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Category: i2c

Weather 2 Board and ESP8266

December 4, 2016 Peter ScargillBME280, ESP-12, ESP-12E, ESP-12F, ESP8266, i2c, SI11321 Comment on Weather 2 Board and ESP8266

NOT the cheapest board on the planet, I was handed a couple of these little boards by a friend this weekend.. the weather-2 board. The board uses 2 i2c chips – the BME280 which as you may know is a miraculous little chip offering temperature, humidity and pressure readings all…

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I2C Expansion for Pi and ESP8266

November 11, 2016November 11, 2016 Peter ScargillESP8266, i2c, Raspberry Pi 2, Raspberry Pi 350 Comments on I2C Expansion for Pi and ESP8266

Want 64 GPIO pins on your ESP8266 or Raspberry Pi? Read on. If like me you are not THAT familiar with I2c, you might find the results of my  experiments interesting and perhaps even useful. If like me you are not THAT familiar with I2c, you might find the results…

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The Light Fantastic

November 4, 2016November 9, 2016 Peter ScargillESP8266, GY-30, home control, i2c10 Comments on The Light Fantastic

This morning, a long-forgotten package turned up for me – a cheap but accurate light level sensor from China – claimed to be around 1 lux accuracy and giving a direct output in lux. A small board is available here in Britain for around £4 or the identical board from…

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Faster ESP I2C

August 30, 2016August 30, 2016 Peter ScargillArduino, ESP12, ESP12E, ESP12F, ESP8266, ESP8266 SDK, i2c24 Comments on Faster ESP I2C

Experimenting with I2c on the ESP8266? I am – and I’m having a great time with it. If you’re using my code you don’t really need to think about it but if you’re hunting around for better I2c for the ESP – or maybe interfacing the ESP8266 to Arduino –…

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I2C the Easy Way

August 29, 2016September 22, 2016 Peter ScargillArduino, ESP12, ESP12E, ESP12F, ESP8266, i2c8 Comments on I2C the Easy Way

If you’re going to experiment with I2C – may as well do it the easy way. Having spent the past few days with a desk that looks remarkably like a bowl of spaghetti, I’ve finally gotten around to making a special IOTBEAR board up for the job. 18 each of…

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Midweek Ramblings

August 17, 2016August 17, 2016 Peter Scargillhardware, home control, i2c, Temperature logging13 Comments on Midweek Ramblings

Following my addition of the BME280 code to Home Control 2016, a couple of guys have suggested they might like to see more accuracy than the integer I use for temperature so I’ve added a new polled value {hightemperature} which is simply the temperature value *10 – but with that…

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I2C Continuum

July 31, 2016April 9, 2017 Peter ScargillArduino, ESP12, ESP12E, ESP12F, ESP8266, i2c, LCD, OLED59 Comments on I2C Continuum

Updated August 07. 2016: This article which started off discussing the “new addition” of i2c to the home control software, is now NOT ONLY about an I2c  2/4 line LCD display facility recently added to the ESP8266 boards – but there’s a PARALLEL version as well, making use of GPIO…

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I2C Conundrums

July 28, 2016July 28, 2016 Peter Scargilli2c52 Comments on I2C Conundrums

Resolved  – working though still don’t know why Arduino single write was causing problems – however – got a way around it. Firstly why am I doing this i2c thing? Well, the little ESP8266 is a wonderful thing but there are some chips out there that are really neat and…

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Sunday Morning Experimenting

July 17, 2016July 17, 2016 Peter ScargillESP32, ESP8266, i2c21 Comments on Sunday Morning Experimenting

I figured after a couple of horrendous days figuring out what was wrong with my ROMS, it was time for a morning’s relaxing.  Some time ago I added I2c to the Home Control software but never actually got around to doing anything with it.  The i2c parallel expansion modules I…

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As I have no idea of your level of technical skill or the requirements of your country laws in terms of electricity supply etc, I accept no responsibility for any damage attributed to following advice in these pages.

When dealing with wall outlet (high) voltages you should satisfy yourself that whatever you are doing is safe and if unsure, seek advice from someone who is sure.
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