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NodeMCU and Arduino
It seems that lately one has to write a blog post about ESP8266 and/or NodeMCU. I have been remiss, and shall fix this omission forthwith. But I should at least try to make it interesting and original. So I’ll mess around with a recurrent annoying problem I have been dealing with. El Background I have been playing…
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Where are you, clone?
Some months ago I bought a bunch of Nano Pro clones, along with expansion bases (from two different suppliers). I had used a Nano Pro in a previous project, and it was a cheap, reliable option. As usual, I don’t remember where I got the Nano Pros, but I know it wasn’t from the same…
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Talk to me, ATTiny!
Last November (2014), I bought among other things an Tindie product page. I have this knack for buying products that get discontinued within a few days/weeks of my buying them. Sigh… Even though they might be good products. Case in point, this “BlackBox Tech” product — whose seller closed down its Tindie shop. And they had…
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Writing Code for the MicroPython: My setup
Not the coding setup, but the physical one… In the last few posts I showed what could be done with a MicroPython and some sensors. I haven’t had much time lately, what with the evil day-time job getting in the way, but I did play a little with a couple more pieces of my SeeedStudio stash.…
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Rainbows for the Micro Python
Plodding my way through I2C-enabled devices I bought from SeeedStudio, I picked the newly released RGB-LCD — a variation on the old 2 lines of 16 chars LCD screen, where you can set the background colour. The particularity of this machine is that it has TWO I2C devices, one for the LCD, one for the…
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EEP EEP EEPROM
Continuing my experiments with Micro Python, and since I have now a solid code base for I2C on this board, I moved on to another pet project, EEPROM as storage. For a project I have been working on the last two years, a monitoring system, which will translate one day, I hope, into a business…
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MicroPython shows off
I backed on Kickstarter the MicroPython project and promptly forgot about it, as usual – since between the time you back a project and you get the goods, a long time goes, and other things can happen in the mean time, like Tessel for instance… I recently found my v1.0 Micro Python, and decided to play with…
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A minimal “weather” station
I shuttle back and forth between Shenzhen and Hong Kong, and despite the proximity the two cities show sometimes huge differences in weather. Last Friday when I arrived in Hong Kong from a very humid Shenzhen (it went all the way up to 93% humidity), the air in HK felt very dry. And indeed it…
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My RTC has spare memory!
One of the many moving parts of my current “serious” Arduino-based project is that I need to keep an adequate record of the date and time. That was easily-ish solved by purchasing from my dear pals at Seeeduino a Grove DS1307 module. After a few months and some confusion between identically named libraries with widely…
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Open Sesame!
I am still trying to convert my Esplora to a test bed of “Internet of (Useful) Things” – and this time we’ll be playing with RFID. I bought a cheap 125Khz RFID module – UART from SeeedStudio. As in the previous post, about GPS, it was really easy to plug in the RFID module into…
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All Your Wave Are Belong To Us
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