[Professional ASIC Miner Repair Training - Covering Antminer, for Whatsminer, and for Models] Course Coverage: Hashboard repair and control board diagnostics Power supply maintenance and system optimization Troubleshooting common failures and chip-level repair techniques Step-by-step skill development from basic to professional level NerdMiner 2.8inch - Bitcoin Solo Miner with Display. The NerdMiner 2.8inch is an open-source, educational hardware project that lets you solo mine Bitcoin using a compact, efficient device. It's designed to help users learn about cryptocurrency mining while serving as an attractive desktop accessory. Easy setup: Connect to WiFi, enter your Bitcoin wallet address, and power via Micro-USB. Low power consumption (a few ), compatible with mini solar panels. Pre-loaded with latest mining firmware (v1.8.3) and tested for 340 /s hash rate. Multi-screen interfaces: Monitor mining data, view a stylish clock, or check global . Supports multiple public solo pools by default 24/7 technical and tutorial support provided. How It Works: The ESP32-based device uses Stratum protocol to mine on solo pools. Button Controls: BOOT: once to switch screens. Hold for 6-9 seconds to enter settings and reconfigure WiFi/pool. REST: Restart without reconfiguration. Ideal For: for Beginners exploring crypto mining, tech enthusiasts, and as a gift or desktop decoration. Specially optimized algorithm firmware enhances the hashrate to 410KH/s, increasing the probability of winning the lottery by 680% (Nerdminer v2 only 55KH/s). The display turn off after 1 minute without operation, and you can wake up the screen by pressing any key to avoid light pollution. Master Chip: ESP32-WROOM-32 Wi-Fi: 802.11 b/g Bluetooth: Bluetooth LE: Bluetooth 4.2 Hardware Resource: UART, SPI, SDIO, , PWM, I2S, ADC Memory: 384KB ROM; 512KB ; 16KB RTC ; 8MB SiP Flash Interface: Type-C USB; GPIO: 22 Antenna Gain: Board Antenna, 2dBi Operation Temperature: -20 ~70 ESP32-WROOM-32 Module, support Wi-Fi and BLE. Optimized Software that achieves a higher Harshrate of 410KH/s. Hashrate increases by 680% more than other boards from , which means 680% more chances of winning. Standalone: can work as a BTClottery minerdirectly over WiFi. No External computer is needed. Embedded: low cost, low maintenance, high availability, high reliability, low power. Versatile: solo/pool mining. ESP32-S3R8 MCU wifi microcontroller on board. Color: As Shown Material: plastic Package Contents: 1 * NM MINER Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.