{"product_id":"esp32-s3-zero-dev-board","title":"ESP32-S3 Zero Dev Board - Dual-Core, 2MB PSRAM, WiFi + BLE 5, RGB LED","description":"\u003cstyle\u003e.nznpd{--o:#F57C00;--od:#E65100;--ink:#0F172A;--mut:#5b6573;--line:#E8ECF0;--soft:#F7F8FA;max-width:1120px;margin:0 auto;color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;line-height:1.6}.nznpd,.nznpd *{box-sizing:border-box}.nznpd p{margin:0;color:var(--mut);font-size:15px;line-height:1.65}.nznpd strong{color:var(--ink)}.nznpd__intro{font-size:16px;color:var(--ink);font-weight:500;line-height:1.6}.nznpd__highlights{list-style:none;padding:0;margin:24px 0 0;display:grid;grid-template-columns:repeat(2,1fr);column-gap:36px}.nznpd__highlights li{display:flex;gap:11px;align-items:flex-start;font-size:14px;color:var(--ink);line-height:1.5;padding:12px 0;border-bottom:1px solid var(--line)}.nznpd__highlights li::before{content:'▸';flex:0 0 auto;color:var(--o);font-size:12px;line-height:1.75}.nznpd__highlights li:nth-last-child(-n+2){border-bottom:none}.nznpd__block{margin-top:36px;padding-top:30px;border-top:1px solid var(--line)}.nznpd__h{margin:0 0 24px;padding-bottom:10px;font-size:1.15rem;font-weight:800;letter-spacing:-.02em;color:var(--ink);display:flex;align-items:center;gap:10px}.nznpd__h::before{content:'';flex:0 0 auto;width:20px;height:3px;border-radius:2px;background:var(--o)}.nznpd__specs{border:2px solid var(--line);border-radius:12px;overflow:hidden}.nznpd__spec{display:grid;grid-template-columns:minmax(150px,.7fr) 1fr;gap:18px;padding:12px 16px;font-size:14px}.nznpd__spec:nth-child(odd){background:var(--soft)}.nznpd__spec span{color:var(--mut)}.nznpd__spec strong{font-weight:700}.nznpd__dsbar{display:flex;align-items:center;gap:11px;padding:14px 16px;border-top:2px solid var(--line);background:#FFF8F1;text-decoration:none;color:var(--od);font-weight:700;font-size:14px;line-height:1.3;transition:background .16s ease}.nznpd__dsbar:hover{background:#FCEBD8}.nznpd__dsbar svg{flex:0 0 auto;color:var(--o)}.nznpd__dsmeta{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--mut);text-transform:uppercase;letter-spacing:.03em;white-space:nowrap}.nznpd__included{display:flex;gap:16px;align-items:center;border:2px solid var(--line);border-radius:16px;background:var(--soft);padding:18px 20px}.nznpd__qty{flex:0 0 auto;width:46px;height:46px;border-radius:12px;background:#FFF3E8;color:var(--o);font-weight:800;display:flex;align-items:center;justify-content:center}.nznpd__included strong{display:block;font-size:15px;margin-bottom:3px}.nznpd__uses{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.nznpd__use{padding:13px 14px;background:var(--soft);border-left:3px solid var(--o);border-radius:0 10px 10px 0;font-size:14px;color:var(--ink);line-height:1.4}.nznpd p.nznpd__note{margin-top:16px;background:var(--soft);border:2px solid var(--line);border-radius:12px;padding:14px 16px;font-size:13.5px;color:var(--mut);line-height:1.55}.nznpd__code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;background:#fff;border:1px solid #FCE0C6;border-radius:6px;padding:1px 6px;color:var(--od)}@media (prefers-reduced-motion:reduce){.nznpd__dsbar{transition:none}}@media (max-width:749px){.nznpd{padding-left:14px;padding-right:14px}.nznpd__highlights{grid-template-columns:1fr}.nznpd__highlights li:nth-last-child(2){border-bottom:1px solid var(--line)}.nznpd__uses{grid-template-columns:1fr}.nznpd__spec{grid-template-columns:1fr;gap:2px}.nznpd__h{margin-bottom:16px}}\u003c\/style\u003e\u003cdiv class=\"nznpd\"\u003e\n\u003cdiv class=\"nznpd__lead\"\u003e\n\u003cp class=\"nznpd__intro\"\u003eThe ESP32-S3 Zero fits a full dual-core ESP32-S3 into 23.5 x 18 mm. Two Xtensa LX7 cores at up to 240MHz with vector instructions for on-device ML, 4MB of flash alongside 2MB of PSRAM, 2.4GHz WiFi and Bluetooth 5 (LE), and a USB-C port the chip drives natively so there is no driver to chase. The edges are castellated with plated through-holes, so you can fit the supplied headers and breadboard it today, then reflow the same board straight onto your own carrier later.\u003c\/p\u003e\n\u003cul class=\"nznpd__highlights\"\u003e\n\u003cli\u003eESP32-S3 dual-core Xtensa LX7, up to 240MHz\u003c\/li\u003e\n\u003cli\u003e4MB flash plus 2MB PSRAM, 512KB SRAM\u003c\/li\u003e\n\u003cli\u003e2.4GHz WiFi (802.11 b\/g\/n) and Bluetooth 5 (LE)\u003c\/li\u003e\n\u003cli\u003eVector (SIMD) instructions for TinyML and edge AI\u003c\/li\u003e\n\u003cli\u003eNative USB OTG over USB-C, no driver to install\u003c\/li\u003e\n\u003cli\u003e26 GPIO broken out, 8 of them on the underside\u003c\/li\u003e\n\u003cli\u003eCastellated edges plus through-holes for reflow or headers\u003c\/li\u003e\n\u003cli\u003eAddressable WS2812 RGB LED on GPIO21\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003csection class=\"nznpd__block\"\u003e\u003ch3 class=\"nznpd__h\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__specs\"\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eChip\u003c\/span\u003e\u003cstrong\u003eEspressif ESP32-S3FH4R2\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eCPU\u003c\/span\u003e\u003cstrong\u003eDual-core