The I2C interface should be enabled with raspi-config or from the [Gear Icon] -> Configure -> Raspberry Pi page.
The 1-Wire interface should be enabled with raspi-config or from the [Gear Icon] -> Configure -> Raspberry Pi page.
This documentation provides specific installation procedures for configuring UART with the Raspberry Pi version 1 or 2.
Because the UART is handled differently higher after the Raspberry Pi 2 (due to the addition of bluetooth), there are a different set of instructions. If installing Mycodo on a Raspberry Pi 3 or above, you only need to perform these steps to configure UART:
Run raspi-config
sudo raspi-config
Go to Advanced Options -> Serial and disable. Then edit /boot/config.txt
sudo nano /boot/config.txt
Find the line "enable_uart=0" and change it to "enable_uart=1", then reboot.