Ken
You should download the data sheet for your PIC from MicroChip website.
Typically the max current any one pin can drive is 25mA, 100mA total for a port.
So whatever relay you choose must stay below the 25mA level. That is what I told you a while back as a drawback to the relay approach. If you find that you are drawing too much current, you may have to wire up a transistor circuit that drives the current.
The PICKIT2 programmer wont care how you wire things up (other than how it talks to the PIC), but you will need to connect the PICKIT2 programmer to your PIC, through the 6 pin ICSP header I described earlier.
Are you going to use a separate proto or bread board as I mentioned???? Or the demo board that comes with it? I suggest the proto board if the demo board requires soldering (as I said before)
It is very difficult to comment on your questions without a lot more info. You might consider drawing a schematic or something so we are talking off the same page. Also need to know a lot more about what controls you RC truck has on it. Some pictures would help too. Is it a RX with (how many) channels, with standard 3 wire servo cables? Some of the RC trucks have custom electronics to save money.
If you have a standard setup with 3 wire servo cables, you need to switch the signal wire only (this has the PWM signal on it). The power (red typically) and ground (black typically) can be common to all the components. You will need a common ground for all this stuff.
Basically, I just don't have enough info to give you specific guidance at this point...but happy to do so if you provide some info.
Best,
John
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