{"product_id":"esp32-development-board-cp2102-ch340c-wifi-bluetooth-nodemcu-32s-arduino","title":"ESP32 Development Board — CP2102 \/ CH340C, WiFi + Bluetooth, NodeMCU-32S, Arduino IDE","description":"\u003ch2\u003eESP32 Development Board — CP2102 \/ CH340C, WiFi + Bluetooth, NodeMCU-32S, Arduino IDE\u003c\/h2\u003e\u003cp\u003eThis ESP32 development board integrates the Espressif ESP32-WROOM-32 module (dual-core 240MHz Xtensa LX6, 4MB flash, 520KB SRAM) with a USB-to-UART chip (CP2102 or CH340C), 3.3V LDO regulator, and all GPIO pins broken out to 2.54mm headers. With built-in 802.11 b\/g\/n WiFi and Bluetooth 4.2 \/ BLE 5.0, it is the most capable and popular development board for IoT, smart home, industrial automation, and wireless sensor projects, fully programmable via Arduino IDE, MicroPython, or ESP-IDF.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoC\u003c\/td\u003e\n\u003ctd\u003eESP32-D0WDQ6 (dual-core Xtensa LX6, 240MHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule\u003c\/td\u003e\n\u003ctd\u003eESP32-WROOM-32 (4MB flash, PCB antenna)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiFi\u003c\/td\u003e\n\u003ctd\u003e802.11 b\/g\/n, 2.4GHz, up to 150Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth\u003c\/td\u003e\n\u003ctd\u003eBT 4.2 Classic + BLE 5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSRAM\u003c\/td\u003e\n\u003ctd\u003e520KB internal + 4MB PSRAM (some variants)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPIO Pins\u003c\/td\u003e\n\u003ctd\u003e30–38 (variant dependent, 3.3V logic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eADC\u003c\/td\u003e\n\u003ctd\u003e18× 12-bit SAR ADC (2 channels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDAC\u003c\/td\u003e\n\u003ctd\u003e2× 8-bit DAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB Chip\u003c\/td\u003e\n\u003ctd\u003eCP2102 or CH340C (variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e5V (USB) or 3.3V (3V3 pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eCP2102 vs CH340C USB Chip Comparison\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eCP2102 (Silicon Labs)\u003c\/th\u003e\n\u003cth\u003eCH340C (WCH)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriver stability\u003c\/td\u003e\n\u003ctd\u003eExcellent (official Silicon Labs)\u003c\/td\u003e\n\u003ctd\u003eGood (WCH driver)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax baud rate\u003c\/td\u003e\n\u003ctd\u003e1Mbps\u003c\/td\u003e\n\u003ctd\u003e2Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003emacOS compatibility\u003c\/td\u003e\n\u003ctd\u003eNative (no driver needed macOS 10.15+)\u003c\/td\u003e\n\u003ctd\u003eRequires WCH driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinux compatibility\u003c\/td\u003e\n\u003ctd\u003eNative kernel driver\u003c\/td\u003e\n\u003ctd\u003eNative kernel driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003emacOS users, professional use\u003c\/td\u003e\n\u003ctd\u003eWindows users, cost-sensitive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eESP32 vs ESP8266 — When to Upgrade?\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eESP32\u003c\/th\u003e\n\u003cth\u003eESP8266\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPU cores\u003c\/td\u003e\n\u003ctd\u003eDual-core 240MHz\u003c\/td\u003e\n\u003ctd\u003eSingle-core 80\/160MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth\u003c\/td\u003e\n\u003ctd\u003eYes (BT 4.2 + BLE 5.0)\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eADC channels\u003c\/td\u003e\n\u003ctd\u003e18× 12-bit\u003c\/td\u003e\n\u003ctd\u003e1× 10-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDAC\u003c\/td\u003e\n\u003ctd\u003e2× 8-bit\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTouch sensors\u003c\/td\u003e\n\u003ctd\u003e10 capacitive touch pins\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eBLE, multi-task IoT, audio, camera\u003c\/td\u003e\n\u003ctd\u003eSimple WiFi IoT, low cost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose ESP32 Development Board?