![I recently finished the prototype for a battery powered ESP8266 based temperature and humidity sensor with eInk display. Currently working on a custom PCB. : r/arduino I recently finished the prototype for a battery powered ESP8266 based temperature and humidity sensor with eInk display. Currently working on a custom PCB. : r/arduino](https://preview.redd.it/q0c5386r08p61.jpg?auto=webp&s=01b66cd34813e206ebea76dd37bf3521c667a8bc)
I recently finished the prototype for a battery powered ESP8266 based temperature and humidity sensor with eInk display. Currently working on a custom PCB. : r/arduino
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Esp8266 Esp-01s Ds18b20 Temperature Humidity Sensor Module Esp-01s Esp01 Wifi Nodemcu For Arduino Smart Home Iot Diy Kit - Instrument Parts & Accessories - AliExpress
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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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Elecrow Esp8266 Esp-01 Esp-01s Dht11 Temperature Humidity Sensor Module Dht11 Esp8266 Wifi Nodemcu Smart Home Iot Diy Kit - Sensors - AliExpress
![Amazon.com: ESP8266 NodeMCU ESP-01 ESP-01S WiFi Development Board DS18B20 Temperature Humidity Sensor WiFi Wireless Node Module(Wireless Node Module) : Electronics Amazon.com: ESP8266 NodeMCU ESP-01 ESP-01S WiFi Development Board DS18B20 Temperature Humidity Sensor WiFi Wireless Node Module(Wireless Node Module) : Electronics](https://m.media-amazon.com/images/I/51Z0+m9sXZS.jpg)
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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Esp8266 Esp-32 18650 Battery Shield Wifi Bluetooth Dht11 Cp2104 Temperature Humidity Soil Moisture Sensor Module For Arduino - Integrated Circuits - AliExpress
![Optimizing ESP8266/ESPHOME for battery power (and making an ice bath thermometer as well) – Necromancer's notes Optimizing ESP8266/ESPHOME for battery power (and making an ice bath thermometer as well) – Necromancer's notes](https://ncrmnt.org/wp-content/uploads/2021/12/IMG_20211128_140630-2-edited.jpg)