerdnos is not a money making machine if you run it expecting profit you will be disappointed but if you understand what it actually is a sovereign silent always on contribution to the bitcoin network it becomes something far more valuable than a profit calculation can capture education by doing understanding mining at the protocol level hashing nonces difficulty stratum shares these become tangible when a device you own is doing them network participation you are running your own mining hardware no custodian no permission no account your device your keys your hashrate your rules decentralization in practice every miner on the network no matter how small contributes to bitcoin s censorship resistance geographic and hardware diversity makes bitcoin stronger your nerdnos is a statement about what kind of network you want bitcoin to be zero maintenance background process the nerdnos sits behind your router draws pennies of electricity makes no noise generates no heat and mines 24 7 365 set it up once and forget about it it costs you nothing to run and requires nothing from you the gateway for many people a nerdnos or nerdminer is the first domino it leads to a nerdaxe then a bitaxe then a space heater then a closet full of miners the rabbit hole starts here troubleshooting the nerdnos is one of the simplest mining devices in existence no screen to break no fan to fail no asic chip to overheat but issues can still arise primarily around wifi connectivity and firmware here are the most common problems and their solutions wifi connection issues symptoms the nerdnos cannot connect to your wifi repeatedly falls back to ap mode or connects but drops frequently solutions verify 2 4 ghz this is the number one issue the esp32 s3 cannot see 5 ghz networks if your router uses band steering combined ssid create a dedicated 2 4 ghz only ssid for testing check ssid and password re enter the captive portal power cycle to force ap mode and verify the wifi name and password are exactly correct ssids are case sensitive move closer to the router the esp32 s built in antenna has limited range place the nerdnos within a few meters of your router for initial setup once confirmed working move it to its permanent location avoid special characters characters like in your wifi name or password can sometimes cause issues with the configuration portal s form parsing try a simpler password temporarily to isolate the issue check wifi signal strength if you can access the web interface check the rssi value below 80 dbm indicates a weak signal reposition the device or consider a wifi extender check router client limit some routers cap the number of simultaneous wifi clients if you have many iot devices you may be hitting the limit reboot your router sometimes the simplest fix routers can become sluggish at managing connections after running for weeks without a restart firmware problems symptoms the nerdnos is unresponsive stuck in a boot loop does not create an ap on first boot or the status led behaves unexpectedly solutions power cycle unplug usb wait 10 seconds replug simple but effective for transient crashes force bootloader mode hold boot press reset release both this puts the esp32 s3 into programming mode bypassing corrupted firmware re flash firmware use the web flasher or esptool to re flash the latest stable nerdminer firmware see the firmware flashing section above erase flash first if re flashing does not help erase the entire flash memory first esptool py chip esp32s3 port com3 erase_flash then re flash this clears any corrupted configuration data you will need to reconfigure wifi and pool settings afterwards try a different usb cable a damaged or data only charge only usb cable can cause firmware flashing to fail silently use a cable you know supports data transfer try a different usb port usb hubs and usb 3 0 ports can sometimes cause issues with esp32 serial communication try a direct usb 2 0 port on your computer serial debugging for advanced troubleshooting the nerdnos outputs diagnostic information over its usb serial connection this is the most powerful debugging tool for headless devices connect the nerdnos to your computer via usb open a serial terminal use putty windows screen macos linux or the arduino ide serial monitor set the baud rate to 115200 select the correct com port same port used for firmware flashing serial connection macos linux copy screen dev ttyusb0 115200 the serial output will show you boot messages firmware version chip info flash size wifi status connection attempts assigned ip address signal strength pool connection stratum connection status subscription messages mining activity hashrate shares found difficulty errors wifi timeout pool connection failures memory issues this serial output is invaluable for diagnosing why a headless nerdnos is not behaving as expected if the device cannot connect to wifi the serial output will tell you exactly why if the pool connection is failing you will see the error messages in real time no shares being submitted symptoms the nerdnos appears to be running led on connected to wifi but the pool dashboard shows no activity from your address solutions verify pool settings check the pool url and port via the web interface a wrong port number is a common mistake check bitcoin address ensure the address is valid and correctly formatted an invalid address causes the pool to reject all work wait patiently at 80 120 kh s the first share submission may take several minutes depending on the pool s minimum difficulty setting try a different pool switch from solo ckpool to public pool or vice versa to rule out pool side issues check serial output connect via usb serial and look for pool connection errors or share rejection messages check dns firewall some networks block outbound connections on non standard ports try setting your dns to 1 1 1 1 or 8 8 8 8 in your router settings the nerd family where nerdnos fits the nerdnos is one device in a growing ecosystem of open source mining hardware here is how the full nerd lineup compares and the natural upgrade path as your mining ambitions grow open source miner comparison nerdminer 50 the desk companion esp32 s3 with a color tft display 78 kh s 1w usb powered beautiful display cycling through mining stats bitcoin clock an...