Let's Make Robots!



First bots using Picaxe kit 28. Came across a distributor from my country who bring this item in.

Hook up with Parralax Ping))) instead of SRF05. Im yet to find it locally else have to get it online fly to asia.

Unlike the "Start Here", i did not combine it with the servo since a few of my servo eventually only turn one direction and i've yet to figure it out. Anyone here may be can help me out.

Video will be up soon.




Updated 07 March 09

After the relising left out tutorial on the replacing the darlington with 330ohm, I made the changes and placed the 330ohm resistor onto the pin0. Re programm the used of "start here". Little changes made due to the used of parallax ping))). Video will be up soon. Thanks for the comment and help on the 330ohm resistor.



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Do you have any sample code for the ultrasonic sensor you could send me that would allow me to control 2 motors on from a PIC, im lost.



Thank you

hi guys . im a beginner robot builder. if u can post the source code for this robot , it will b highly appreciatable ! thanksss a bunchhh :)

I guess getting sf05 its the best.

cos now im getting fustrated with the 5v.

hey, i just bought the parallax ping also, could you post some more pics of where you attached it to the 28x?
thanks man.

Somehow now i unable to connect the board/ download the program to the board.

Its all gd since yesterday.


i was just wondering where you learned how to make your own circuit board, i've seen lots of people on this site make their own and its seems like a lot cheaper/ more fun. How do you know where to put all the parts?

You generally arrange the parts in an order that simplifies the connections. Form generally follows function. For example, many picaxes are arranged with inputs on the left and outputs on the right. Naturally then you would put your input circuitry on the left and output circuitry on the right.

This is where it pays to draw a schematic first as it shows clearly which part is connected to what. My schematics generally flow from left to right starting with the power supply then input circuitry and then output circuitry.

Sometimes you may need to have a certain components in certain places. In that case you put those components in first and then work around them as best as possible.

The only rule is to try and keep your connections between components as short and straight as possible to minimise electrical interferance and cross talk.