31 Dec '13, 7pm

Probing the PICAXE, Part 4: In which David experiments with I2C communications using his PICAXE MCU developmen...

In Part 1 of this mini-series I presented an overview of the PICAXE MCU system and performed some simple BASIC programming with my chip. In Part 2 I looked at using the "SIMULATE" and "DEBUG" commands, along with the ADC (analog-to-digital converter), PWM (pulse-width modulated output), and the one-pin display options offered by the PICAXE. In Part 3 I Interfaced my PICAXE to a DS18B20 temperature sensor and some other "One-Wire" devices. The next thing I wanted to try was using I2C chips. I remember reading about the new I2C interface in Elektor magazine in the 1980s, but -- although I have seen it used in quite a few products -- I've never had much to do with it myself. I2C, which stands for Inter-IC Communication, was originally devised by Philips (now NXP) as an attempt to standardise a 2-wire "bus" for communication between integrated circuits in order to save pins. I...

Full article: http://www.eetimes.com/author.asp?section_id=36&doc_id=13...

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Probing the PICAXE, Part 3 | EE Times

Probing the PICAXE, Part 3 | EE Times

eetimes.com 23 Dec '13, 3pm

In part 1 of this mini-series, I provided an overview of the PICAXE system and did some BASIC programming of my chip. In p...

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twitter.com 30 Dec '13, 7pm

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