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I am strugling to work out a suitable method of creating a certain logic signal to reset an IC when a USB plug is inserted. The first graph shows the +5V supply from the USB, and the second graph shows the signal that I want to generate in accordance to the first graph. I hope that it makes...

I know that this chip has been discussed here previously (yes - I did a search!), but I failed to find anything relevant to my query. Many of you will know that this is the chip in the USB to Serial download lead, and I wish to include the chip in one of my projects. Having read the datasheet...

I am in need of a sound generated by a small piezo sounder that makes you cringe when you hear it. It does not need to be loud, but it must be uncomfortable to listen to as it will be used as an output from a tamper sensor in a security system. I have already tried to use ascending and...

I am currently half way through studying my A-Level courses, and we are now expected to start thinking about what we intend to do afterwards. I have decided that I would like to go to University to study an Electronic Engineering course. To complement the research that I am doing, I would like...

I have just come to the end of my Year 12 electronics project, and I have already started brainstorming ideas for what I can make next year. I am a dedicated student, and am prepared to go much deeper than I need to to pass my exams. I feel that a really neat thing to have would be a graphic...

After searching the forum, I have not found an answer to this question, which suggests that I may be missing something simple. I am writing a very large program for a project I am working on, but have not yet got the chip (an 18X) I have more than 16 GoSub commands, so have set it to be 256...

I am in the process of making a fairly complex system, and have just a couple of queries. Firstly, I need two variable resistors to make a small joystick, such as on a PS2 controller. I do not know where I can find one of these with springs in, so if anyone knows, it would be helpful. My...

As part of a project that I am working on, I have generated 6 random numbers. The query that I have is how to put these numbers into ascending order. I have used the principle of the bubble sort algorithm, and adapted it for picaxe. Currently, this is the code that I have, working on a 28X...

For my GCSE project, I am attempting to produce a complex random number generator, using Picaxe. I wish to generate a number which must be above one number, but below another. Using the serout command, it will send this number to another picaxe. This second picaxe will convert the number into...

Is it possible to instantly download data from my datalogger to my PC when it records each piece of data? If so, can someone please tell me how to do it.

I have been given a Datalogger to build, but I noticed some small holes, where no legs of components are meant to be. The holes are where the track moves to the other side of the board, but many of them are under components, such as the terminal blocks. Should I solder wires in these holes?