Let's Make Robots!

Lots of strange Sharp IR Noise…?

Hey everyone. So, I just finished my first robot in a few years, my first being 2 1/2 years ago. This one is a lot more complicated in terms of hardware since I made my own boards and all, and have 5 ICs in one circuit. I'm done with programming and everything runs well but there's one ongoing problem with my Sharp IR GP2D120 sensor.

Accuracy of 28 X1 without external resonator?

In my circuit, I have 2 Picaxe 28X1s. The only suitable external ceramic resonator I have is on the 28 pin project board and I don't want to ruin it by accident during desoldering. I am making my own board for each Picaxe, and need to know how accurate the timing of the Picaxes will be only using the internal resonator. Picaxe A is using 2 PWM channels driving motors on a separate power supply handled by an L293D, all other outputs to drive other ICs, will read 1 ADC channel, 2 digital sensors, and 1 digital input.

Help with Hserin/Hserout commands?

I have 2 Picaxe 28x1's that will need to communicate serially with one another while each performing tasks such as PWM, reading ADC, simple outputs. As I understand, the Hserin and Hserout pins/commands allow the Picaxes to recieve serial data in the background, store it somewhere, and read the stored data whenever necessary. I need Picaxe A to do tasks, and then send 2 variables to Picaxe B without interupting B's program flow. B needs to be able to look up the variable sent from A whenever necessary and continue on. How would I connect the 2 Hserin/Hserout pairs on each Picaxe?

28X1 Pin 7 (Serial Out) Used as Normal Output??

Is it possible to use pin 7 of the Picaxe 28x1, which is normally used in the download circuit, alternately as a normal output that could in my case drive a single LED? If so, what would be the code for it?

Picaxe Serial Communication Through Prog. Socket??

Hey, I'm wondering: If I have 2 Picaxe 28X1's that both have their own programming sockets, after programming them, can I use a male to male audio cable and connect their sockets, and send information from one to the other with serout commands? One 28x1 sends info to the other, no data is sent back, so only on serial line is needed. Is it possible, and how would I implement it?