{"product_id":"esp32-wifi-bluetooth-ble-relay-module-1-2-8-channel-development-board","title":"ESP32 WiFi Bluetooth BLE Relay Module – 1\/2\/8 Channel Dev Board","description":"\n\u003ch2\u003eESP32 WiFi \u0026amp; Bluetooth BLE Relay Module – 1, 2, or 8 Channel\u003c\/h2\u003e\n\u003cp\u003eTake full control of your smart home, automation projects, or IoT systems with the \u003cstrong\u003eESP32 WiFi Bluetooth BLE Relay Module\u003c\/strong\u003e. Available in 1, 2, or 8-channel configurations, this versatile development board combines the power of WiFi, Classic Bluetooth, and low-energy BLE — all in one compact, easy-to-program module. Whether you're a hobbyist, maker, or professional developer, this is the relay board built for real-world results.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTriple Wireless Connectivity:\u003c\/strong\u003e Integrated ESP32 chip supports WiFi, Classic Bluetooth, and BLE (Bluetooth Low Energy) — giving you maximum flexibility for any wireless project.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1, 2, or 8 Relay Channels:\u003c\/strong\u003e Choose the configuration that fits your application — from single-device switching to controlling up to 8 independent loads simultaneously.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemote Control via WiFi:\u003c\/strong\u003e Connect to your local network and control relay states from anywhere in the world via a smartphone app or custom interface.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow-Power BLE Support:\u003c\/strong\u003e Pair wirelessly with smartphones, tablets, or other BLE devices — ideal for battery-powered or energy-sensitive installations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecure Communications:\u003c\/strong\u003e Built-in authentication and encryption mechanisms protect your data and give you peace of mind in sensitive deployments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArduino IDE Compatible:\u003c\/strong\u003e Program and develop with ease using the Arduino IDE or your preferred ESP32-compatible development environment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Works seamlessly with other ESP32 modules, sensors, expansion boards, and a wide range of IoT platforms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n      \u003cth style=\"padding:8px; border:1px solid #ddd; text-align:left;\"\u003eVariant\u003c\/th\u003e\n      \u003cth style=\"padding:8px; border:1px solid #ddd; text-align:left;\"\u003eOperating Voltage\u003c\/th\u003e\n      \u003cth style=\"padding:8px; border:1px solid #ddd; text-align:left;\"\u003eRelay Outputs\u003c\/th\u003e\n      \u003cth style=\"padding:8px; border:1px solid #ddd; text-align:left;\"\u003eDimensions\u003c\/th\u003e\n      \u003cth style=\"padding:8px; border:1px solid #ddd; text-align:left;\"\u003eWeight\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1-Channel\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC 5–60V\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1-way\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e58×54×17mm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e31g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f9f9f9;\"\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2-Channel\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC 5–60V\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2-way\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e75×48×17mm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e42g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e8-Channel\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC 5–30V\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e8-way\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e148×80×17mm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e147g\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Chip:\u003c\/strong\u003e ESP32 (integrated WiFi, Classic Bluetooth \u0026amp; BLE)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommunication Modes:\u003c\/strong\u003e WiFi, Classic Bluetooth, BLE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDevelopment Environment:\u003c\/strong\u003e Arduino IDE \u0026amp; other ESP32-compatible platforms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e 1× WiFi Bluetooth BLE Relay Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Can You Build With It?\u003c\/h3\u003e\n\u003cp\u003eThis relay module is perfect for smart home automation, remote lighting control, garage door openers, industrial IoT systems, HVAC control, wireless sensor networks, and much more. Its broad voltage range and multi-channel options make it one of the most flexible ESP32 relay boards available for secondary and custom development.