Xtensa LX7, up to 240MHz\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eFlash\u003c\/span\u003e\u003cstrong\u003e4MB, in package\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003ePSRAM\u003c\/span\u003e\u003cstrong\u003e2MB, in package\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSRAM\u003c\/span\u003e\u003cstrong\u003e512KB, plus 384KB ROM\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eWiFi\u003c\/span\u003e\u003cstrong\u003e2.4GHz 802.11 b\/g\/n\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eBluetooth\u003c\/span\u003e\u003cstrong\u003eBluetooth 5 (LE)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eUSB\u003c\/span\u003e\u003cstrong\u003eUSB-C, native USB Serial\/JTAG and OTG\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eGPIO\u003c\/span\u003e\u003cstrong\u003e26 broken out, all PWM capable\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eOnboard LED\u003c\/span\u003e\u003cstrong\u003eWS2812 addressable RGB on GPIO21\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eButtons\u003c\/span\u003e\u003cstrong\u003eBOOT and RESET\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eAntenna\u003c\/span\u003e\u003cstrong\u003eOnboard ceramic antenna\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eLogic voltage\u003c\/span\u003e\u003cstrong\u003e3.3V, not 5V tolerant\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eDimensions\u003c\/span\u003e\u003cstrong\u003e23.5 x 18mm, 2.54mm pin pitch\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eMounting\u003c\/span\u003e\u003cstrong\u003eCastellated edges + plated through-holes\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003ca class=\"nznpd__dsbar\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/ESP32-S3-ZERO-Datasheet-v3.pdf?v=1785550930\" target=\"_blank\" rel=\"noopener\" aria-label=\"Download the full ESP32-S3 Zero technical datasheet (PDF)\"\u003e\n\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\n\u003cspan\u003eFull technical datasheet, pin map and boot notes\u003c\/span\u003e\n\u003cspan class=\"nznpd__dsmeta\"\u003ePDF\u003csvg width=\"17\" height=\"17\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4\"\u003e\u003c\/path\u003e\u003cpolyline points=\"7 10 12 15 17 10\"\u003e\u003c\/polyline\u003e\u003cline x1=\"12\" y1=\"15\" x2=\"12\" y2=\"3\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/span\u003e\n\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"nznpd__block\"\u003e\u003ch3 class=\"nznpd__h\"\u003eWhat's in the box\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__included\"\u003e\n\u003cdiv class=\"nznpd__qty\"\u003e1×\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eESP32-S3 Zero board\u003c\/strong\u003e\u003cp\u003eTested and powered up before it leaves us.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__included\" style=\"margin-top:10px\"\u003e\n\u003cdiv class=\"nznpd__qty\"\u003e2×\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e2.54mm male header strips\u003c\/strong\u003e\u003cp\u003eSupplied loose, not fitted. Solder them straight, right-angle or low-profile to suit your build, or leave them off and reflow the board by its castellated edges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"nznpd__block\"\u003e\u003ch3 class=\"nznpd__h\"\u003eGreat for\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__uses\"\u003e\n\u003cdiv class=\"nznpd__use\"\u003eEdge AI and TinyML on a tiny footprint\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eUSB HID devices (keyboard and mouse emulation)\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eReflowing onto your own PCB as a module\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eESPHome and Home Assistant nodes\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eWiFi web servers, MQTT and REST devices\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eAddressable-LED and wearable projects\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cp class=\"nznpd__note\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e Logic is 3.3V and the GPIO are not 5V tolerant, so level shift anything running at 5V. Program it through the free Arduino IDE (install the Espressif \u003cspan class=\"nznpd__code\"\u003eesp32\u003c\/span\u003e board package, select \u003cspan class=\"nznpd__code\"\u003eESP32S3 Dev Module\u003c\/span\u003e, set USB CDC On Boot to Enabled and PSRAM to QSPI PSRAM), or use PlatformIO, MicroPython, CircuitPython or ESPHome. Plug in with a USB-C \u003cstrong\u003edata\u003c\/strong\u003e cable; if no port appears, hold \u003cspan class=\"nznpd__code\"\u003eBOOT\u003c\/span\u003e, tap RESET, then release BOOT.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"NZN Electronics","offers":[{"title":"Default Title","offer_id":42985533702240,"sku":"ESP32-S3-ZERO-1PK","price":9.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/ESP32-S3-Zero-Hero.jpg?v=1785550252","url":"https:\/\/www.nznelectronics.co.nz\/products\/esp32-s3-zero-dev-board","provider":"NZN Electronics","version":"1.0","type":"link"}