{"product_id":"esp32-c3-wifi-bluetooth-5-development-board-type-c-external-antenna","title":"ESP32-C3 Wi-Fi \u0026 Bluetooth 5.0 Dev Board | Type-C, Antenna","description":"\n\u003ch2\u003eESP32-C3 Wi-Fi \u0026amp; Bluetooth 5.0 Development Board\u003c\/h2\u003e\n\u003cp\u003eMeet the \u003cstrong\u003eESP32-C3 Development Board by diymore\u003c\/strong\u003e — a compact, powerful, and cost-effective module built for IoT makers, hobbyists, and engineers. Powered by the \u003cstrong\u003eESP32C3FN4 chip\u003c\/strong\u003e with a 32-bit RISC-V single-core processor running up to 160 MHz, this board packs impressive performance into a thumb-sized footprint (just 22.52 × 18 mm). With a Type-C USB port, external antenna connector, and onboard RGB LED, it's ready for your next wireless project right out of the box.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003e✦ Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePowerful CPU:\u003c\/strong\u003e ESP32-C3 32-bit RISC-V single-core processor, up to 160 MHz — supports 32-bit single-precision operations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWi-Fi:\u003c\/strong\u003e IEEE 802.11 b\/g\/n at 2.4 GHz; supports Station, SoftAP, SoftAP+Station, and mixed modes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBluetooth 5.0 (LE):\u003c\/strong\u003e Low-energy Bluetooth for modern wireless connectivity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Antenna Port:\u003c\/strong\u003e Boost signal range and strength beyond the onboard antenna.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Low Power:\u003c\/strong\u003e Deep sleep consumption of just ~43 µA — ideal for battery-powered and wearable devices.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOnboard RGB Module \u0026amp; Blue LED:\u003c\/strong\u003e RGB module for richer visual feedback; blue LED connected to GPIO8.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType-C USB Port:\u003c\/strong\u003e Modern, reversible connector for easy programming and power.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRich Memory:\u003c\/strong\u003e 400 KB SRAM, 384 KB ROM, 4 MB Flash.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardware Security:\u003c\/strong\u003e AES-128\/256, SHA hash, RSA, HMAC, digital signatures, and secure boot with hardware-accelerated encryption.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRich Interfaces:\u003c\/strong\u003e 1× I2C, 1× SPI, 2× UART, 11× GPIO (PWM), 4× ADC.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface-Mount Design:\u003c\/strong\u003e Single-sided, compact form factor perfect for wearables and space-constrained projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReset \u0026amp; Boot Buttons:\u003c\/strong\u003e Dedicated hardware buttons for easy flashing and debugging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📋 Technical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChip Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eESP32C3FN4\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCPU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32-bit RISC-V, single-core, up to 160 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWi-Fi\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e802.11 b\/g\/n, 2.4 GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBluetooth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBluetooth 5.0 (LE)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSRAM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e400 KB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eROM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e384 KB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlash\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDeep Sleep Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~43 µA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGPIO\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11× (PWM capable)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eADC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4×\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUART\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI2C \/ SPI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1× each\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSB\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eType-C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOnboard LED\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlue LED on GPIO8\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExternal Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.3 V – 6 V via 5V \u0026amp; GND pins\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22.52 × 18 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e🔌 How to Enter Download Mode\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eHold down the \u003cstrong\u003eBOOT\u003c\/strong\u003e button.\u003c\/li\u003e\n  \u003cli\u003ePress and then release the \u003cstrong\u003eRESET\u003c\/strong\u003e button.\u003c\/li\u003e\n  \u003cli\u003eRelease the \u003cstrong\u003eBOOT\u003c\/strong\u003e button.\u003c\/li\u003e\n  \u003cli\u003eThe board will now be in download mode — ready to flash firmware.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e When using external power, connect the positive terminal to the \u003cstrong\u003e5V pin\u003c\/strong\u003e and negative to the \u003cstrong\u003eGND pin\u003c\/strong\u003e (supports 3.3–6 V). \u003cem\u003eDo not connect USB and external power simultaneously\u003c\/em\u003e — use one or the other.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 You May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ancient-nutrition-multi-collagen-advanced-muscle-60-capsules\"\u003eAncient Nutrition Multi Collagen Advanced Muscle 60 Capsules\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/bu-29mm-sinking-minnow-jerkbait-fishing-lure-bass-trout-pike\"\u003eB\u0026amp;U 29mm Sinking Minnow Jerkbait Lure – Bass Trout Pike\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What wireless protocols does the ESP32-C3 development board support?\u003c\/h4\u003e\n\u003cp\u003eA: The ESP32-C3 board supports IEEE 802.11 b\/g\/n Wi-Fi at 2.4 GHz (Station, SoftAP, SoftAP+Station, and mixed modes) and Bluetooth 5.0 Low Energy (LE), making it highly versatile for IoT, smart home, and wireless wearable projects.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use the ESP32-C3 board with an external antenna?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The board features a dedicated external antenna port, allowing you to connect an external antenna to extend wireless range and improve signal strength — ideal for projects where range is critical.\u003c\/p\u003e\n\u003ch4\u003eQ: What power options does the ESP32-C3 development board support?\u003c\/h4\u003e\n\u003cp\u003eA: You can power the board via the Type-C USB port or through the 5V and GND pins using an external supply (3.3–6 V). Important: USB and external power must not be connected at the same time — select one power source only.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this board suitable for beginners?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The diymore ESP32-C3 board includes dedicated BOOT and RESET buttons to simplify firmware flashing, a Type-C USB port for easy connection, and an onboard blue LED and RGB module for quick testing — making it a great starting point for anyone exploring IoT or embedded development.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What wireless protocols does the ESP32-C3 development board support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The ESP32-C3 board supports IEEE 802.11 b\/g\/n Wi-Fi at 2.4 GHz (Station, SoftAP, SoftAP+Station, and mixed modes) and Bluetooth 5.0 Low Energy (LE), making it highly versatile for IoT, smart home, and wireless wearable projects.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use the ESP32-C3 board with an external antenna?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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