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Organizing my parts drawer, I found in the Picaxe bin a 14 pin Microchip SMT device, a 16F1825 Looking at the Picaxe Manual 1, I cannot see any device that matches. I know that the 14M2 chip is labeled as such. But somewhere else I read that some 14M2 could be labeled with the original...

From time to time, I like to browse IC datasheets to view new (to me) devices which would pique my interest. Double bonus if they are Picaxe-able. As such I would like to share a particular Texas Instruments PGA2311, which should be a bonus for anyone thinking of building a high performance...

An unknown -at least for me- Chinese IC manufacturer (Hiliwi) produces a line of of highly integrated AC powerline measurement devices. Some background first; I've designed and built powerline meters for over 25 years now. Hiliwi's most advanced IC, the HLW8112 performs a myriad of measurements...

It appears that most new interesting ICs are coming from previously unknown Chinese companies. I recently “discovered” Shenzen Titan Microelectronics, which has several very desirable ICs which of course, have available evaluation boards at rock bottom prices. One such IC is the TM1638, which...

It is almost a year (June 11), that Hippy last posted here. An explanation was provided by RevEd that, due to the pandemic, he had been placed in “administrative furlough”, or words in that extent. Now that it appears that the whole World is getting back on their feet, is Hippy coming back...

I have had an AXE033 for several years to debug my projects, but I have been out of practice related to operating it with I2C that somehow I can't make it work. For instance, if I use the serial input to display 8 bytes separated by a space, It compiles and works just dandy: Serout B.5,N2400...

Simple question; I have a Picaxe project which runs on 3.3V, but requires software updates. I originally programmed the Picaxe in a test socket running at 5V. I've always used the AXE027 cable, which in my understanding will output 5V TTL levels. Will the Picaxe's serial input be damaged if I...

A painful learning experience that I would like to share with others. For a 5 volt supply and running at 100khz, the standard 10k resistors do the job quite nicely. But on a project which had up to 8 slaveI2C devices which had to be queried constantly I found that I required to run the bus at...

I am planning to build a light chaser, on which the strings of LEDs is lit up with sequences like the following example: 0000 0000 1000 0000 0100 0000 0010 0000 0001 0000 0000 1000 0000 0100 0000 0010 0000 0001 then a new sequence follows: 1100 0000 0110 0000 0011 0000 0001 1000 0000 1100 0000...

I will be working on a project running from supercaps in the near future, and was looking at ways to minimize current consumption, for obvious reasons. I will write about this project later. Right now, I investigated the 14M2's current draw vs frequency, and in the sleep and disablebod modes. I...

Looong time, I've posted in this forum. My PICAXE basic is somewhat rusted, so this may be a very simple question to some of you. What is required to port original 20M software to a modern 20X or 20M2? I've an old project which I accidentally damaged the 20M. I already have a 20X which could...

I would love to hear comments from our down under friends about the following news: http://www.dw.com/en/tesla-launches-worlds-biggest-battery-in-australia/a-41613121 I had read a Silicon Chip editorial page where it had been complained the SA's government had relied way too much on renewables...

And Paint is gone! I know, I know.............now we have Paint 3D. Call me a Luddite, but I liked Paint. Why could they not both coexist?

I am planning to build a Picaxe system which will be powered from a 3V3 supply. But like all my projects, I would like to maintain software upgrade capabilities. However, the AXE027 is a 5V-only device. I was planning to include a resistive divider for Serial In pin, and a Mosfet level...

How to marry ancient display technology, namely Dekatrons, Nixies and neon lamps, to a Picaxe? When I was young, I built several idiot boxes employing neon lamps. Time to marry modern technology with ancient display technology https://youtu.be/E-b_0onYtIk

What is the Picaxe's temperature grade? Commercial 0 to +70C? I am planning to have an application that it is continuously at +60C. I know that I have margin, but had hoped to at least have industrial grade range.

The ultimate idiot box, what can I say. Chirping noise added for good measure. Its total nonsense and complete uselessness makes it fascinating to watch. The Picaxe generates random sequences which, via the proper interface circuits, drive the Dekatron, Nixie and neon lamps...

A few weeks back, I opened up the following thread, asking how to measure powerline frequencies with a resolution of two decimals. http://www.picaxeforum.co.uk/showthread.php?29572-Accurate-powerline-frequency-meter This may seem fairly straightforward, and there are many ways to approach this...

I was playing with a 28X2 had to run quite fast, and therefore I decided to use an external 8Mhz resonator and use the setfreq EM32 function. Upon debugging the circuit, I noticed that the code was running much slower. Long story short, I had failed to solder the resonator! Soldering it and...

My problem: measure powerline frequency accurate to 2 decimals. If the frequency is 59.99 Hz, I want to know that much, and not round it off to 60 Hz. What I know: I will require an accurate and stable master timebase. No worries, mate. I have a +/- 1 ppm TCXO Straightforward but not very...