Let's Make Robots!

Problem to control servo with picaxe

Hi everybody, 

This is the first time i use a picaxe 28x1 and i already have a problem...


Guidelines for new users and first time posters - aka newbies

A while back I think there was some talk about having a questionnaire  or test when a  new user signs up. I, at first did not agree with this but as more and more newbies join, I think that this may be a good idea if nothing, to instill some ground rules for said nubes.

I know this forum is super kind to all of it's users but as of late we've started to see postings that in some peoples(mine) eyes are unnecessary and in some cases downright silly.

C Programming Software for Mac

Hello LMR. I have recently been introduced to programming in the C language. Do any of you know or reccommend any specific software for programming? I am using a Mac Leopard 10.5.7.....

Where to put an On/Off Switch on Picaxe 28x1


While I'm trying to solve my distance sensor problems , I've found that it would be convenient to have  an on/off toggle switch to be able to turn off the robot any time instead of having to wait until the program ends or replug the robot back into my computer to download a blank program to get it to stop moving. My question is: where on the board would I put this switch?

I am using the the starter pack with Picaxe 28x1 microcontroller and board.



Hello, I look for an advice on the cards of programming for a future robot. I am going to build a "robot sumo" wrestling! But my problem it is because I do not arrive has to find a good card(map), I hesitate between some card(map) of programming as: PICAXE-28X1 or Cerebellum: http://botrics.com/products/cereb/ . I have the impression(printing) that it is the almost similar sound card but the picaxe in the air(sight) of credit note more memory(report)? Can you give him(it) advice(councils) to choose one maid card as my "robot sumo" wrestling?

Admin Edit:

Wherever you see Admin Edit: in a post it is because as I see posts that need cleaned up (title changed, useless posts removed, etc.) I am editting them and cleaning them up. We need to cut down on posts that have no relevance to the original post. This just makes too much to read for those who are catching up and doesn't help anyone. If you see a post that needs some cleaning send it to me as a private message and I will look at it.


Im very interested in PIC's but dont noe where to start :P im using the 16f690/16f680/16lf84a as these are what i have currently. Anyone could guide me as to what beginner kits i need and any tutorials that are good. I have looked at baseoverapex's tutorial. It not really clear. Hope you guys can help

Max712/713 Help!

I have been toying around with different power sources, and in my travels have made a few battery packs recently... The problem is, I havn't bought a charger. Awhile ago i got a few samples of Maxim IC MAX712/713 NiMih/NiCad battery charger ic's. I downloaded the datasheet for it here, but I have a few questions.

Clock movement as lightweight gearbox

Anyone ever try to modify one of those cheap battery operated analog clock mechanisms as gear train?  It would make an extremely lightweight gearbox for small bot.

Some quick research on the web provided some insight on how these things work:


Then I tore open a broken clockwork that's been sitting around for ages. OK, I tore it open first, then did the research. ; j