D1 Mini Pro Board with 4 MB flash memory and ESP8266 chipset. The board can be programmed with Arduino IDE, has the CP2104 USB chipset and allows easy and fast creation of IoT devices. Technical data - 11 digital input pins - all Pin's have interrupts - PWM/I2C & One-Wire support - 1 Analog input (max. 3.3 V) - 4 MB Flash - onBoard WiFi antenna - u.FL Antenna socket for connecting an external antenna - microUSB connector - CP2104 UART - USB Converter Note: To use the external U.FL antenna socket, a jumper must be set. See Figure 5 By default the onBoard antenna is always used. Scope of delivery 1x D1 Mini Board 1x adapter cable U.FL plug - SMA panel jack, approx. 15 cm 1x WLAN SMA antenna, approx. 2.5 dBi 2x pin header short 2x pin header long 2x female connector strip https://elecena.pl/product/18778822/d1-mini-pro-esp8266-cp2104-set-with-antenna 2021-06-13 https://elecena.pl/product/18778822/d1-mini-pro-esp8266-cp2104-set-with-antenna 2021-10-20