Let's Make Robots!


Suicidal Picaxe Program

Here's what happens on a Picaxe 28x1 in a project board when you connect pin C.7 to the Reset pin. Check out areas F and H in this photo.

The reset function in a Pic(axe) is made so that when it is pulled low, the chip resets. An on-board 4700 Ω resistor keeps the pin high during normal operation. The little button pulls it down.

This Picaxe really is stuck in a moment and refuses to believe:

Lcd 20x4 and Picaxe 28X1

hi have one of these 20x4 screens does any one have a pic of it attached to a picaxe 28x1 project board

Darwin is a hacker

How many monkeys on type writers does it take to write the collected works of Shakespeare? Or Asimov for that matter? It has been claimed, but never tested, that a limited amount of monkeys will indeed produce such a work.

Given enough time...

Lcd 16x2 and Picaxe 28X1

hi i am going to buy a 16x2 lcd screen from ebay and need to know how to connect it to the picaxe 28x1 board

the lcd screen is the same as this one

any help is appreceated

Test bed for a 6 legged, 3 servo walker.
Using a
I was so impressed by the video of the Pololu hexapod walker I thought I'd have a go at one of my own.  This is a rebuild of my initial attempt using a PicAxe … Read more
The PICaxe USB cable is just a USB-Serial Converter.  Like a lot of USB-Serial converters, it's based on the FTDI 232 chip.  This means you can use most FTDI … Read more


Hi guys,

I've finally found time to test te ADC and PWM capabillities of my picaxe microcontroller :)

Sorry for my bad english, but I'm a little bit tired ;)



added an SRF05 ultrasound sensor for some cool FX ;)

UNIO memory breakout board

A few weeks back I aquired some memory chips(samples rock). These are the special unio memory chips, essentually 1 wire for both input and output. As this is an 8 pin chip with only 3 of the pins being useful, I decided to try to make a simple breakout board with some small 5x5 hole pcb boards I grabbed from SF. These unio chips can be used with the20x2, 28x2 and 40x2 and the three pins are vcc, vss and I/O. The chip id is 11aa040(4k memory)

As recommended, I've added a small pullup resistor to the board. This is the results of...

AXE121 is an cheap and easy to use Line Follower Kit that can be easily connected to the Picaxe 28 pin Project board. You can buy it on the PICAXE on-line … Read more

LCD03 and PICAXE 28 pin Project Board


Does anyone know how to connect a LCD03 to a picaxe 28x project board?

EDIT: I've already connected the LCD successfully to the board :D.

Navigates around via ultrasound, turns on the lights when it gets darker, looks just awful and feels raped.
Using a
First of all, hello LMR! I'm new here so very impatient to learn everything and meet everybody. I saw this website few months ago and instantly fell in love with … Read more


Yet another PWM Picaxe question

I am programming my Mr Basic with Mr Basic moron driver. I use a Picaxe 28x1. It is a very basic setup indeed, with a small servo carrying a sharp IR distance sensor.

After reading many pages of manuals and LMR and example code of other victims, I ran into a wall. It's the dreaded "PWM and servopos don't mix" wall on picaxes.

Super Capacitor in solar power supply - a few queries

I intend to build a remote 'weather station'

The station will:

  • Be completley independant of any external power, ie, it will produce its own power via solar cell(s)
  • Measure temperature only
  • Transmit its finding over an RF link to an indoors reciever

Instead of using a rechargeable battery supply with charger circuit, i have decided to use a 35F, 2.7V super capacitor to smooth and store power.

Navigates around via ultrasound without falling using LED and LDR, Follows lines.
Using a
This is my first homemade robot. It is inspired on the Start Here Robot and Amanda LDR. Changes: Read more
Lights up when it becomes dark and lets you get in bed without breaking your feet or furniture in the bedroom :D
This is my little LightBox, a night light. Basically what it does: When you switch off lights, it lights up for a minute for you to reach your bed without accidents … Read more
Has the potential to be a slave-master to any of my projects.
Using a
This remote represents my journey from knowing absolutley nothing about RF communications, to a little bit. Built from scratch, the remote runs off a PICAXE 28X2 … Read more

Looking for Feedback on PICaxe Platform Module

I've been working a PICaxe platform module.  I did a V1 a few months ago, and recently re-did it.  Here's a prototype of V2;


I've used the same power stage as the Propeller Platform sD - it's 5v @ 1.5A and 3.3v @1.5A with an extremely low dropout of 100mV.  Standard power and programming jack, and it has power indicator lights.

I need to make a few changes, so I thought I'd get additional feedback.

Hi guys (and girls) I need some help here. I’m trying to make a beads sorter for my kids, but my funnel approach is not working. Read more

SolderJunkie Construction


Hi, I have started work on project named SolderJunkie. I want it to be a motorized solder fume extractor. He is going to use a Picaxe 28x1 as his brain, DAGU IR compound eye, few servos and CPU cooler for parts. I only started construction of mechanics, so far. Here is his first pic:


Obstacle avoider. Other behaviours planned.
Using a
Early March - GREAT PROGRESS - Giving it a brain, and a problem solved. I've built the brain-board with its 20x2, pluggged everything together and IT'S ALIVE! - … Read more
Simulates firefly synchronization
First off all, apologies for the lack of video. Read more
I had some RGB LEDs lying around and decided to make a night light for my kids. Read more
If you are running out of input/output pins of your Picaxe here's something that might help you: Picaxe's configurable input/output pins can be used in three … Read more

Can these displays be controlled by a Picaxe?

I found these 2 displays in an old cd/casete/radio combo and was wondering if they were worth keeping, 
and if they could be controlled using a Picaxe.
I know that a picaxe can control a display buy using a serial interface but these ones dont have that,
they have about 30 pins, not including the ones for the back lite. 

SF order on it's way[shipped!]

Since it's been a while since anyone has posted on this forum, just thought I'd post something.

Finally put my order in thats been in the cart on that fateful freeday. added a couple extra things to it as well since I have a mini project going.

Opted to get the polulu trex motor driver as well since my hbridge attempt has yet to work(though I haven't tried to trouble shoot it for a while) .

Got a couple of 20x2's to see what they are like and since they had some sweet hw access. Grabbed a couple of atmel 2313's since they have built in uarts.  

Going to build a YDM!

'Going to build a YDM'

Bit ambitious as a first project, but I have 'some' background in programing.

Right now I am a student at University of Idaho. I am taking C++ and attend the ACM meetings. ACM is a group on campus that does programing challenges and is now dabling in robotics. They recently got an Arduino board, and it is my understanding that it uses C++.

This will be my first robot, except for a semester in high school where I programed a robot to navigate a maze using only a sequence of commands.

Motor drivers?

Does anyone know of high current ( 2.5 Amps per motor) motor drivers which are compatible with Picaxe AND PWM? I need to drive 2 motors.