Both images or in the micro-controller flash memory, and the text is displayed when it is received on the serial line (USB-to-UART). Pressing the user button switches the images and then restores the display of the text.
Text display is made using partial screen refresh.
One more step toward our multifunction “smart” control :)
As we promised to you, we managed to close the next paper soon enougth to get it in Open Silicium #14 !
It should be available in your favorite book store in a few days (in France). If not, consider fiding a new favorite book store !
Much more than a guide to GPIO Demo module programming, you’ll find a step-by-step how-to which will guide you to the depth of these small black chips you can find in an ever-growing number of everyday-life items.
Don’t wait for them to crush you, get ready for the trip and understand their deepest internals to master them and get the most efficient code for your projects.
First, we lowered most of the prices on our products. Have a look to our store. This is mainly an adaptation to the market prices, hopping it will help us sell more.
We also put our new RF-Sub1GHz modules (868/915MHz) in the store. These are available in three declinations: UEXT for the DomoTab project, USB for development or use from any device which has USB host ports, which opens many other use cases and makes debugging easier, and last but not least, the standalone version, which can be powered from a simple AAA rechargeable battery (or anything above 0.9V, so some simple small photovoltaïc cells may do, to be tested).
For those interrested in the LPC1224 micro-controller but do not care about the UEXT connector or DomoTab modules format, the new LPC1224-BO development board is now on sale. It’s a simplified version of the GPIO Demo module.
Another piece of news which should make many of you happy: some of our products are now under CC-by-sa licence.
This change affects the GPIO Demo module, the brand new RF-Sub1GHz modules, and the LPC1224-BO development board.
We launched (at least !) our wiki, though there’s not much there yet (appart from the previously published papers for Open Silicium, and mainly in french, but we will add content in the upcoming weeks and translate what is already there.
And last, for those interested in the micro-controller software, sources for our modules have been re-organised so that support of new modules and exemples for existing ones is easier (using git branches for each module, easily sharring common code).
Ths sources (software) have been improved to make examples or applications creation and use much more practical, and use branches from our git repository to support new modules, including the brand new RF Sub1GHz module (868MHz/915MHz) (prototypes have been tested and validated !).
We’ll try to go on with this pace and get the documentations for all the other products done: DTPlug, USB-UART adapter, but also RF Sub1GHz module and LPC1224-Break-Out board.
The next part of the paper published in Open Silicium number 7 is available in number 8. One could say that’s pure logic, but this time it’s not one, but two papers waiting for your eyes !
The first one (which is the second one in the series) introduces some addons to the schematics, while the second (or third …) moves to the next step and guides you through the steps of the PCB routing process, and of course, using KiCad.
You should not wait to get your hands on it then, or you can keep it at hand as a reference for pcbnew usage, the tool from KiCad suite for the routing process.
This reference manual includes all technical information about the hardware (mechanical data and electronic schematics), some help about the software, and a step by step guide for DIY module assembly (which you can buy either as a kit or monted in our online store).
You will find the papers we wrote on the “Making Of” of the GPIO Demo module in the Open Silicium magazine (the first part is in the number 7, page 38).
These papers will help you with your own module creation, from concept to embedded software programming.
Our 53 minutes long video covers the whole module assembly, showing every step, possible pitfalls and how to avoid them, and how to right eventual mistakes with very few specific knowledges or sofisticated material.
In short, the modern, miniature electronics to everyone!
The “RefCard” is available on our wiki. The version covers all written papers, so there’s more than what is in this first paper.
This paper is the first part of the “Making Of” of our GPIO Demo module, and covers the first part of the electronics schematics, but is also a tutorial for KiCad, a very good electronics CAD free software.
We also wrote the next two papers, one on the remaining parts of the schematics, and one on the PCB layout.
More papers will follow : DIY assembly of the module and embedded programming “from scratch” for the micro-controller.
This first set of papers will be followed by papers explaining how to extend the functionnalities of the module, for example to create a weather station, or control a pluged device’s power.