{"product_id":"esp8266-esp-01-serial-wifi-adapter-3-3v-5v-breakout-pcb-arduino-uart","title":"ESP8266 ESP-01 Serial WiFi Adapter Module — 3.3V \/ 5V Breakout PCB for Arduino \u0026 UART","description":"\u003ch2\u003eESP8266 ESP-01 Serial WiFi Adapter Module — 3.3V \/ 5V Breakout PCB\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003eESP-01 adapter breakout board\u003c\/strong\u003e converts the ESP8266 ESP-01's non-standard 2mm pitch connector to a standard 2.54mm (0.1\") pitch header, making it breadboard-compatible and easy to wire to Arduino or any UART-capable microcontroller. It includes a 3.3V LDO regulator so the module can be powered directly from a 5V Arduino supply without a separate regulator.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Module\u003c\/td\u003e\n\u003ctd\u003eESP8266 ESP-01 \/ ESP-01S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e5V (onboard 3.3V LDO regulator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESP-01 Supply\u003c\/td\u003e\n\u003ctd\u003e3.3V (regulated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader Pitch\u003c\/td\u003e\n\u003ctd\u003e2.54mm (0.1\") — breadboard compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUART Pins Exposed\u003c\/td\u003e\n\u003ctd\u003eTX, RX, GND, VCC, EN, RST, GPIO0, GPIO2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming Support\u003c\/td\u003e\n\u003ctd\u003eGPIO0 \/ RST pins accessible for flash mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Use an ESP-01 Adapter?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eBreadboard compatible\u003c\/strong\u003e — 2.54mm pitch fits standard breadboards directly\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eOnboard 3.3V regulator\u003c\/strong\u003e — power from 5V Arduino without external regulator\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAll pins broken out\u003c\/strong\u003e — TX, RX, GPIO0, GPIO2, EN, RST all accessible\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eFlash mode support\u003c\/strong\u003e — GPIO0 accessible for firmware programming\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCompact design\u003c\/strong\u003e — minimal footprint on breadboard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eESP-01 AT command WiFi bridge for Arduino Uno\/Mega\u003c\/li\u003e\n\u003cli\u003eESP-01 breadboard prototyping and development\u003c\/li\u003e\n\u003cli\u003eESP-01 firmware flashing via UART adapter\u003c\/li\u003e\n\u003cli\u003eIoT sensor WiFi connectivity via AT commands\u003c\/li\u003e\n\u003cli\u003eESP-01 GPIO control from 5V microcontroller\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × ESP8266 ESP-01 Serial WiFi Adapter Breakout PCB\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eESP-01 module not included.\u003c\/em\u003e\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"ESP-01","offer_id":46991432581355,"sku":"14:351074#ESP-01","price":5.28,"currency_code":"USD","in_stock":true},{"title":"With ESP-01","offer_id":46991432614123,"sku":"14:1202#With ESP-01","price":6.72,"currency_code":"USD","in_stock":true},{"title":"ESP-01s","offer_id":46991432646891,"sku":"14:4044226#ESP-01s","price":5.28,"currency_code":"USD","in_stock":true},{"title":"ESP-01 Adapter","offer_id":46991432679659,"sku":"14:350852#ESP-01 Adapter","price":3.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/esp8266-esp-01-serial-wifi-adapter-3-3v-5v-arduino.webp?v=1761882304","url":"https:\/\/keszoox.com\/products\/esp8266-esp-01-serial-wifi-adapter-3-3v-5v-breakout-pcb-arduino-uart","provider":"Keszoox","version":"1.0","type":"link"}