Let's Make Robots!

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Pin Connector size for picaxe

Hi everyone,

My first post here. Started reading this couple of weeks ago and have most of the parts for the start here project. 

Question itself - I am having trouble getting pin connector blocks here in uk and am not sure about the sizes. I AM a beginner here so please bear with me. I have bought 0.1" female pin crimps to make my own jumper cables, however, when I try to hook that up to picaxe board its loose. I assume that thats the wrong size.

So what size pins are they and where in UK could I get them? Or am I completely out of my depths? 

Shared microcontroller pin

A quick search here did not give me any relevant hits. So, I was hoping to ask the electronic gurus here if my plan/idea will work.

My thinking is that the photoresistor will be able to be read by the analog input and, because of the diode, the LED will not light unless the microcontroller is set as an output and set LOW.

EDIT:

Based on the input so far, I have redrawn the circuit. I hope the collective doesn't mind helping me get circuits straight.