I recently purchased an Arduino Due from an $18USD credit from ITEAD. I immediately went searching for something unique to use it for, that’s when I found the ElectroSmash pedalSHEILD and thought that’s the perfect thing.
Above is a picture off Electrosmash’s website showing how it all fits together, below is my finished product.
It took me about two hours to complete the kit. The instructions were clear and precise and plenty of pictures if you needed to double check something.
Below is the ITEAD Arduino Due clone that was purchased separately. This is the only board that can be used with the pedalSHIELD Due, however there’s the option for the Arduino Uno called the pedalSHIELD Uno. (not pictured)
At this stage I’ve tried all the example sketches but haven’t had time yet to try my hand at making something uniquely my own sound.
On September 28th the STEMTera bread board was launched on Kickstarter. This is an Arduino compatible micro controller inside a modified solder less bread board. This caught my attention because I mainly tinker with Arduino stuff whilst sitting on the couch! So there are times when I’d have multiple pieces of gear with a rat’s nest of wires (that’s pretty much the norm for this kind of thing!) However the STEMTera bread board essentially removes the need to have your micro controller then a bread board for components , in that you can place items directly on the STEMTera thus saving some space (if that’s a concern) so I pledged for the $45 backing with delivery for mid to late December. Oh and I got mine in black as that to me seemed logical for the least amount of light bleeding through the plastic cover.
Skip forward a few weeks and I’m now using the STEMTera board as my go to board for anything Atmel 328p based. I’m kind of hoping that a SAMD (M0) or STM32 (M3) will become a reality in the not to distant future.
With Xmas not far away I’d ordered some LED tea Lights for the wife to make some decorations to give away to the family. I was interested to find out what was driving the LED, but because all the candles were required I was not able to autopsy one to find out. This got me thinking, I have an Adafruit Trinket that would be great to drive an LED via PWM and create the desired flame effect.
Now after searching the web for examples of what it was I wanted to do, I finally settled on this one from .ledhacker This is pretty much what I was after! Here’s a copy of that original code…
So I loaded this on the Trinket and at first I didn’t include a current limiting resistor and the LED showed a slight flicker, but not anything like a flickering tea light! After adding the current limiting resistor (220Ω)and that didn’t really change much except for dim the LED ever so slightly. So obviously I needed to tweak the code and see what I end up with..
Now my first thoughts on why it didn’t work out as expected is that the code was obviously written for a 5v logic, however this trinket is 3.3v logic. I made the following changes (after a little fiddling)and got more of what I was after 🙂
< #define FLICKER_LED_PIN 10
---
> #define FLICKER_LED_PIN 0
4,5c4,5
< static int flicker_low_min = 200;
< static int flicker_low_max = 240;
---
> static int flicker_low_min = 15;
> static int flicker_low_max = 175;
8c8
< static int flicker_high_min = 230;
---
> static int flicker_high_min = 180;
13c13
< static int flicker_hold_min = 40; // milliseconds
---
> static int flicker_hold_min = 20; // milliseconds
22c22
< static int flicker_speed_min = 900; // microseconds
---
> static int flicker_speed_min = 800; // microseconds
As you can see I only made small changes to some timings and they seemed to work better for the 3.3v logic
The next thing was how long would this run on a 1000mah lipo battery? well, somewhere between 4 to 5 days!
I’ve placed the code and supplement files on github should you wish to make one. 🙂
Over the next coming weeks I’ll be gradually updating old blog posts to be fully compliant to https, Should I find anything that can’t be done then depending on the content I’ll most like just delete it!
For now I’ve forced a redirect from http to https at the server level, hence why some content may not display correctly (especially links to external sites that are http only)
I’ve only ever backed one project on Kickstarter, and so far I’ve never seen the product and just keep getting updates claiming that things are going well, oops no there’s a problem with X… Ok we’re back on track… Nope now there’s problems with Y.
So I backed the ZNAPS project in July 2015 and the initial statement made was that a product would be delivered by December (2015) so here we are now August 2016 and still nothing has even been confirmed as being complete and ready to ship. Ok so this isn’t an issue with Kickstarter, because they are just a means of advertising your product and gaining funds (they take a percentage) so the problem solely lies with the people who are ZNAPS. If you read through the comments on Kickstarter you’ll see comments after comment all stating their dissatisfaction with the way the whole thing has unfolded.
It’s that time again where my phone contract had expired and my Nexus 5 battery was spending more time on the charger than active use. So I was going to look into replacing the battery, but the last time I got a so-called OEM battery (Galaxy Nexus) I got something that said one thing but its actual capacity was something totally different. So I was cautious about getting stung again, plus there was the possibility that I’d bugger up the replacement process and end up with a phone that’s only good for a paperweight!
So I decided to look at what my provider had on offer and was surprised to see that they had the Google Nexus 5X and 6P. I’m not interested in a phone that is borderline to the size of a tablet so we went with the Nexus 5X. I was a little hesitant at first about the Nexus 5X because I initially just thought it would be just a re-release of the original Nexus 5. I was wrong! it’s a new phone altogether and with some noticeable differences.
The next thing to decide on was a suitable case to protect the phone from the day-to-day abuse it will endure. After looking at what was available from the Google Play Store. I was surprised at the costs! really they were expensive with prices ranging from $34AUD to $59AUD. Because you have to purchase them sight unseen, I wasn’t keen to shell out for say the most expensive without seeing some kind of review or similar. Now this is where YouTube is your friend! so after watching several videos on all of the cases, I opted to go with the Adopted Case.
Adafruit like experimenting with products to see what will inspire the electronics enthusiasts around the world. Now I’ve been after the ESP8266 Feather, however they have been unavailable for some time (so damn popular!) so I started looking for something else that had a wifi option. Released on March 23rd was the WICED Feather and I thought that should do the trick and give a challenge as it’s using a cpu I’ve not had much experience with. I’m kind of hooked on Neopixels and from version 1.0.5 of the Adafruit Neopixel Library includes support for the WICED Feather (STM32F2 MCU)
