{"product_id":"heltec-esp32-lora-32-v4-development-board-with-oled-display","title":"Heltec ESP32 LoRa 32 V4 Development Board with OLED Display","description":"\u003ch3\u003eDescription \u003c\/h3\u003e\n\u003cp\u003eA development board from Heltec based on a ESP32-S3 microcontroller by Espressif. Thanks to the built-in USB connector, it is easy to program. Things can be shown on the built-in OLED display. For extra connectivity, the board has multiple wireless communication interfaces (including Wi-Fi\/Bluetooth\/LoRa). Finally, the board has a battery connector where a Li-Po\/Li-ion battery (not included) can be connected, which can also be charged via the board.\u003c\/p\u003e\n\u003cp\u003eCompared to the V3, this version features upgrades like solar charging and increased storage capacity.\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eNote\u003c\/u\u003e: Not all countries allow LoRa signals to be transmitted on 868MHz with a power of 28dBm (630mW, maximum of this module). In the Netherlands, for example, this maximum is 20dBm (100mW) around 868MHz (with the exception of between 869.40 - 869.65MHz, which may be a maximum of 27dBm (500mW)). Therefore, set the maximum transmission power in such a way that it complies with local laws and regulations.\u003c\/p\u003e\n\u003cp\u003eSee the following page for more information:\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/wiki.heltec.org\/docs\/devices\/open-source-hardware\/esp32-series\/lora-32\/wifi-lora-32-v4\/\" target=\"_blank\"\u003eWiki\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eSee the following page for more information:\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/heltec.org\/project\/wifi-lora-32-v4\/\" target=\"_blank\"\u003eManufacturer page\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eSpecifications \u003c\/h3\u003e\n\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:43520071-7110-48a9-bc1e-e8ba74c4905f-3\" data-testid=\"conversation-turn-4\" data-scroll-anchor=\"true\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"aa8234c2-c1d8-43ef-9853-d214756c76d1\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003ch4 data-start=\"0\" data-end=\"12\"\u003eGeneral\u003c\/h4\u003e\n\u003cul data-start=\"13\" data-end=\"200\"\u003e\n\u003cli data-section-id=\"1amwp8a\" data-start=\"13\" data-end=\"30\"\u003eBrand: Heltec\u003c\/li\u003e\n\u003cli data-section-id=\"n5d2i6\" data-start=\"31\" data-end=\"54\"\u003eModel: HTIT-WB32LAF\u003c\/li\u003e\n\u003cli data-section-id=\"n2x77i\" data-start=\"55\" data-end=\"73\"\u003eRevision: V4.3\u003c\/li\u003e\n\u003cli data-section-id=\"1e0qbkg\" data-start=\"74\" data-end=\"114\"\u003eOperating temperature: -20°C to 70°C\u003c\/li\u003e\n\u003cli data-section-id=\"whalkd\" data-start=\"115\" data-end=\"200\"\u003eFeatures: Display, Battery charger, Microcontroller (MCU), Programmable button(s)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"202\" data-end=\"230\"\u003ePhysical Specifications\u003c\/h4\u003e\n\u003cul data-start=\"231\" data-end=\"318\"\u003e\n\u003cli data-section-id=\"19nf560\" data-start=\"231\" data-end=\"247\"\u003eColor: Black\u003c\/li\u003e\n\u003cli data-section-id=\"tcyinp\" data-start=\"248\" data-end=\"264\"\u003eWeight: 11 g\u003c\/li\u003e\n\u003cli data-section-id=\"19ctqti\" data-start=\"265\" data-end=\"294\"\u003eDimensions: 52 mm × 25 mm\u003c\/li\u003e\n\u003cli data-section-id=\"gqymnn\" data-start=\"295\" data-end=\"318\"\u003eForm factor: Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"320\" data-end=\"350\"\u003eElectrical Specifications\u003c\/h4\u003e\n\u003cul data-start=\"351\" data-end=\"469\"\u003e\n\u003cli data-section-id=\"me667f\" data-start=\"351\" data-end=\"380\"\u003eSupply