{"product_id":"heltec-lora-esp32-oled-display-iot-board-with-wifi-bluetooth","title":"Heltec LoRa ESP32 OLED Display IoT Board with WiFi \u0026 Bluetooth","description":"\u003ch1\u003eHeltec LoRa ESP32 OLED Display IoT Development Board (WiFi\/Bluetooth)\u003c\/h1\u003e\n\n\u003cp\u003eThe Heltec LoRa ESP32 board combines an ESP32 microcontroller with WiFi and Bluetooth, a Semtech SX1276 LoRa transceiver, and a 0.96-inch 128x64 OLED display. It’s ideal for long-range, low-power IoT applications such as sensor networks, asset tracking, and smart agriculture. The integrated display simplifies debugging and real-time data monitoring.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMicrocontroller\u003c\/td\u003e\n\u003ctd\u003eESP32-D0WDQ6, dual-core Xtensa LX6\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLoRa Transceiver\u003c\/td\u003e\n\u003ctd\u003eSemtech SX1276\/78 (868\/915 MHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e0.96\" OLED, 128×64 pixels, I2C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWireless\u003c\/td\u003e\n\u003ctd\u003eWiFi 802.11 b\/g\/n, Bluetooth 4.2 BLE\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMemory\u003c\/td\u003e\n\u003ctd\u003e4 MB Flash, 520 KB SRAM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V (5V via USB, 3.7V LiPo)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/lora-weather-station-kit-with-gps-and-arduino-compoden\"\u003eRemote weather station with LoRa data uplink\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/esp32-gps-tracker-kit-build-a-live-tracking-dashboard\"\u003eGPS tracker displaying coordinates on the OLED\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-wifi-mesh-network-5-nodes\"\u003eMesh network sensor nodes for precision agriculture\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eLong-range Bluetooth-to-LoRa gateway\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eWorks with Arduino IDE, MicroPython, and ESP-IDF. Fully compatible with any 3.3V logic sensors and modules. Breadboard-friendly pin headers. Commonly paired with DHT22, GPS modules, and soil moisture sensors.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect a 3.7V LiPo battery to the JST connector for portable use; the onboard charger handles USB charging. Always attach the LoRa antenna before powering. LoRa uses SPI (SS=18, SCK=5, MOSI=27, MISO=19) and OLED uses I2C (SDA=4, SCL=15). Avoid hot-plugging peripherals.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino IDE?\u003c\/summary\u003e\u003cp\u003eYes, the Heltec board is fully supported via the ESP32 board manager. Install the Heltec ESP32 library for LoRa and OLED functions.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat LoRa frequency does this board support?\u003c\/summary\u003e\u003cp\u003eThis variant supports the 868\/915 MHz band, suitable for India and most regions. Please confirm your local regulations before deployment.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it include the antenna?\u003c\/summary\u003e\u003cp\u003eYes, a helical antenna is included. For longer range, an external antenna can be attached via the U.FL connector.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53444962550125,"sku":"CDN-0450","price":2580.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_4a788ec4-33f7-4ef7-9686-32891d4a4d2d.jpg?v=1781512579","url":"https:\/\/compoden.com\/products\/heltec-lora-esp32-oled-display-iot-board-with-wifi-bluetooth","provider":"Compoden","version":"1.0","type":"link"}