ESP8266 4 channel output control with wifi and physical switch work without internet.
const char* ssid = "SmartHome";
const char* password = "password";
IPAddress apIP(192, 168, 4, 1);
int led1Pin = 5;
int led2Pin = 4;
int led3Pin = 0;
int led4Pin = 2;
int led5Pin = 16;
int button1Pin = 14;
int button2Pin = 12;
int button3Pin = 13;
int button4Pin = 15;
int button1Pin = 14;
int button2Pin = 12;
int button3Pin = 13;
int button4Pin = 15;
int led1Pin = 5;
int led2Pin = 4;
int led3Pin = 0;
int led4Pin = 2;
+-----+-----+---------+------+---+---Pi 3B+-+---+------+---------+-----+-----+
| BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM |
+-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
| | | 3.3v | | | 1 || 2 | | | 5v | | |
| 0 | 8 | D0 | OUT | 0 | 3 || 4 | | | 5V | | |
| 1 | 9 | D1 | OUT | 0 | 5 || 6 | | | 0v | | |
| 2 | 10 | D2 | OUT | 0 | 7 || 8 | | ALT5 | TxD | 15 | 14 |
| | | 0v | | | 9 || 10 | | ALT5 | RxD | 16 | 15 |
| 3 | 0 | D3 | OUT | 0 | 11 || 12 | 0 | OUT | D6 | 1 | 18 |
| 4 | 1 | D4 | OUT | 0 | 13 || 14 | | | 0v | | |
| | | 3.3v | | | 15 || 16 | 0 | OUT | D5 | 4 | 23 |
| 17 | 28 | D17 | OUT | 0 | 19 || 20 | | | 0v | | |
| 27 | 30 | D27 | OUT | 0 | 21 || 22 | | | D25 | 5 | 24 |
| 22 | 31 | D22 | OUT | 0 | 23 || 24 | 0 | OUT | D23 | 6 | 25 |
| | | 0v | | | 25 || 26 | 0 | OUT | D24 | 7 | 28 |
| 10 | 12 | D10 | OUT | 0 | 29 || 30 | | | 0v | | |
| 9 | 13 | D9 | OUT | 0 | 31 || 32 | 0 | OUT | D11 | 8 | 30 |
| 11 | 14 | D11 | OUT | 0 | 33 || 34 | | | 0v | | |
| 12 | 15 | D12 | OUT | 0 | 35 || 36
----------SMART HOME----------
--------Create By SAKIB--------
Enter SSID: SmartHome
Enter Password: password
Enter Url: http://192.168.4.1/
-------------------------------
Open Source
Create By SAKIB.