ESP8266 @ 80MHz with 3.3V logic/power 4MB of FLASH (32 MBit) Built in WiFi 802.11 b/g/n
CP2104 USB-Serial converter onboard with 921600 max baudrate for uploading
The SHT31-D sensor has an excellent ±2% relative humidity and ±0.3°C accuracy for most uses
3.3V regulator with 500mA peak current output
Measures 2.0'' x 0.9'' x 0.28'' (51mm x 23mm x 8mm) without headers soldered in Light as a (large?) feather - 9.7 grams

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2 inch
Height : 1 inch
Length : 3 inch

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ASIN : B074XMF9W7