First time building - Help connecting ESC to Flight Controller

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Happy New Year to you all!

So I am building my first 5" and just need a bit of a pointer if you can help.

FC = Aikon F4 V1.2
ESC = 4in1 Aikon RD32

I've soldered all the motors to the ESC's and installed the battery cables and capacitor to the ESC I'm now trying to connect the ESC to the FC.

I'm intending on using the quick connect cable but have a couple of questions about this.

the pin outputs on the esc are
Telemetry
Current
ESC4
ESC3
ESC2
ESC1
VBAT
GND

The pin output on the FC is
RX4
CURR
S1
S2
S3
S4
5V
BAT
GND
GND

Questions are:

Telemetry goes to RX4?

If I use Telemetry do I need to also connect current or do I simply remove the wire and skip that pin?

VBAT goes to BAT and I do not use the 5V pin on the FC. Is this correct?

Why do I have two Grounds on the FC?

It doesn't matter which ground I use to connect the ESC to the FC?

If anyone can answer any or all of these I'd appreciate it. I've been staring at all the bits for this quad for about 3 days now and want to get it in the air!

Thanks

G.

[ched]

I am not familiar with those components but I have had a quick look at diagrams.
First RX4 for telemetry is good.

This is my guess. The main issue is esc1-4 vs S1-4. I guess ESC1 should be S1 but you might have to swap connectors when you test motor direction in BF (Remember PROPS OFF)

FC       ESC
RX4   -  Telemetry
CURR  -  Current
S1    - ESC1
S2    - ESC2
S3    - ESC3
S4    - ESC4
5V   - NOT CONNECTED
BAT  -    VBAT
GND  -    GND
GND  - NOT CONNECTED

I don't think that the esc telemetry contains current data so extra wire will help provide current in bf osd.
Hope that helps.

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Thanks Ched. I got your reply while I was out having New Years Day Drinks (ONly one becaue I was driving) anyway returned home and started to tinker with this. Before I left I had already set up the connector with the ESCs, Bat, ground and telemetry and had removed current as I thought that it would be covered by the telemetry wire. When I plugged it in to beta flight it was connecting and when I plugged the battery in I got the first three beeps but not the "beee-bop" at the end. Testing the motors produced nothing.

After reading your post I thought that adding in the current wire might sort the problem out as I was thinking that the FC might need the current wire to send the ESC the 'turn on' signal so I connected it up but then I went to connect the battery and I hear a small 'pop' as the battery conections met and the FC would not connect to beta flight. After mucking around with it for a while with no joy I removed the FC completely from the stack and tried to go into boot mode, however the FC got really hot and I assume that it is now fried.

I'll order a new one tommorow but do you think that I could also have damaged the ESC, or even the motors as well.

As this is literally my first time doing anything electronical I'm going through a massive learning curve here and although I've read and watched as much as I can I'm struggling a bit to apply everything.

I've checked all the connections and can't see any problems, does anyone know what I might have done wrong here?

Cheers

G.

[ched]

Sorry to hear you damaged the FC. Reply after more than 1 beer!
Plug in new fc to computer/betaflight with USB and check it works before soldering.
A smoke stopper might help - Google it.
Check with a magnifier all connections for shorts. Also don't rely on colour codes check actual wire start to end.
I assume you xt60 connects just to esc board? While it's a bit unusual to fry a fc as vbat is coming from esc it would be wise to double/triple check esc to fc connections.

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no worries. I've ordered a new fc and esc today so hopefully get this thing in the air for the weekend.

I'm' going to blame my dodgy soldering for now haha.