{"product_id":"esp32-c3-supermini-expansion-board","title":"ESP32-C3 SuperMini Expansion Board - Servo\/Sensor Breakout, 13 GPIO","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:inherit;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;max-width:none} .nznpd__checks{list-style:none;padding:0;margin:22px 0 0;display:grid;grid-template-columns:repeat(2,1fr);column-gap:26px;row-gap:13px} .nznpd__checks li{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:var(--ink);line-height:1.45} .nznpd__checks li::before{content:\"\\2713\";flex:0 0 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.nznpd__faq[open]{border-color:#FCE0C6} .nznpd__faq summary{list-style:none;cursor:pointer;padding:15px 0;font-weight:700;font-size:14px;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:12px} .nznpd__faq summary::-webkit-details-marker{display:none} .nznpd__faq summary::after{content:\"\\203A\";flex:0 0 auto;color:var(--o);font-weight:800;font-size:20px;line-height:1;display:inline-block;transform:rotate(90deg);transition:transform .22s ease} .nznpd__faq[open] summary::after{transform:rotate(-90deg)} .nznpd__faq p{padding:0 0 16px;font-size:14px} .nznpd__faq[open] p{animation:nznpdReveal .24s ease} @keyframes nznpdReveal{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}} .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} @media (prefers-reduced-motion:reduce){.nznpd__faq summary::after{transition:none}.nznpd__faq[open] p{animation:none}.nznpd__dsbar{transition:none}} @media (max-width:749px){.nznpd__checks{grid-template-columns:1fr}.nznpd__uses{grid-template-columns:1fr}.nznpd__spec{grid-template-columns:1fr;gap:2px}}\u003c\/style\u003e\u003cdiv class=\"nznpd\"\u003e\n\u003cdiv class=\"nznpd__lead\"\u003e\n\u003cp class=\"nznpd__intro\"\u003eThis expansion board turns the ESP32-C3 SuperMini into something you can actually wire up. The module drops into two 8-way sockets and every one of its 13 GPIO comes back out as a 3-pin signal \/ VCC \/ GND row, the same layout servos and sensor modules already use. Each flank has its own VCC rail, and a 3 x 3 power block gives you three spare taps of 5V, GND and 3V3. There is also a PH2.0 input for a 3.7V lithium cell, so a project can run off battery. \u003cstrong\u003eBoard only, the ESP32-C3 SuperMini is sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul class=\"nznpd__checks\"\u003e\n\u003cli\u003eAll 13 GPIO broken out as 3-pin signal\/VCC\/GND rows\u003c\/li\u003e\n\u003cli\u003eTwo independent rails, VCC1 and VCC2, one per flank\u003c\/li\u003e\n\u003cli\u003eRails output 3.3V as shipped, 3.7V if you rework them\u003c\/li\u003e\n\u003cli\u003e3 x 3 power block: three taps each of 5V, GND, 3V3\u003c\/li\u003e\n\u003cli\u003ePH2.0 input for a 3.7V lithium cell, plus B+\/B- pads\u003c\/li\u003e\n\u003cli\u003eColour-coded headers, yellow signal, red VCC, black GND\u003c\/li\u003e\n\u003cli\u003eFemale sockets, nothing solders to the carrier\u003c\/li\u003e\n\u003cli\u003eTwo M2 mounting holes, 37.3 x 22.3mm, 7.6g\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\u003eCompatible with\u003c\/span\u003e\u003cstrong\u003eESP32-C3 SuperMini (sold separately)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eBoard marking\u003c\/span\u003e\u003cstrong\u003eHW-150\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eGPIO broken out\u003c\/span\u003e\u003cstrong\u003e13, as 3-pin signal\/VCC\/GND rows\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eRow layout\u003c\/span\u003e\u003cstrong\u003e8 rows one flank, 5 rows the other\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003ePower block\u003c\/span\u003e\u003cstrong\u003e3 x 3 pins: 5V, GND, 3V3\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003ePower rails\u003c\/span\u003e\u003cstrong\u003eVCC1 and VCC2, set independently\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eRail voltage\u003c\/span\u003e\u003cstrong\u003e3.3V default, 3.7V after rework\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eBattery input\u003c\/span\u003e\u003cstrong\u003ePH2.0 2-pin, 3.7V lithium, plus B+\/B- rear pads\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eModule sockets\u003c\/span\u003e\u003cstrong\u003e2 x 8-way female, 2.54mm\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eHeader pitch\u003c\/span\u003e\u003cstrong\u003e2.54mm (0.1\")\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eLogic level\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\u003e37.3 x 22.3mm, 11.6mm tall\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eWeight\u003c\/span\u003e\u003cstrong\u003e7.6g\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eMounting\u003c\/span\u003e\u003cstrong\u003e2 holes, M2 class\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSubstrate\u003c\/span\u003e\u003cstrong\u003eFR4, black solder mask\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-C3-EXPANSION-Datasheet-v3.pdf?v=1785481263\" target=\"_blank\" rel=\"noopener\" aria-label=\"Download the full ESP32-C3 Expansion Board 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 rail rework\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\n\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\"\u003e1x\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eESP32-C3 Expansion Board (HW-150)\u003c\/strong\u003e\u003cp\u003eHeaders already soldered. The ESP32-C3 SuperMini module is not included, and neither are header pins for it or a battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\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\"\u003eMulti-servo and RC robotics wiring\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003e3-wire sensor module harnesses\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eBattery-powered ESP32-C3 nodes\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eHome automation and ESPHome builds\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eClassroom and workshop kits\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003ePermanent installs, replacing a breadboard\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\u003cdiv class=\"nznpd__qs\"\u003e\n\u003ch3\u003eGetting started\u003c\/h3\u003e\n\u003col class=\"nznpd__steps\"\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eFit header pins to your SuperMini\u003c\/strong\u003e\u003cp\u003eThe carrier has female sockets, so the module needs its own male pins soldered on. A pre-soldered SuperMini drops straight in.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eCheck the orientation\u003c\/strong\u003e\u003cp\u003eThe SuperMini's 5V \/ GND \/ 3V3 end goes to the flank with the blue, black and red power block. Seated the other way round, the supply lands on GPIO21.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003ePlug in your peripherals\u003c\/strong\u003e\u003cp\u003eA standard 3-wire servo or sensor lead goes straight onto a row. Rails are 3.3V from the factory, so most 3.3V modules just work.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eOnly rework a rail if you need 3.7V\u003c\/strong\u003e\u003cp\u003eRemove that rail's 0R resistor and bridge the three pads with solder. The datasheet shows exactly which pads, and it is reversible.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\u003ch3 class=\"nznpd__h\"\u003eCommon questions\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__faqs\"\u003e\n\u003cdetails class=\"nznpd__faq\" open\u003e\u003csummary\u003eDoes it include the ESP32-C3 SuperMini?\u003c\/summary\u003e\u003cp\u003eNo, this is the expansion board on its own. The SuperMini module is sold separately, and it needs header pins fitted to seat into the sockets.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\u003csummary\u003eWhat voltage do VCC1 and VCC2 put out?\u003c\/summary\u003e\u003cp\u003e3.3V as the board leaves the factory, which is what most sensors and modules want. A 0R resistor sets that. If you need the rail to sit at the 3.7V supply voltage instead, remove the 0R resistor for that rail and bridge its three solder pads. VCC1 and VCC2 are separate, so you can change one flank and leave the other at 3.3V. One of the product photos circles where the pads are.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\u003csummary\u003eCan I run it from a battery?\u003c\/summary\u003e\u003cp\u003eYes. There is a 2-pin PH2.0 header marked BAT-IN for a 3.7V lithium cell, and B+ \/ B- pads on the underside if you would rather solder the cell on. Watch your polarity, and note the board is not a charger and has no protection circuit, so use a protected cell and charge it with something like a TP4056 module.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\u003csummary\u003eCan I power servos from this board?\u003c\/summary\u003e\u003cp\u003eUse it for the signal wire, but give servos their own supply. Even a micro servo's stall current is more than this board or the SuperMini's regulator can pass. Feed servo power separately and tie the grounds together.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\u003csummary\u003eIs it 5V tolerant?\u003c\/summary\u003e\u003cp\u003eNo. The ESP32-C3 is a 3.3V part, so a 5V signal on any GPIO row can damage it even though the power block carries a 5V tap. Level-shift or divide any 5V signal first.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\u003csummary\u003eIs the 5V tap live on battery power?\u003c\/summary\u003e\u003cp\u003eNo. The 5V pins follow the SuperMini's 5V pin, which is USB VBUS, so they are only live when the module is plugged into USB-C. On battery, treat that row as dead.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\u003csummary\u003eWill it fit a C6, H2 or S3 SuperMini?\u003c\/summary\u003e\u003cp\u003eIt is designed around the ESP32-C3 SuperMini footprint. Other Espressif SuperMini boards use a similar 2 x 8 layout but the pin functions differ, so check pin count and spacing against your board before using it.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\u003csummary\u003eDoes it plug into a breadboard?\u003c\/summary\u003e\u003cp\u003eNo. The pins are male headers on both faces, so it works as a wiring hub rather than a breadboard-insertable module. It is meant to replace the breadboard, not sit on one.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003cp class=\"nznpd__note\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e This is an accessory for the ESP32-C3 SuperMini and does nothing on its own. Both VCC rails ship at 3.3V, so nothing needs changing for normal 3.3V sensors. Every board is checked before it ships from our Te Awamutu stock.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"NZN Electronics","offers":[{"title":"Default Title","offer_id":42985532227680,"sku":"ESP32-C3-ADAPTER-1PK","price":4.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/ESP32-C3-Expansion-Hero.png?v=1785480196","url":"https:\/\/www.nznelectronics.co.nz\/products\/esp32-c3-supermini-expansion-board","provider":"NZN Electronics","version":"1.0","type":"link"}