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Hi, I am hoping that this question is not too stupid!!! I have looked through the manuals..... On the project boards (the 18 for example) the outputs from the darlington chip are negative (0 volts) and then there is a common + rail. My problem is that I have a camera with three connections - a...

Hi, I have a PIR sensor that provides an intermittent output (goes on and off) when detecting a target. When it goes high the first time, I want to turn a video camera on. I then want to keep the camera on for as long as I am getting that intermittent signal. The time between the intermittent...

Hi, I have never done this before, so please bear with me!!! 1) I need to turn an external circuit (about 4 volts) on and off. Is there a circuit diagram that I an refer to for this that shows me a layout? 2) I have a number of inputs - pins that I need to set high or low using internal...

Hi, I have been running two simple circuits with O8M2 chips and all has been working quite well. Then I decided to change the script and upload it - a very simple change. I then uploaded and the circuits are now dead. I have no idea why! A quick explanation of what I have done - reinstalled...