NodeMCU (ESP8266) + Web server + 4 LED diodes = Easy IOT example
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WiFi SSID: ESP8266-IOT
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Gateway: 192.168.2.1
NodeMCU | LED |
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D5 (GPIO14) | 1st anode |
D6 (GPIO12) | 2nd anode |
D7 (GPIO13) | 3rd anode |
D8 (GPIO15) | 4th anode |
GND | All cathodes |
Advice! You should add 330Ω resistors before every anode.