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Air vents to dissipate the heat from your hard working ESP32. Thumb notch to pop off the bottom panel, exposing the pins of your ESP32. Important note:To use the RGB LED, the solder bridge jumper labelled "RGB" must be connected.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.