Let's Make Robots!


Interacts with human beings, meows and purrs
Using a
Update 29/05/2012 Eye mechanism designed. Built the mouth, just missing the rubber pipe. Update 28/05/2012 Schematic of the ISD2560 added. A 2 DOF rubber pipe … Read more

programming picaxe

ok you probably get hundreds of people asking this queastion but i cant program my picaxe 08m2

it says error hardware not found on com1 (com one is the only one it will let me select)

i have tried everything  (apart from reset for i see no way to reset a picaxe 08m2

i am using the axe027 usb cable please help



Alternative to AXE027 USB Cable

One place where the "going got rough" with regards to my (Argentine) Picaxe Developer Site is with a Picaxe serial download cable that IS NOT RS-232, but USB instead.

If I can only reach those with a serial port on their PCs, then this project will never prosper. USB is a MUST.

This is my project [DON'T LOOK, JUST BORING]

STARTED 5.7.2012

Okay, so here's my project, what i am designing.
It is a robot arm!
Some stats:

- 4 servos, not very big
- PICAXE 14M as brain
- SM-S3317S 2.0kg at 4.8V
- 4 Rechargeable 1.2V batteries
- Polymorph and lightweight woodsticks as materials 
- Maybe somekind of sensor and IR receiver
- Potentiometer to control

Pictures coming soon!

Phase 1 (Updated 29/4 - New video & code.)     Here's a little robot built on CTC's excellent Tiny Tank chassis. It's based on a Picaxe 28X2 which … Read more

EasyVR to Picaxe-28X1


I have bought a "Start here V 2.0" robot kit, with a Picaxe-28x1 IC, and Picaxe-28 Project board. I want to get the robot to take voice commands, and be able to talk back, and have been looking at the EasyVR Module.

But reading the manual for the EasyVR I can't figure out how to program the module trough the Picaxe microcontroller. Is this at all posible?

The manual mentions ROBONOVA, Arduino and Parallax Basic Stamp and says that they have a "bridge" program, but doesn't mention Picaxe.

DIY RC, Moving to Arduino, RasPi, and other questions

I have added more questions to the end of this, so please have a look.


I sort of started this question on another page, but I thought I'd move it here so I'm not hijacking someone else's page.

2 questions here;

1: I'm looking to move from using picaxe to Arduino. Can anyone give me any pointers on where to start? (I know this question's probably been asked elsewhere on LMR)

Can Arduino shields be used on Picaxe


I'm new to robotics, and just bought my first "LMR start here" robot kit. I haven"t recived it yet, but I am all ready having great plans about how to modify it (as I guess all newbies do).

So I have searched around to see what is out there, and I see that there are a lot of modules (or shields as they seems to be called in the robotics world) that can be conected stright to the Arduino.

So my question is, having just bought a Picaxe-28 Project Board, with a Picaxe-28X1 Microprocessor; can the Arduino shield be used with the Picaxe-28 Project Board?

Picaxe M2 series 'multitasking'.

The M2 Picaxe series has multitasking (time slicing) to allow up to 4 tasks to run simultaneously which the manual says is to make monitoring switches and flashing LEDs etc, easier to program.  I was just wondering has anyone explored how far you can take the multiple tasks idea.  Has anyone, for example, tried controlling a servo, monitoring switches and varying PWM on a motor?

I've got a feeling that everything will get a bit glitchy, but perfectly happy to be proved wrong.

LMR Robot Building Workshop at Maker Faire NYC!

Ta Daa!

Thanks to the kind sponsorship of our friends at  we will be able to offer a robot building workshop at Maker Faire in New York this year!

 Details will follow, but Picaxe will supply the PICAXE-08 Motor Driver Board, along with some funding.

SISTEMA SPUTNIK: Argentina´s own Picaxe Developer´s Site

Esteemed colleagues, members and friends,

It is with a great sense of acomplishment that I share with you my humble enterprise. I have just launched a website called Sistema Sputnik, that aims at teaching basic electronics to teenagers and grown ups who wish to take it up as a hobby. Picaxe Microcontrollers are at the heart of the system itself.

Picaxe LCD problem


A friend of mine is using a picaxe 20m2 to drive a milford instrument 20x4 LCD with a serial backpack. However, when he turns it on, it just comes on with a screen filled with triangles. The LCD is connected to pin 0 .The code he's running is below. What is the problem?

PS: This is my first post, so sorry if it's in the wrong place.



