Adafruit PCF8523 Real Time Clock Assembled Breakout Board : ID 3295 : $6.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Remote wireless data-monitoring system using Arduino
Testing Cr2032 Coin Cell Batteries with μA to mA pulsed duty cycles | Underwater Arduino Data Loggers
MLX90632 Infrared IR Temperature Sensor 4-20ma Module | LoRaWAN IR Thermometer Sensor – RAKwireless Store
Wireless Temperature Sensor – JemRF
Coin cell-powered OpenThread sensor board can send data every 20 seconds for three years - CNX Software
Battery-Powered ESP8266 Sensor? Never Been Simpler | Hackaday
Temp. And Humidity Sensor With A CR2032 For Over 1 Year! - Hackster.io
ESP8266 DHT11/DHT22 Web Server Arduino IDE | Random Nerd Tutorials
Simple BLE Temp Sensor for Beginners, 5 Yrs on Coin Cell : 8 Steps - Instructables
How to make Battery Internal Resistance Meter with Arduino and Atmel ATtiny85 IC
2-Part ProMini Logger that runs >1 year on a Coin Cell | Underwater Arduino Data Loggers
coin-cell (CR2032) powered temperature sensor | MySensors Forum
Battery-powered IoT Moisture Sensor With Wi-Fi | ESP8266 | Maker Pro
Simple BLE Temp Sensor for Beginners, 5 Yrs on Coin Cell : 8 Steps - Instructables
ESP8266 DS18B20 Sensor Web Server Arduino IDE (Single, Multiple) | Random Nerd Tutorials
Temperature Sensor Interfacing With Arduino Project – Connection & Code
Power ESP32/ESP8266 with Solar Panels and Battery | Random Nerd Tutorials
Easy IOT - Low Power Wireless Temperature Sensors : 11 Steps - Instructables
