This DIY E-Paper Weather Tracker Runs for 1.5 Years on a Single Charge

This open-source e-paper weather tracker uses an ESP32 chip and a 1,500mAh battery, lasting roughly 1.5 years per charge.
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[Node-RED] Parsing Technique to Extract Only the Data You Need from Nested External API JSON in One Go (Using the Change Node)

When you call an external WEB API (such as weather information or store data) in Node-RED, have you ever stumbled because the returned JSON data is complexly nested (hierarchical), leaving you ...