EmonPi
Raspberry Pi Energy Monitoring Shield
Development Thread=
http://openenergymonitor.org/emon/node/3937 http://openenergymonitor.org/emon/node/3937 [G+ Development Photos Album]
Disable Pi Serial Console
Simple script to easily enable & disable the Raspberry Pi's serial console. Disabling the serial console is required if you want to use the Raspberry Pi's serial port (UART) to talk to other devices e.g. ATmega328 microcontroller on emonPi (see <http://elinux.org/RPi_Serial_Connection> for more information).
https://github.com/lurch/rpi-serial-console
$sudo wget https://raw.github.com/lurch/rpi-serial-console/master/rpi-serial-console -O /usr/bin/rpi-serial-console && sudo chmod +x /usr/bin/rpi-serial-console
$ sudo rpi-serial-console disable
$ sudo reboot
$ rpi-serial-console status
You should see the message Serial console on /dev/ttyAMA0 is disabled, the serial port is now free for communication with the ATMega328 on the emonPi
Setting Up Wifi
Using How to Edimax EW-7811
$ sudo nano /etc/network/interfaces
Interfaces file looks like this. Commented out three lines and added the third lines at the bottom. auto lo
iface lo inet loopback
iface eth0 inet dhcp
allow-hotplug wlan0
- iface wlan0 inet manual
- wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
- iface default inet dhcp
iface wlan0 inet dhcp
wpa-ssid <YOUR SSID>
wpa-psk <YOUR PASSPHRASE/KEY>
[CTRL] + [X] to save and exit nano
either reboot the Pi or just reboot the adapter
$ sudo ifdown wlan0; sudo ifup wlan0
Script to check for working wifi connection and restart wifi if needed https://github.com/dweeber/WiFi_Check