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Amazon.com: ESP8266 NodeMCU ESP-01 ESP-01S WiFi Development Board DS18B20 Temperature Humidity Sensor WiFi Wireless Node Module(Wireless Node Module) : Electronics
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Optimizing ESP8266/ESPHOME for battery power (and making an ice bath thermometer as well) – Necromancer's notes
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Elecrow Esp8266 Esp-01 Esp-01s Dht11 Temperature Humidity Sensor Module Dht11 Esp8266 Wifi Nodemcu Smart Home Iot Diy Kit - Sensors - AliExpress
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