How to Configure SmartTemp WiFi Sensors in 5 Minutes

What Do You Need?

Configuration Process

1. Power On the Sensor
   Connect your SmartTemp sensor to power. You'll see the built-in LED begin to blink intermittently, indicating that it is in configuration mode (AP Mode).
2. Connect to the Captive Portal
   Open your smartphone's WiFi settings and look for a network called SmartTemp_XXXXXX. Connect to this network (no password required).
3. Configure the WiFi Network
   The portal will open automatically. Select your home WiFi network, enter the password and assign a descriptive name to the sensor.
4. Verify the Connection
   The sensor will restart automatically. The LED will change to a steady light indicating a successful connection and it will appear on your SmartTemp dashboard.

Troubleshooting

❌ I don't see the SmartTemp_XXXXXX network

Solution: Disconnect and reconnect the sensor's power. Wait 30 seconds for it to enter configuration mode.

❌ The portal doesn't open

Solution: Turn off mobile data and go manually to 192.168.4.1 in your browser.

❌ WiFi password error

Solution: Verify that your network is 2.4GHz and that the password is correct. Avoid special characters.

Advanced Configuration

For advanced users, the portal also allows you to:

• Configure a static IP: Useful for business networks
• Adjust the sending interval: From 1 second to 10 minutes
• Configure a custom server: For on-premise installations
• Enable debug mode: For technical diagnostics

// Advanced configuration in config_sensor.h
#define WIFI_SSID "YourWiFiNetwork"
#define WIFI_PASSWORD "YourPassword"
#define SERVER_URL "https://your-server.com"
#define SEND_INTERVAL 30000  // 30 seconds