{"product_id":"the-field-link-lora-esp32","title":"The Field Link | ESP32 LoRa Development Board with 0.96 Inch OLED (868-915MHz)","description":"\u003cdiv class=\"product-narrative\"\u003e\n\u003cp\u003eSome networks end at the router. LoRa begins where the router stops: across a farm, through a warehouse, along a coastline, over three kilometers of open ground. The Field Link is a WiFi LoRa 32 V3 development board from Heltec Automation, pairing a dual-core ESP32-S3 processor with an SX1262 LoRa transceiver and a 0.96 inch 128x64 OLED display, so a single board can sense, compute, display, and transmit without a second device in sight.\u003c\/p\u003e\n\u003cp\u003eThe engineering story is in the details. The ESP32-S3FN8 runs two Xtensa LX7 cores at up to 240 MHz, with 4 MB of flash and support for Wi-Fi 802.11 b\/g\/n, classic Bluetooth and BLE, all in one package. The LoRa side reaches a receiver sensitivity of -139 dBm at SF12 with a 125 kHz bandwidth, which is how the board sustains long-range links on milliwatts of power. A Type-C USB interface with ESD protection, short-circuit protection, and RF shielding keeps the board honest in the field, not just on the bench.\u003c\/p\u003e\n\u003cp\u003eFor developers, the path from idea to deployment is short: full Arduino support, LoRaWAN protocol source code for ESP32, 29 general-purpose GPIOs, 12-bit ADC, 8-bit DAC, three UARTs, two SPI, two I2C, and a CP2102 USB bridge. It is the board you reach for when the project has to leave the desk and survive the real world, from smart agriculture to industrial telemetry.\u003c\/p\u003e\n\u003cp\u003eEvery Field Link ships with the antenna, the documentation, and the software resources you need to boot your first LoRa packet within an evening. The board runs cool, the OLED gives you instant feedback on link status and packet counts, and the Type-C connector means one cable works for power, programming, and serial debugging. For teams, the consistent pinout across V2 and V3 keeps existing carrier boards and enclosures reusable across hardware revisions.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis is not a development board. It is a field radio with a keyboard attached to your imagination.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-features\" style=\"margin-top:24px;\"\u003e\n\u003ch3 style=\"font-size:18px;margin-bottom:10px;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;margin:0;\"\u003e\n\u003cli style=\"padding:6px 0;border-bottom:1px solid #f0f0f0;\"\u003e✦ Dual-core ESP32-S3 (2x Xtensa LX7, up to 240 MHz) with 4 MB flash\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;border-bottom:1px solid #f0f0f0;\"\u003e✦ SX1262 LoRa node chip for 868-915 MHz long-range radio links\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;border-bottom:1px solid #f0f0f0;\"\u003e✦ 0.96 inch 128x64 OLED display for on-device status and data\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;border-bottom:1px solid #f0f0f0;\"\u003e✦ Wi-Fi 802.11 b\/g\/n plus classic Bluetooth and BLE dual mode\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;border-bottom:1px solid #f0f0f0;\"\u003e✦ Type-C USB with ESD protection, short-circuit protection, and RF shielding\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;border-bottom:1px solid #f0f0f0;\"\u003e✦ Onboard SH1.25-2 battery interface with lithium battery management\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;border-bottom:1px solid #f0f0f0;\"\u003e✦ 29 general-purpose GPIOs, 12-bit ADC, 8-bit DAC, 3x UART, 2x SPI, 2x I2C\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;border-bottom:1px solid #f0f0f0;\"\u003e✦ Full Arduino support and LoRaWAN protocol source code provided\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-specs\" style=\"margin-top:24px;\"\u003e\n\u003ch3 style=\"font-size:18px;margin-bottom:10px;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;margin:0;\"\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eMCU:\u003c\/strong\u003e ESP32-S3FN8, dual-core Xtensa LX7, up to 240 MHz\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eLoRa chip:\u003c\/strong\u003e SX1262 (V3) \/ SX1276 (V2)\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eFrequency bands:\u003c\/strong\u003e 868-915 MHz, 923 MHz (EU 863-870, US 902-928)\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eReceiver sensitivity:\u003c\/strong\u003e -139 dBm (SF12, BW125kHz)\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e 0.96 inch 128x64 OLED\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eFlash:\u003c\/strong\u003e 4 MB SPI flash (32 Mbit)\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eWorking voltage:\u003c\/strong\u003e 3.3V - 7V\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e -40 to 80 C\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eUSB bridge:\u003c\/strong\u003e CP2102, Type-C interface\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eAntenna:\u003c\/strong\u003e IPEX connector, external LoRa antenna included\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eOpen communication distance:\u003c\/strong\u003e Up to 3 km line of sight\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eProcessing power:\u003c\/strong\u003e Up to 600 DMIPS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-applications\" style=\"margin-top:24px;\"\u003e\n\u003ch3 style=\"font-size:18px;margin-bottom:10px;\"\u003eWho It Is For\u003c\/h3\u003e\n\u003cp\u003eThe Field Link is the backbone of projects that refuse to stay indoors: soil moisture sensors reporting from the far end of an orchard, water meters whispering readings from utility cabinets, air quality nodes scattered across a city block, and warehouse trackers that outlast a shift without a charge. Makers use it to build LoRaWAN gateways and weather stations; engineers use it to prototype industrial control links; students use it to learn radio fundamentals with hardware that documents itself on the OLED. Wherever Wi-Fi gives up, this board keeps talking.