Sketch for ESP-32 used to physically toggle PC power switch when signaled over the MQTT protocol

Missing header file (src/cred.h) must be written like so:

#define WIFI_SSID "ssid"
#define WIFI_PASSWORD "pass"
#define MQTT_SERVER "broker.com"
#define MQTT_PORT 1234
#define MQTT_USER "user"
#define MQTT_PASSWORD "pass"
#define MQTT_SUB_TOPIC "/toggle-power"
#define MQTT_MESSAGE "true"

• Add additional board manager URL in preferences:https://dl.espressif.com/dl/package_esp32_index.json

• Search and install ESP32 by Espressif Systems

• PubSubClient. This library can be installed from Library manager

• pyserial. Install pyserial using pip like pip install pyserial