Eight servos - Picaxe 28

I'm trying to build a climbing robot with a Picaxe-28 project board, however according to my design, I need 8 servos. Do you think there would be a problem to plug so many of those? Is there a way to feed the servos from two different sources of energy? As far as I know, the board I'm using is capable to manage that amount of servos. What do you think?

I know nothing about this so maybe a little orientation about what should I read would be great! Thanks in advance.

IR sensor-Again

I have again problems with my IR-sensors. 

I have two of these http://www.dfrobot.com/index.php?route=product/product&path=36_55&product_id=114 connected to input pin 6 and 7 on my 28x1 picaxe projectboard. And even when there's no program on the microcontroller the sensors think that there's something infront of them, but there isn't.

Drives slowly and nearly unstoppably looking for infrared fish to eat.
Using a
Videos: Introducing FishTankFishTank UpdateFish Tank Meets Piranha TankCode: ver 0.3 is the basic code with obstacle avoidance and IR followingver 0.4 adds some … Read more

PICAXE HWPM - 2 motors

I'm having trouble trying to understand how to use HPWM to control both motors of my 2-wheeled robot.

Failed at the first hurdle!

Hello guys,

I'm asking for advice as I've failed at the first hurdle with my Start Here Robot. I thought I would first make an LED flash using the PICAXE chip but so far I cannot connect to the chip to upload the software!

I am using a PICAXE28X1 and an AXE020 project board as bought in the lovely Start Here bundle!

Matlab and PICAXE comms

Anyone out there who knows how to make Matlab work with serial communications?

I'm in the early stages of writing a matlab program to do inverse kinematics for a leggy kinda robot, and I want to get it to send the numbers to a picaxe via rs232 - seems fairly straightforward?

My test program is behaving wierdly



Picaxe = serial('COM4');

set(Picaxe,'BaudRate', 9600, 'DataBits', 8, 'Parity', 'none','StopBits', 1, 'FlowControl', 'none'); 




B = fread(Picaxe)

Picaxe - USB

I'm working on a new robot and i want to control it with a usb-keyboard,

How can i connect a usb to a Picaxe 28x1 projectboard?

And how can i program it?


Hooking up a servo to picaxe 28x/40x project board.

   On my current project I am using the Picaxe 28x/40x project board and I don't know where to hook up servos on it.  I searched around on the internet a lot but couldn't find anything about where to hook them up.  Not even the board's manual said.  I don't know if I missed it or what but I can't believe that picaxe would just let you go find this out for yourself.  I even entered the code to center a servo and went around on the board and tried to find were it was.  I also remembered to put a 330 omh resistor on the signal line of the servo.  I

This is a very simple robot using only Picaxe-08M. I can be controlled throught computer or it can walk alone. The bateries are only weight for ballance, just to … Read more

Pin Connector size for picaxe

Hi everyone,

My first post here. Started reading this couple of weeks ago and have most of the parts for the start here project. 

Question itself - I am having trouble getting pin connector blocks here in uk and am not sure about the sizes. I AM a beginner here so please bear with me. I have bought 0.1" female pin crimps to make my own jumper cables, however, when I try to hook that up to picaxe board its loose. I assume that thats the wrong size.

So what size pins are they and where in UK could I get them? Or am I completely out of my depths? 

Update April 1st   Well the dust has cleared and I have finished and submitted my Google Science Fair project and I very happy with it.  I have added the site … Read more
As all inventor one should have an assistant. I wanted one like IGOR but as I don't have any hunchback friends and have no plans of digging up corpses and … Read more
Helps newbies to learn how to program
Here I will try to explain general idea behind variables, one of the essentials of programming. And I will try to use following analogy: a glass of water. Here … Read more
Hi, This is second version of my robot Primo. It is Lighter, Faster, Smaller and nicer (I think :D ). It is controlled by Picaxe-08M. I used one IR sensor connected … Read more

Newbie to programming here, I wanted to ask some questions.


I hope I'm posting in the right place, I assume beginners would be the place for me.

There are a couple things I would like to know if are possible.

I would like to manipulate a ring with a motor. But I would like the ring to move to a specific position dictated by a joystick. In short, the marked forward position of the ring would be pointing the same direction as the joystick is pointing.

How to control a motor fwd and revs picaxe -08m2

Hi everyone this is my first forums post here

I have a bit of a problem that i am trying to work out and that is how to control two motor with a picaxe school experimenter board and an -08m2 chip. This is for a very simple robot that should be able to go forward hit an object triggering a switch which will stop the robot, reverse it and then turn it around before moving off to crash into something else.

can anybody help me with any resources or circuit diagrams.

thanks very much