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A photograph. Top - Range 0 to 1023 expressed as 0 to 0x3FF Middle - Range 0 to 255. Bottom - Range 0 to 5v expressed as 0 to 500

I thought I would share replacement firmware for the Picaxe Analogue Calibration Board. http://www.picaxe.com/docs/BAS810.pdf The board came with a very old part the 16c710, well mine did, and it failed this morning. Replaced the fail part with a 16f1847 (same pinout) and ten minutes...

My breakout board.

This is very funny, please have a look when you get a moment

Code for control of DC motor using back emf using 18m2. Works very well. Controls two DC motors via L293D Bi-directional feedback Each motor is controller independently Feedback used to ensure motor is at correct speed and to adjustment to ensure each wheel is at the same speed This uses...

Please find attached the FAQ I have put together. I get many emails so I think this may help. Anobium

Updated code. Demo code supports 0-F characters but shows the methods to display any character. Based on Ron Hacketts good work. ' === LED7219_0_F.bas ============= 2012.02.19 ============= Ron Hackett === ' Updated by Evan Venn to support 0-F chars and lookup table and corrected use of...

Graph of data transferred to Excel This is a graph of data that has been transferred to Excel.

I just posted a completed project, see here I used the FX-9750G model, but, this will work on newer and faster models of the Casio calculator. Thanks for the help recently in completing the code - thank you Anobium

I have just completed the Picaxe Casio Calculator Data Logger II. This was inspired by a piece of work completed by Mike Fenton. See here - the major differences 1) handles all the data processing, 2) bi-directional communications for setup and config and 3) up to 1530 samples. I have built...

I did what Geoff recommended. Just extracted and calculated..... Resulting code now caters for WORDS = 0 to 65535. symbol valueout = w2 symbol vname = b18 symbol checksum = b19 symbol byteval2 = b20 symbol byteval1 = b21 symbol hnunitsval = b22 ' 65 53 5 symbol units = b27 symbol tens=...

I am completing a project to use my old Casio graphics calculator as a datalogger and graphical display for a Picaxe project. The Picaxe gathers the data and sends the data to the calculator. It all works very nicely - I have a rolling set of data points being captured and the data is being...

I am using the PE simulate code that does work when downloaded to a Picaxe 14m2. symbol commsout = b.0 serout commsout,N2400_4, ("¯A") serout commsout,N2400_4, ("_A") serout commsout,N2400_4, ("-A") I am showing the tristate of a port via a comms port. I am using these characters to show...

I will get my scope out and look at the charging rates when I get a moment this week. I did not show the 220ohm current limiting resistor that I have between this circuit and the Picaxe - an error in the diagram. This is the circuit

I am trying to use the approach shown at the bottom of this web page http://www.ladyada.net/learn/sensors/fsr.html to read the value of the FSR. When I calibrate using a 10K Analog pot I get 4 values shown in the terminal of 0,1,2 and 3. These values are representative of the value of the...

I broke the tip off the end of the stereo connector on my AXE027. Can I simply 'chop' the end off and replace with a new stereo connector? Before you all wonder how this happened.... I dropped the cable and then ran over the connector with the wheel of my chair. arghhhhh! I have ordered...

I have updated the blog with a video of progress of the energy metering project. I know this is an recurring project but the objective is to support some real research and the Cloud has to fit in the story somewhere.... :-) See this blog entry...

Here is video of the metering solution using a Picaxe and some Google APIs. This is a work in progress but now I have overcome the architectural issues I can expand to include more information. http://youtu.be/wgz572gc45k The video show how gas usage data can be presented via the Cloud. I...

This is the graph of my test data. I can provide the URL of this test data and my real data if you contact me. This is a standard Google graph and this means that I can choose from the many Google graphs styles to present the energy usage information. I am currently using an annotated...

So far, with the help of the Forum, I am able to monitor gas usage and then publish the information as a graph. The architecture to support this consists of the following. Schulmberger Gas Meter G5 Model circa 1975 Picaxe 14m2 - this is MOST of the development work! my Wintel server (Wintel) A...