This is just a quick log to mention that I have finally ordered the PCBs so I can actually test the design :)Previously I have also verified that it is possible to run the ESP32 port of Grbl on the Adafruit Huzzah32 Feather, which means it should be...
I added another header that exposes SPI and two more pins, so it's easy to add a wireless module - or anything else SPI. It's basically some holes in the PCB where I had space left. Easiest way to add wireless is to just a Feather board that already...
The project is in a fully functional state and I'm happy with it's operation. The next things I will be working on is a cover to protect the Feather and Lithium Polymer batter. This is reasonably documented so I figured it's time to publish this.
Thanks to the generosity of Adafruit Industries, the contest now has more prizes. We will have 5 Adafruit HUZZAH Feather boards to give away. They will go to the second, third, fourth, fifth and sixth best projects.
First thermostat runtime test results The good news is that with the eInk display, the Feather is able to run longer than the target goal of 72hrs. From start of test, until approximately 81 hrs in, the measured voltage off the Feather appears to match...
Figured out what components I wanted for this board. Only 16 components needed (excluding the Feather!). The BOM can be found on Octopart. This may change if I find I need additional parts.
Revision 1.0 is done! This includes the schematic, basic layout and connections of components. Due to component size, this Featherwing is much larger than the Feather, but should still work. Next step is to choose the individual components .
I have successfully built a proof-of-concept using Feather ESP8266s (I already had them laying around). Two bread boards on my desk, one with three buttons. Push a button and both systems play the same sound file. :-)
Last week, we put in the code for the two feather boards to talk to each other. Now, we are going to put in code so that the feather boards can control the slide potentiometer to remotely control the slider, which has been 3D printed. We are also working...
The firmware (FAIO_Firmware) can be downloaded from the GitHub repository under software directory. https://github.com/milador/FAIO/tree/master/Software/FAIO_Firmware The firmware includes three files: BluefruitConfig.h BluefruitRoutines.h FAIO_Firmware.ino...
Ok, just cut the traces from the TX/RX pins and rewired from 2 pins that were being used for the RGB button. Haven't got a working multimeter so will have to check in a few days but this should allow the serial chip to sleep. For anybody using a nrf52...
I needed to make something quick and easy for measuring voltage. I didn't want to spend a lot of money, and I wanted to leverage components I already had.I've updated the components section to build exactly what I've built.... but I strongly suggest...