Recent content by BillyGreen1973

I saw this yesterday and couldn't help but think of this thread....

A minor update is available at Picaxe.com revision history reads.. 5.5.1 Added 'Continue anyway?' option on start of duplicate instance Updated to version 2.4 compiler - M2 X2 Added 'ultra' command for ease of use of SRF005 ultrasonic sensor - M2 Added missing NAND and NOR operators - M2 Added...

I have built a smallish tesla coil and have it working fairly well. The main thing in getting better performance is finding the resonant frequency of the secondary coil and changing the primary coil inductance to match the same resonant freq. There is a little gadget based on a 555 that can help...

Hi, Doc. I think you seem to have things a little confused and over complicated. Check this layout, it should help make things a bit clearer. As for the address pins on the EEPROMS etc. just tie them high or low directly so each device has a unique address. Have a look at the Rev-Ed document...

Thanks for the reply. Makes sense really, I just hadn't thought of it that way. On another point, I have been playing with the DPscopeSE v1.02 software and think I may have found a problem. See the two images below. My setup was as follows, Picaxe 28x2 (axe401) running the simple code at...

Hi everyone, I have read the manuals and the axe401 pdf, but can't seem to find the answer to my problem. I am attempting to use the ArduiNIX Nixie driver shield. (http://arduinix.com/) with the Axe401 Shield Base. The Arduinix requires the following code to drive it's 2 BCD converter chips...

After readingthat the M2 range all have some or all I/O pins with controlable 'weak pullups', I decided to figure out the pins that have pullups on the new 08M2. I used this small program to find out. #picaxe 08m2 pullup on main: let b0=pinsb pause 200 goto main When I simulate this...

I was doing a bit of web surfing today and stumbled across this. http://www.1bitsymphony.com/ It's by an artist called Tristan Perich. He produces music using square waves and pwm etc in a microprocessor. The whocircuit is built into a CD jewel case. When I listened to the YouTube clip I was...

As some of you may remember, I started thinking about a Serial LCD shield for the Axe401 Shield Base. I had an idea that it would function just as the Axe033 Serial LCD module does, and use the same commands etc. Well the easiest way to do that was to use the Axe033 firmware chip to base my...

I'm just starting to design a 32 LED controller for an arcade machine project. The 40x2 recieves data from the PC using 'serrxd' in the form of identifer,byte1,byte2,byte3,byte4 It then simply loads the output ports with these bytes, thus controlling 32 leds. The problem I'm having is this...

Here is my latest code for running the Arduino/Freeduino LCD Keypad Shield on the axe401 shield base. A couple of alterations have been made, firstly the pin names have been changed to (protect the innocent ;)) match the shield base numbering system S.0, S.1 etc. Secondly I've added a fairly...

Just a quick pointer, Today I was playing with the Axe401, with a 24LC512 EEPROM in the on board socket (4k7 R's are in place), trying different #Slot programs. I was having trouble using slot 4 (EEPROM), then I realised I needed to remove the H4 LED Enabled jumper to allow correct I2C comms...

Today I updated to 5.3.5 to try the axe401 simulation. I used the code sample given in the axe401.pdf i.e. #picaxe 28x2 #sim shield do high S.13 pause 1000 low S.13 pause 1000 loop It runs fine, however when I tried to run the same code without the '#Sim Shield' directive, and changing the pin...

I received my 28X2's today and quickly got to testing. To check I have everything wired correctly I used this small test program main: for b0=32 to 255 sertxd (b0," ",#b0,cr,lf) ; serout b.7,n2400, (b0," ",#b0,cr,lf) pause 150 next b0 goto main Picaxe runs fine. However the simulation...

I'm using an 18M2 in the SD21 servo module, running off 4x1.5v AA cells. This will be the backbone of a 19 servo robot I am building. So far everything is set up fine, I2C works great and I can control all the servos. The problem I am having is a maths one really. If you read register 65 on...