Heltec V4: Practice. Flashing, Setup, First Messages. Part 2
📌 This is Part 2 of the series. Part 1: Theory explains why this matters. 📦 Unboxing and Preparation Heltec V4 Contents Component Purpose Board ~60×30 mm ESP32-S3R2 + SX1262, OLED 128×64, USB-C Antenna (IPEX) Connect to ANT port - mandatory! USB-C cable Power + flashing + debugging Pins (optional) For external sensors/antennas ⚠️ Important: without antenna connected, the radio module may be damaged. Always attach antenna before powering on. Heltec V4 Specifications Component Description MCU ESP32-S3R2 (WiFi + Bluetooth) LoRa Transceiver Semtech SX1262 Frequencies 863–870 MHz (EU), 902–928 MHz (US) Display 0.96" OLED 128×64 Power Up to +28±1 dBm (High Power option) Power Supply USB-C + optimized LiPo management Connectors USB-C, U.FL/IPEX for LoRa, 1.25-8Pin GNSS, 1.25-2Pin Solar Form Factor Pin-compatible with V3/V3.1 ⚡ Flashing: Web Flasher Official flasher: https://flasher.meshtastic.org ...