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-core 240MHz\u003c\/strong\u003e — run WiFi\/BT on core 0 and application on core 1 simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi + BT\/BLE\u003c\/strong\u003e — single chip covers WiFi, Bluetooth Classic, and BLE 5.0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18× 12-bit ADC\u003c\/strong\u003e — high-resolution analog sensing for sensors, audio, and measurement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino IDE compatible\u003c\/strong\u003e — program with familiar Arduino syntax using ESP32 board package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-40°C to +85°C\u003c\/strong\u003e — industrial temperature range for outdoor and harsh environment deployment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino IDE\u003c\/strong\u003e: ESP32 board package (Board Manager URL: https:\/\/raw.githubusercontent.com\/espressif\/arduino-esp32\/gh-pages\/package_esp32_index.json)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicroPython\u003c\/strong\u003e: Official ESP32 MicroPython firmware (esptool.py flash)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP-IDF\u003c\/strong\u003e: Espressif official SDK for production firmware development\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome Assistant \/ ESPHome\u003c\/strong\u003e: Direct smart home integration with ESPHome firmware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatformIO\u003c\/strong\u003e: Professional IDE with ESP32 support and library management\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I install the ESP32 board package in Arduino IDE?\u003c\/strong\u003e\u003cbr\u003eA: In Arduino IDE: File → Preferences → Additional Board Manager URLs, add: \u003ccode\u003ehttps:\/\/raw.githubusercontent.com\/espressif\/arduino-esp32\/gh-pages\/package_esp32_index.json\u003c\/code\u003e. Then Tools → Board → Board Manager, search “ESP32”, install “ESP32 by Espressif Systems”. Select “ESP32 Dev Module” as board. Upload speed: 115200 baud.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Why does ESP32 ADC give inaccurate readings near 3.3V?\u003c\/strong\u003e\u003cbr\u003eA: ESP32 ADC has a known non-linearity issue near the top of its range (above ~3.0V). For accurate readings, use the ADC calibration API in ESP-IDF, or limit input voltage to 0–2.5V using a voltage divider. The ADC2 channels (GPIO 0, 2, 4, 12–15, 25–27) cannot be used when WiFi is active — use ADC1 channels (GPIO 32–39) for WiFi-concurrent ADC readings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can ESP32 run Arduino and FreeRTOS tasks simultaneously?\u003c\/strong\u003e\u003cbr\u003eA: Yes — the Arduino ESP32 framework runs on top of FreeRTOS. You can create additional FreeRTOS tasks with \u003ccode\u003exTaskCreatePinnedToCore()\u003c\/code\u003e to run code on the second core (core 0) while the Arduino loop() runs on core 1. This enables true parallel execution of WiFi\/BT communication and sensor reading.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1× ESP32 Development Board (CP2102 or CH340C — variant as selected)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"38pin cp2102 micro","offer_id":46991467282667,"sku":"14:173#38pin cp2102 micro","price":20.16,"currency_code":"USD","in_stock":true},{"title":"38pin cp2102 type-c","offer_id":46991467315435,"sku":"14:175#38pin cp2102 type-c","price":20.96,"currency_code":"USD","in_stock":true},{"title":"30pin Green","offer_id":46991467348203,"sku":"14:29#30pin Green","price":9.12,"currency_code":"USD","in_stock":true},{"title":"38pin ch9102 micro","offer_id":46991467380971,"sku":"14:94#38pin ch9102 micro","price":16.8,"currency_code":"USD","in_stock":true},{"title":"30pin ch340 type-c","offer_id":46991467413739,"sku":"14:351074#30pin ch340 type-c","price":16.0,"currency_code":"USD","in_stock":true},{"title":"30pin micro unwelded","offer_id":46991467446507,"sku":"14:1202#30pin micro unwelded","price":19.56,"currency_code":"USD","in_stock":true},{"title":"30pin Black","offer_id":46991467479275,"sku":"14:350852#30pin Black","price":6.92,"currency_code":"USD","in_stock":true},{"title":"30pin cp2102 type-c","offer_id":46991467512043,"sku":"14:10#30pin cp2102 type-c","price":20.36,"currency_code":"USD","in_stock":true},{"title":"30pin cp2102 micro","offer_id":46991467544811,"sku":"14:201659813#30pin cp2102 micro","price":20.16,"currency_code":"USD","in_stock":true},{"title":"30pin ch9102 micro","offer_id":46991467577579,"sku":"14:4044226#30pin ch9102 micro","price":16.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/esp32-development-board-wifi-bluetooth-cp2102-ch340c-node32s.webp?v=1761719000","url":"https:\/\/keszoox.com\/products\/esp32-development-board-cp2102-ch340c-wifi-bluetooth-nodemcu-32s-arduino","provider":"Keszoox","version":"1.0","type":"link"}