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/100w-dual-port-car-charger-starlink-mini-fast-charging\"\u003e100W Dual-Port Car Charger – Fast Charging for Power-Hungry Devices\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/140w-usb-c-fast-charging-adapter-auto-power-off-overcharge-protection\"\u003e140W USB-C Fast Charger with Auto Power-Off Overcharge Protection\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExternal Resources\u003c\/h3\u003e\n\u003cp\u003eFor general guidance on electrical safety and relay-based systems, refer to the U.S. Consumer Product Safety Commission (CPSC) for product safety standards and best practices.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Due to differences in monitor settings and lighting, the actual product color may vary slightly from images. Please allow ±1–2cm measuring deviation due to manual measurement.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/AVR_microcontrollers\" target=\"_blank\" rel=\"noopener\"\u003eAVR microcontrollers\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What communication modes does the ESP32 relay module support?\u003c\/h4\u003e\n\u003cp\u003eA: The ESP32 relay module supports three wireless communication modes: WiFi (for LAN and remote internet control), Classic Bluetooth, and BLE (Bluetooth Low Energy) for low-power connections with smartphones, tablets, and other BLE devices.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I program this relay module with the Arduino IDE?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The ESP32 development board is fully compatible with the Arduino IDE. You can also use other ESP32-supported development environments and programming languages for custom firmware and secondary development.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the 1-channel, 2-channel, and 8-channel versions?\u003c\/h4\u003e\n\u003cp\u003eA: The main differences are the number of independently switchable relay outputs and the physical board size. The 1-channel and 2-channel versions operate on DC 5–60V, while the 8-channel version operates on DC 5–30V. Choose based on how many devices or circuits you need to control simultaneously.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the ESP32 BLE relay module secure for IoT applications?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The module includes built-in secure authentication and encryption mechanisms to protect communication and data, making it suitable for sensitive IoT and home automation deployments.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What communication modes does the ESP32 relay module support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The ESP32 relay module supports three wireless communication modes: WiFi (for LAN and remote internet control), Classic Bluetooth, and BLE (Bluetooth Low Energy) for low-power connections with smartphones, tablets, and other BLE devices.\"}}, {\"@type\": \"Question\", \"name\": \"Can I program this relay module with the Arduino IDE?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The ESP32 development board is fully compatible with the Arduino IDE. 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The module includes built-in secure authentication and encryption mechanisms to protect communication and data, making it suitable for sensitive IoT and home automation deployments.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"dc5 to 60v2s \/ United States","offer_id":47710844092521,"sku":"200007763:201336106;200395265:201450527#dc5 to 60v2s","price":32.58,"currency_code":"USD","in_stock":true},{"title":"dc5 to 60v2s \/ france","offer_id":47710844125289,"sku":"200007763:201336342;200395265:201450527#dc5 to 60v2s","price":30.28,"currency_code":"USD","in_stock":true},{"title":"dc5 to 60v1s \/ france","offer_id":47710844158057,"sku":"200007763:201336342;200395265:23399620951#dc5 to 60v1s","price":29.33,"currency_code":"USD","in_stock":true},{"title":"dc5 to 60v2s \/ spain","offer_id":47710844190825,"sku":"200007763:201336104;200395265:201450527#dc5 to 60v2s","price":28.42,"currency_code":"USD","in_stock":true},{"title":"dc5 to 60v1s \/ spain","offer_id":47710844223593,"sku":"200007763:201336104;200395265:23399620951#dc5 to 60v1s","price":27.44,"currency_code":"USD","in_stock":true},{"title":"dc5 to 60v1s \/ United States","offer_id":47710844256361,"sku":"200007763:201336106;200395265:23399620951#dc5 to 60v1s","price":32.03,"currency_code":"USD","in_stock":true},{"title":"dc5 to 30v8s \/ france","offer_id":47710844289129,"sku":"200007763:201336342;200395265:216274828#dc5 to 30v8s","price":47.13,"currency_code":"USD","in_stock":true},{"title":"dc5 to 30v8s \/ spain","offer_id":47710844321897,"sku":"200007763:201336104;200395265:216274828#dc5 to 30v8s","price":45.58,"currency_code":"USD","in_stock":true},{"title":"dc5 to 30v8s \/ United States","offer_id":47710844354665,"sku":"200007763:201336106;200395265:216274828#dc5 to 30v8s","price":52.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S2e388483cdca43d1b548223687a1768eh.webp?v=1782060873","url":"https:\/\/oasis-select.com\/products\/esp32-wifi-bluetooth-ble-relay-module-1-2-8-channel-development-board","provider":"Oasis Select","version":"1.0","type":"link"}