It sounds like you were succesful at writing the image to the µSD card.
That said, I think you may a bit confused.
Although your Pi now hosts an instance of emonCMS, you access it via a web browser from another
computer. e.g. your laptop machine. Configuration and administration are also done via the browser.
It’s actually quite rare that anyone uses a monitor and/or keyboard connected to the Pi itself.
That’s not to say it never happens, as there are times when it’s very handy or even necessary to have
them connected, but those instances usually involve troubleshooting, i.e not normal day to day operation.
Typically, a browser is “pointed at” ip_address_of_your_Pi/emoncms
As you have a monitor connected to your Pi, finding its IP address will be easy. If you don’t already have
a keyboard connected, connect a keyboard, log in, then type the command /sbin/ifconfig
That will give you some text that should look something like this:
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.105 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::4f80:c585:ef84:246f prefixlen 64 scopeid 0x20<link>
ether b8:27:eb:5f:ba:84 txqueuelen 1000 (Ethernet)
RX packets 19793498 bytes 2072271914 (1.9 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 14819490 bytes 2312777407 (2.1 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
In this example, the IP address is in the second line: 192.168.1.105
So, the text to enter in a browser URL box is: 192.168.1.105/emoncms
You’ll use the IP address the ifconfig command gives you.
When you log in for the the first time, you’ll see choices regarding ethernet and Wi-Fi.
After you make your choice, you’ll eventually get to the login screen.
IIRC, you need to register first. You only need to do that one time.
(I may not have this sequence 100% correct. I haven’t run emonCMS for about 4 years, and
many changes have been made in that span of time)