ESP8266EX has 17 GPIO pins which can be assigned to various functions by programming
the appropriate registers.
Each GPIO can be configured with internal pull-u...

| Manufacturer(s) | Lolin |
| Used chip | ESP8266EX |
| Flash | 1 (MB) |
| Total nr of pins | 16 |
| Programmable pins | 10 |
| Antenna | PCB Antenna |