{"product_id":"esp32-uno-d1-r32-ch340-wifi-bluetooth-development-board","title":"ESP32 UNO D1 R32 (CH340) WiFi \u0026 Bluetooth Development Board","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe \u003cstrong\u003eESP32 UNO D1 R32 (CH340)\u003c\/strong\u003e is the ultimate bridge between the classic Arduino ecosystem and modern IoT capabilities. This development board brilliantly takes the incredibly powerful ESP-WROOM-32 WiFi and Bluetooth module and packages it into the familiar, industry-standard Arduino Uno R3 footprint. If you love the size and layout of the Arduino Uno but desperately need wireless connectivity and more processing power, this is the board for you.\u003c\/p\u003e\n\n\u003cp\u003eEquipped with a reliable \u003cstrong\u003eCH340 USB-to-Serial converter\u003c\/strong\u003e, this board offers seamless plug-and-play communication with your PC. It features a standard DC barrel jack (accepting 5V to 12V) and a micro-USB port for programming and power. Whether you are transitioning older Arduino projects into cloud-connected devices or building brand new smart home hubs from scratch, the D1 R32 provides the processing muscle (a 240MHz dual-core processor) required for heavy-duty applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePeople also search for:\u003c\/strong\u003e wemos d1 r32, esp32 uno form factor, esp32 ch340, arduino wifi upgrade board, iot development board.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrocontroller Module:\u003c\/strong\u003e ESP-WROOM-32 (Xtensa Dual-Core 32-bit LX6 @ 240 MHz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e Arduino Uno R3 footprint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-to-Serial Converter:\u003c\/strong\u003e CH340\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWireless Connectivity:\u003c\/strong\u003e 2.4 GHz Wi-Fi (802.11 b\/g\/n) \u0026amp; Bluetooth 4.2 (Classic \u0026amp; BLE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Logic Voltage:\u003c\/strong\u003e 3.3V \u003cem\u003e(Important: Not 5V tolerant on I\/O pins)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage (DC Jack):\u003c\/strong\u003e 5V to 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage (USB):\u003c\/strong\u003e 5V via Micro-USB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlash Memory:\u003c\/strong\u003e 4MB SPI Flash\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital I\/O Pins:\u003c\/strong\u003e 20 (Note: Pin mapping differs from a standard Uno)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eApplications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIoT Gateways:\u003c\/strong\u003e Acting as a central hub to collect data from local Bluetooth sensors and forward it to a Wi-Fi MQTT server or cloud dashboard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Home Automation:\u003c\/strong\u003e Building custom web-servers to control relays, lights, and appliances directly from your smartphone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWireless Robotics:\u003c\/strong\u003e Upgrading older Uno-based robot chassis with Wi-Fi telemetry, OTA (Over-The-Air) updates, and BLE remote control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Monitoring:\u003c\/strong\u003e Creating advanced weather stations that pull real-time API data and log sensor metrics to the cloud.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eFrequently Asked Questions (FAQ)\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use all my existing 5V Arduino Uno shields with this board?\u003c\/strong\u003e\u003cbr\u003e\nA: Not necessarily. While the physical shape and header locations match the Arduino Uno, the ESP32 operates on \u003cstrong\u003e3.3V logic\u003c\/strong\u003e. Plugging in a shield that sends 5V logic signals directly to the input pins can damage the ESP32 chip. Always ensure your shields or sensors are 3.3V compatible or use a logic level converter.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I program this board?\u003c\/strong\u003e\u003cbr\u003e\nA: You can program it easily using the standard Arduino IDE! You simply need to add the ESP32 board manager URL to your preferences, install the ESP32 package, and select \"ESP32 Dev Module\" or \"WEMOS D1 R32\" from the boards menu.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to install drivers for the CH340 chip?\u003c\/strong\u003e\u003cbr\u003e\nA: If you are using a modern operating system (like Windows 10\/11 or recent versions of macOS\/Linux), the CH340 drivers are often installed automatically. If your computer does not recognize the board when plugged in, you can easily download and install the free CH340 driver online.\u003c\/p\u003e\n\n\u003ch5\u003ePackage Includes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e1 × ESP32 UNO D1 R32 (CH340) WiFi \u0026amp; Bluetooth Board\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMPORTED","offers":[{"title":"Default Title","offer_id":49467015201006,"sku":"DBS-28759","price":460.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2132\/9029\/files\/ESP32_UNO_D1_R3_CH340_1.jpg?v=1787338089","url":"https:\/\/www.tomsonelectronics.com\/products\/esp32-uno-d1-r32-ch340-wifi-bluetooth-development-board","provider":"Tomson Electronics ","version":"1.0","type":"link"}