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Wow, you can tell all that just from that picture? You are correct that the pin is made an input after sending the serial data. What I don't get is why the scope reading looks like 0101010101 when it should be 1010101011. The strange ripples are from the 38kHz carrier frequency used for the IR...

I've taken some oscilloscope readings and have found that a 1 byte frame is roughly 4.2ms long. However, it doesn't look like I imagined it would and it suddenly occurred to me that I may not know how to read an oscilloscope properly :p Here is the reading I got from sending a "U": That...

Ah, Overheads. I knew there had to be a term for it :p Ok, so as per Paul's advice I replaced the sertxd with let b0=1 and it took 199 seconds to process all the looping. Subtract that from the 440 seconds used to transmit single "U"s and with the other maths it results in a frame length of 2.41...

Hey there, I am working on some robots that will use an IR picaxe network. I plan on using 3x 08M2s, each having its own IR LED and receiver. The robots will signal to each other that they want to send a byte message by sending a short high pulse, and then follow with the serial data. What I...