Pin header no welding in default!if need welded pls contact us before order.
ESP Kit HTIT series manual (example code include) download link : https://pan.baidu.com/s/1kVuZHdl
WIFI Kit 8 is a cost-effective Internet of things development program developed by our company, the main chip using ESP8266, with CP2014USB to serial chip, lithium battery interface and charge and discharge circuit, 32MByte Flash, WIFI antenna, 0.91-inch OLED display.
Can be programmed in Arduino and NodeMCU environments. Operation is consistent with NodeMCU.
Leads all pins of ESP8266
12 digital pins can be configured to read, write, IIC, SPI, the middle, PWM and other functions
1 AD input
Integrated 0.91-inch 128 * 32 OLED
Working voltage: 3.3V ~ 7V
This package default not include the Lithium battery