@rtyler I’d have to look at the BOM, but I think all of my #DFRobot #Firebeetle ESP32s with basic temp/humidity sensors have been under than price — even given the relatively high price for #DFRobotGravity cabling — minus a fancy case and power source. I’ve repurposed leftover plastic containers with lids from the grocery store as cases, and just about any USB-A power adapter works. I run them with #ESPHome.