{"product_id":"esp8266-esp-01s-ds18b20-wifi-temperature-sensor-module-iot-arduino","title":"ESP8266 ESP-01S + DS18B20 WiFi Temperature Sensor Module — Smart Home IoT, Arduino","description":"\u003ch2\u003eESP8266 ESP-01S + DS18B20 WiFi Temperature Sensor Module — Smart Home IoT\u003c\/h2\u003e\u003cp\u003eThis module combines the ESP8266 ESP-01S WiFi module with a DS18B20 digital temperature sensor on a single compact board, providing a ready-to-use WiFi-connected temperature sensing solution. The DS18B20 communicates over the 1-Wire protocol and delivers ±0.5°C accurate temperature readings from -55°C to +125°C. Program via Arduino IDE, MicroPython, or NodeMCU firmware for instant integration into smart home, HVAC monitoring, and IoT data logging applications.\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\u003eWiFi Module\u003c\/td\u003e\n\u003ctd\u003eESP8266 ESP-01S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Sensor\u003c\/td\u003e\n\u003ctd\u003eDS18B20 (1-Wire digital)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-55°C to +125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.5°C (-10°C to +85°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e9–12 bit (configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiFi Standard\u003c\/td\u003e\n\u003ctd\u003e802.11 b\/g\/n, 2.4GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eUART (for programming), 1-Wire (DS18B20)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Memory\u003c\/td\u003e\n\u003ctd\u003e1MB (ESP-01S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose This ESP-01S + DS18B20 Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-in-one WiFi + sensor\u003c\/strong\u003e — no separate wiring between ESP8266 and DS18B20 needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e±0.5°C accuracy\u003c\/strong\u003e — calibrated digital output, no ADC or analog calibration required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-55°C to +125°C range\u003c\/strong\u003e — suitable for freezer monitoring, HVAC, and outdoor applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino IDE compatible\u003c\/strong\u003e — program with familiar Arduino syntax using ESP8266 board package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact form factor\u003c\/strong\u003e — small enough for enclosure-mounted IoT sensor nodes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With \/ Supported Platforms\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino IDE\u003c\/strong\u003e: ESP8266 board package + DallasTemperature + OneWire libraries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicroPython\u003c\/strong\u003e: onewire and ds18x20 modules (built-in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNodeMCU Lua\u003c\/strong\u003e: ds18b20 module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome Assistant\u003c\/strong\u003e: ESPHome integration for direct smart home dashboard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMQTT\u003c\/strong\u003e: Publish temperature to Mosquitto broker for Node-RED or Home Assistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlynk \/ ThingSpeak\u003c\/strong\u003e: Cloud IoT dashboard integration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I program the ESP-01S with Arduino IDE?\u003c\/strong\u003e\u003cbr\u003eA: Install the ESP8266 board package in Arduino IDE (Board Manager URL: http:\/\/arduino.esp8266.com\/stable\/package_esp8266com_index.json). Select “Generic ESP8266 Module”, connect via a USB-to-UART adapter (CH340 or CP2102) with GPIO0 pulled LOW for flash mode. Upload your sketch, then release GPIO0 for normal boot.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I read the DS18B20 temperature over WiFi without a separate microcontroller?\u003c\/strong\u003e\u003cbr\u003eA: Yes — that is the purpose of this module. The ESP8266 reads the DS18B20 via 1-Wire and sends the data over WiFi to an MQTT broker, HTTP server, or cloud platform. No additional MCU is needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between ESP-01 and ESP-01S?\u003c\/strong\u003e\u003cbr\u003eA: ESP-01S is the improved version with 1MB flash (vs 512KB on original ESP-01), a blue LED on GPIO2 instead of GPIO1, and lower power consumption. ESP-01S is the recommended version for new projects due to more flash space for OTA updates and larger sketches.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1× ESP8266 ESP-01S + DS18B20 WiFi Temperature Sensor Module\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991459614955,"sku":"\u003cnone\u003e","price":6.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/esp8266-esp01-esp01s-ds18b20-temperature-humidity-sensor-smart-home-iot.webp?v=1761795175","url":"https:\/\/keszoox.com\/products\/esp8266-esp-01s-ds18b20-wifi-temperature-sensor-module-iot-arduino","provider":"Keszoox","version":"1.0","type":"link"}