voltage: 4.7V – 6V\u003c\/li\u003e\n\u003cli data-section-id=\"jrs3xq\" data-start=\"381\" data-end=\"401\"\u003eIO voltage: 3.3V\u003c\/li\u003e\n\u003cli data-section-id=\"nyqepp\" data-start=\"402\" data-end=\"436\"\u003eMax source current (IO): 40 mA\u003c\/li\u003e\n\u003cli data-section-id=\"1su2ak1\" data-start=\"437\" data-end=\"469\"\u003eMax sink current (IO): 28 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"471\" data-end=\"497\"\u003eMicrocontroller (MCU)\u003c\/h4\u003e\n\u003cul data-start=\"498\" data-end=\"582\"\u003e\n\u003cli data-section-id=\"1hogkkb\" data-start=\"498\" data-end=\"525\"\u003eManufacturer: Espressif\u003c\/li\u003e\n\u003cli data-section-id=\"1wvs4cq\" data-start=\"526\" data-end=\"544\"\u003eChip: ESP32-S3\u003c\/li\u003e\n\u003cli data-section-id=\"jv4k50\" data-start=\"545\" data-end=\"569\"\u003eClock speed: 240 MHz\u003c\/li\u003e\n\u003cli data-section-id=\"u7t30o\" data-start=\"570\" data-end=\"582\"\u003eCores: 2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"584\" data-end=\"595\"\u003eMemory\u003c\/h4\u003e\n\u003cul data-start=\"596\" data-end=\"666\"\u003e\n\u003cli data-section-id=\"owqwps\" data-start=\"596\" data-end=\"612\"\u003eSRAM: 512 KB\u003c\/li\u003e\n\u003cli data-section-id=\"1yvfxn6\" data-start=\"613\" data-end=\"628\"\u003ePSRAM: 2 MB\u003c\/li\u003e\n\u003cli data-section-id=\"qq5o7e\" data-start=\"629\" data-end=\"645\"\u003eFlash: 16 MB\u003c\/li\u003e\n\u003cli data-section-id=\"gn9od3\" data-start=\"646\" data-end=\"666\"\u003eEEPROM: Emulated\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"668\" data-end=\"697\"\u003eCommunication Interfaces\u003c\/h4\u003e\n\u003cul data-start=\"698\" data-end=\"955\"\u003e\n\u003cli data-section-id=\"1f6qjuc\" data-start=\"698\" data-end=\"770\"\u003eInterfaces: ADC, I2C, I2S, PWM, SPI, GPIO, UART, USB CDC, Native USB\u003c\/li\u003e\n\u003cli data-section-id=\"1la7q9c\" data-start=\"771\" data-end=\"807\"\u003eGPIO pins: 0–7, 15–21, 26, 33–48\u003c\/li\u003e\n\u003cli data-section-id=\"4ibv1v\" data-start=\"808\" data-end=\"829\"\u003eTotal IO pins: 32\u003c\/li\u003e\n\u003cli data-section-id=\"94cxii\" data-start=\"830\" data-end=\"850\"\u003ePWM channels: 20\u003c\/li\u003e\n\u003cli data-section-id=\"5k4y5i\" data-start=\"851\" data-end=\"871\"\u003eADC channels: 13\u003c\/li\u003e\n\u003cli data-section-id=\"117fzx0\" data-start=\"872\" data-end=\"891\"\u003eDAC channels: 0\u003c\/li\u003e\n\u003cli data-section-id=\"ev2r5f\" data-start=\"892\" data-end=\"903\"\u003eUART: 3\u003c\/li\u003e\n\u003cli data-section-id=\"10iumwo\" data-start=\"904\" data-end=\"914\"\u003eI2C: 2\u003c\/li\u003e\n\u003cli data-section-id=\"de103u\" data-start=\"915\" data-end=\"925\"\u003eSPI: 2\u003c\/li\u003e\n\u003cli data-section-id=\"125v92y\" data-start=\"926\" data-end=\"955\"\u003eUSB-to-serial: Integrated\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"957\" data-end=\"983\"\u003eWireless Connectivity\u003c\/h4\u003e\n\u003cul data-start=\"984\" data-end=\"1109\"\u003e\n\u003cli data-section-id=\"1jbvh1a\" data-start=\"984\" data-end=\"1022\"\u003eInterfaces: LoRa, Wi-Fi, Bluetooth\u003c\/li\u003e\n\u003cli data-section-id=\"15f5s9h\" data-start=\"1023\" data-end=\"1051\"\u003eWi-Fi: ESP32-S3, 2.4 GHz\u003c\/li\u003e\n\u003cli data-section-id=\"vootq5\" data-start=\"1052\" data-end=\"1083\"\u003eBluetooth: Version 5.0 (LE)\u003c\/li\u003e\n\u003cli data-section-id=\"142pedn\" data-start=\"1084\" data-end=\"1109\"\u003eLoRa: SX1262, 868 MHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1111\" data-end=\"1123\"\u003eDisplay\u003c\/h4\u003e\n\u003cul data-start=\"1124\" data-end=\"1242\"\u003e\n\u003cli data-section-id=\"1h256w\" data-start=\"1124\" data-end=\"1138\"\u003eType: