D1 Mini ESP8266 Development Board More info please click here http img banggood com file products 20160328211703MINI D1 E8 B5 84 E6 96 992 pdfHere is the schematic diagram http img banggood com file products 20160328211732 E5 8E 9F E7 90 86 E5 9B BE pdf Description The D1 mini is a mini wifi board based on ESP 8266EX 11 digital input output pins all pins have interrupt pwm I2C one wire supported except D0 1 analog input 3 3V max input A Micro USB connectionCompatible with https github com esp8266 Compatible with http www nodemcu com index cn htmlDHT11 Shield Feature Model Number DHT11 ShieldInstall Style Plug inPackage included 1 x D1 Mini2 x D1 Mini Pin headers4 x D1 Mini Female pin headers1 x DHT11 Shield2 x DHT11 Shield Pin headers4 x DHT11 Shield Female pin headers