Finally you have decided to say goodbye to Arduino and start playing with ARM. You have come to the right page. Let me show you how to setup an environment for the same First download the latest files from ARMDeveloper here. If you have been developing and working with Ubuntu for some time then you … Continue reading Setting up ARM Toolchain on Ubuntu
There are RF based PCBs that are 2 layered too, I accept that but we are not talking about them here, although the answer is simple and universal to actually apply to 2 layered PCBs too. On Google you will find solutions to this issue like RF signal integrity, interference etc but these are the … Continue reading Why are RF PCBs usually 4 layered?
Is it better to run CC2650, CC2640, CC1350 or CC1310 SoCs from Texas Instruments keeping in mind ultra low power and utilizing energy harvesting at 1.8V (but consume larger current) or at higher voltages (like 3.3V ) but consume lesser current? Well, it depends. The performance will be similar because the core runs at 1.6V … Continue reading 1.8V or 3.3V ?
So, I have been making steady progress with the project. Here are some pictures of the latest stage and some videos showing the Power Management in action. The board has been tested with simple blinky program and a BLE program too. But the code for the sensors is yet to be written which I hope … Continue reading Batteryless Bluetooth Beacons update 2
Its been a while since i have put up a blog post. All this time i was busy with my next project, a batteryless bluetooth low energy based device. Here is what the prototype looks like (only the BLE part). It has some issues right now that i am figuring out ans will update as … Continue reading Batteryless Bluetooth Beacon Introduction
I finally received the components form element14 and in a couple of days i also soldered the ics and the passives etc and did some preliminary tests. I am delighted to tell you that the preliminary tests were a success. Over the next few weeks i will do some more extensive tests to check its … Continue reading Energy Harvesting Shields for WiFi Micro – Part 2
A little while ago i got really interested in ultralow power applications and Energy Harvesting. After researching for a while i chose to do some projects that exploit energy harvesting. For my parts selection i decided to go with TI's BQ25505 and BQ25570. I designed shields for my Wifi Micro keeping in mind that my … Continue reading Energy Harvesting Shields for RedBearLab’s CC3200 WiFi Micro
I have been working with Eagle for quite some time but never really got a PCB manufactured. almost all the time i used the toner transfer method to make homebrew PCBs. But then i took a project in which i had to use SMD components and i could no longer use toner transfer method because … Continue reading Panelizing and Gerber generation in Eagle
Finally my design arrived. Take a look -> Apart from the sensor hub i had made 3 other different circuits in the same panel.(Check my Eagle post on how to do that) like this - This was the first time that i ever got a PCB fabricated in a facility and my first … Continue reading Sensor Hub Update