OLED\u003c\/li\u003e\n\u003cli data-section-id=\"1iaa3y\" data-start=\"1139\" data-end=\"1158\"\u003eDriver: SSD1315\u003c\/li\u003e\n\u003cli data-section-id=\"aojalm\" data-start=\"1159\" data-end=\"1178\"\u003eSize: 0.96 inch\u003c\/li\u003e\n\u003cli data-section-id=\"rpfnsi\" data-start=\"1179\" data-end=\"1203\"\u003eResolution: 128 × 64\u003c\/li\u003e\n\u003cli data-section-id=\"30bnr3\" data-start=\"1204\" data-end=\"1226\"\u003eShape: Rectangular\u003c\/li\u003e\n\u003cli data-section-id=\"im4nqp\" data-start=\"1227\" data-end=\"1242\"\u003eColor: Blue\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1244\" data-end=\"1267\"\u003eBattery \u0026amp; Charging\u003c\/h4\u003e\n\u003cul data-start=\"1268\" data-end=\"1440\"\u003e\n\u003cli data-section-id=\"miwhjw\" data-start=\"1268\" data-end=\"1290\"\u003eCharger IC: CN3165\u003c\/li\u003e\n\u003cli data-section-id=\"yiqk\" data-start=\"1291\" data-end=\"1322\"\u003eBattery type: Li-Po, Li-ion\u003c\/li\u003e\n\u003cli data-section-id=\"8wt6p1\" data-start=\"1323\" data-end=\"1353\"\u003eMax charging voltage: 4.2V\u003c\/li\u003e\n\u003cli data-section-id=\"1xslw25\" data-start=\"1354\" data-end=\"1386\"\u003eMax charging current: 540 mA\u003c\/li\u003e\n\u003cli data-section-id=\"1vqf5pp\" data-start=\"1387\" data-end=\"1413\"\u003eAdjustable current: No\u003c\/li\u003e\n\u003cli data-section-id=\"1r75lib\" data-start=\"1414\" data-end=\"1440\"\u003eProtection circuit: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1442\" data-end=\"1457\"\u003eConnectors\u003c\/h4\u003e\n\u003cul data-start=\"1458\" data-end=\"1729\"\u003e\n\u003cli data-section-id=\"1b41h3p\" data-start=\"1458\" data-end=\"1497\"\u003ePower: USB-C (female), 2.54 mm pins\u003c\/li\u003e\n\u003cli data-section-id=\"13wcjxn\" data-start=\"1498\" data-end=\"1549\"\u003eIO: USB-C, Molex Picoblade (male), 2.54 mm pins\u003c\/li\u003e\n\u003cli data-section-id=\"xer7kj\" data-start=\"1550\" data-end=\"1585\"\u003eBattery: Molex Picoblade (male)\u003c\/li\u003e\n\u003cli data-section-id=\"vj0c3h\" data-start=\"1586\" data-end=\"1619\"\u003eSolar: Molex Picoblade (male)\u003c\/li\u003e\n\u003cli data-section-id=\"a0ypv3\" data-start=\"1620\" data-end=\"1695\"\u003eWi-Fi\/Bluetooth antenna: Built-in, optional uFL (modification required)\u003c\/li\u003e\n\u003cli data-section-id=\"1sppexh\" data-start=\"1696\" data-end=\"1729\"\u003eLoRa antenna: uFL (IPEX MHF1)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1731\" data-end=\"1752\"\u003ePackage Contents\u003c\/h4\u003e\n\u003cul data-start=\"1753\" data-end=\"1901\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1wysb5n\" data-start=\"1753\" data-end=\"1782\"\u003e1× Wi-Fi LoRa 32 V4 board\u003c\/li\u003e\n\u003cli data-section-id=\"mxz4if\" data-start=\"1783\" data-end=\"1809\"\u003e2× 18-pin male headers\u003c\/li\u003e\n\u003cli data-section-id=\"19j85zg\" data-start=\"1810\" data-end=\"1835\"\u003e2× 2-pin male headers\u003c\/li\u003e\n\u003cli data-section-id=\"1jodtl1\" data-start=\"1836\" data-end=\"1860\"\u003e1× IPEX LoRa antenna\u003c\/li\u003e\n\u003cli data-section-id=\"1dhqic9\" data-start=\"1861\" data-end=\"1901\" data-is-last-node=\"\"\u003e2× Molex Picoblade compatible cables\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Voltaat","offers":[{"title":"Default Title","offer_id":51582510727485,"sku":"VT-4602","price":159.0,"currency_code":"QAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2822\/2674\/files\/voltaat-deveb-esp-heltec-esp32-lora-32-v4-development-board-with-oled-display-1232264636.jpg?v=1776099669","url":"https:\/\/www.voltaat.com\/products\/heltec-esp32-lora-32-v4-development-board-with-oled-display","provider":"Voltaat","version":"1.0","type":"link"}