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\" style=\"margin-top:30px;\"\u003e\n\u003ch3 style=\"font-size:18px;margin-bottom:12px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What frequency band should I choose?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChoose 433-510 MHz for regions using sub-GHz ISM bands in that range, or 863-928 MHz for EU and US LoRa allocations. The V3 variant covers 868-915 MHz with the SX1262 chip.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does it support Arduino?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The board is fully supported by the Arduino ecosystem, and Heltec provides the LoRaWAN protocol source code running on ESP32, plus technical support.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the real-world range?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn open terrain, the LoRa link sustains up to about 3 kilometers at low data rates. In dense urban environments, expect shorter ranges; the IPEX antenna connector lets you attach a higher-gain antenna.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can it run on battery?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The onboard SH1.25-2 battery interface includes lithium battery management, and the board operates from 3.3V to 7V, making low-power field deployments straightforward.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does it include Wi-Fi and Bluetooth?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, Wi-Fi 802.11 b\/g\/n, classic Bluetooth, and BLE low-power dual mode are all onboard, alongside LoRa.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the pin header soldered?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the pin headers ship unsoldered by default, so you can solder them to fit your enclosure or wiring plan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-gallery\" style=\"margin-top:30px;text-align:center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sba8f74e2fd7e4328b66094d5432b8b576.webp?v=1730768952\" alt=\"The Field Link | ESP32 LoRa Development Board with 0.96 Inch OLED (868-915MHz)\" style=\"width:100%;max-width:640px;border-radius:8px;margin:10px auto;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S7b1139dc6ec84b5d967035944baacd08u.webp?v=1730768953\" alt=\"The Field Link | ESP32 LoRa Development Board with 0.96 Inch OLED (868-915MHz)\" style=\"width:100%;max-width:640px;border-radius:8px;margin:10px auto;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S2d9a6e774420450987905485f7a2234dQ.webp?v=1730768953\" alt=\"The Field Link | ESP32 LoRa Development Board with 0.96 Inch OLED (868-915MHz)\" style=\"width:100%;max-width:640px;border-radius:8px;margin:10px auto;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S9d46fed9ae7c4101b21d84bad4b3e12fX.webp?v=1730768953\" alt=\"The Field Link | ESP32 LoRa Development Board with 0.96 Inch OLED (868-915MHz)\" style=\"width:100%;max-width:640px;border-radius:8px;margin:10px auto;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sc892d417158648d49dbef064eee0f974T.webp?v=1730768953\" alt=\"The Field Link | ESP32 LoRa Development Board with 0.96 Inch OLED (868-915MHz)\" style=\"width:100%;max-width:640px;border-radius:8px;margin:10px auto;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S0dc088d7bf544fbb89ae65c8c9d205e2D.webp?v=1730768953\" alt=\"The Field Link | ESP32 LoRa Development Board with 0.96 Inch OLED (868-915MHz)\" style=\"width:100%;max-width:640px;border-radius:8px;margin:10px auto;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S89f756184731419784c1d92d826a7670a.webp?v=1730768953\" alt=\"The Field Link | ESP32 LoRa Development Board with 0.96 Inch OLED (868-915MHz)\" style=\"width:100%;max-width:640px;border-radius:8px;margin:10px auto;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Se18a473e3cd549adb17b629975f42cd6n.webp?v=1730768953\" alt=\"The Field Link | ESP32 LoRa Development Board with 0.96 Inch OLED (868-915MHz)\" style=\"width:100%;max-width:640px;border-radius:8px;margin:10px auto;display:block;\"\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"The Field Link | ESP32 LoRa Development Board with 0.96 Inch OLED (868-915MHz)\",\"image\":\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sba8f74e2fd7e4328b66094d5432b8b576.webp?v=1730768952\",\"description\":\"Some networks end at the router. LoRa begins where the router stops.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"EastSupplier\"},\"sku\":\"ES-8842363338975\",\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/eastsupplier.com\/products\/the-field-link-lora-esp32\",\"priceCurrency\":\"USD\",\"price\":\"110.51\",\"availability\":\"https:\/\/schema.org\/InStock\",\"itemCondition\":\"https:\/\/schema.org\/NewCondition\"},\"aggregateRating\":{\"@type\":\"AggregateRating\",\"ratingValue\":\"4.8\",\"reviewCount\":\"18\"}}\n\u003c\/script\u003e","brand":"East Supplier Platform","offers":[{"title":"433-510MHz V3","offer_id":46434187018463,"sku":"1005005164597367-433-510MHz V3","price":110.51,"currency_code":"USD","in_stock":true},{"title":"863-928MHz V3","offer_id":46434187051231,"sku":"1005005164597367-863-928MHz V3","price":110.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sba8f74e2fd7e4328b66094d5432b8b576.webp?v=1730768952","url":"https:\/\/eastsupplier.com\/en-fr\/products\/the-field-link-lora-esp32","provider":"EastSupplier Platform","version":"1.0","type":"link"}