Tapijtklopper wrote:I just need some help with a few parts.
What transistor should i use (T1)?
What LDR should i use (R1)?
Any recommendations about what relay to use (K1)
Your requirements are pretty vague. Let's do this the other way around -
I am going to guess that your Futoba motor only pulls a few amps at most.
This needs to be a relay with a 5-V coil and contacts rated at the motor current (min)
The LDR can probably be a Adafruit ID:161 (also known as a photo-cell or photo resistor)
If you are using a small 5-V relay then you will have a large selection of transistors.
I would probably try a 2N2222 first (ID:756) they are inexpensive and reliable.
If the 2N2222 doesn't work for you then the TIO120 (ID:976) or IRLB8721 (ID:355) should work.
R3 is a variable resistor so that you can adjust the light sensitivity (ID:356)
Don't forget to include the limit switches that turn off the motor when it reaches the fully open and fully closed positions. They were not obvious in the schematic.
Those limit switches are intermixed with relay contacts.
Good luck and let us know how it works out, John