I have started work on creating a wiki for the Funky sensor – find it here
Using Funky’s boost regulator get steady 3.33V from higher voltage
I would typically think of a boost regulator in the case when I’d like to step-up voltage, and such were my intentions when I introduced the LTC3525 boost regulator chip on the Funky sensor. The idea was to be able to…
Clocking the Funky sensor from RFM12B’s crystal
I have already expressed my thoughts on this, and of course could not resist materializing them. The main reason is that I would like to experiment with IR and RF stuff that requires precise timings. The internal oscillator’s frequency depends notably on…
RFM12B to Raspberry Pi board
I have decided to discontinue the TinySensor project and focus on Funky Sensor as they overlap a lot as functionality. These of you following my posts, know that I have a working prototype for a dedicated board for RFM12 to Pi connectivity,…
Remote keyboard and mouse for Raspberry Pi
This is a little heads-up for those of you (includes me) that don’t want to dedicate a mouse and keyboard to their Pi and would rather use their laptop’s mouse and keyboard. This is a bit different from running remote…
Display for my Raspberry Pi
[Edit] I have now undertaken another approach, worth checking it out here I recently purchased a 4.3″ TFT LCD screen, originally intended for attaching car backup cameras with the intention to use it as a status screen for my Raspberry…
Solar statistics
Earlier this year I purchased a 220l non-pressurized evacuated tube solar heater and installed it myself on my rooftop. It is a relatively cheap (~440 Euro) solution for domestic hot water. I chose the non-pressurized type because of its simplicity…
RFM12B shield for the micro IoT gateway
As I already mentioned, I planned to have a RFM12B shield for the micro IoT gateway. Here is how it is looking, rendered in 3D, still work in progress, but the idea is clear. I wanted to keep the shield…
3D modelling of PCB designs
@Gadjet from http://www.gadjet.co.uk/ showed off some nice 3D renderings of his projects the other day in JeeLab’s forums and had me all excited about it. He used EagleUp, some nice peace of software that turns your Eagle PCB layouts into Google Sketchup…
Micro IoT gateway
I have long wanted to make my own Internet of Things gateway and I wanted it small. I have researched for quite a while on the options, and finally decided to base it on the excellent work done by Simon Küppers…
Super ‘Funky’
Tobias’s original ‘Funky’ had voltage regulator, that I removed in my version in favor of a voltage step-up circuit. How about having both on the Funky and you will decide which one to use depending on the concrete application? Well,…
Interfacing ‘Funky’ to Raspberry Pi
I am finding myself using Funkys for all of my recent projects, so I am thinking of discontinuing the TinySensor. I think the better approach would be to have various ‘shields’ for the Funky rather having hardware on board that…
Measuring humidity and temperature with DHT22 and Funky
I have been playing with DHT11 for some time, only to find out that this sensor is a bad joke. I finally decided to upgrade to the DHT22, which is a magnitude better than the previously mentioned one. I wanted to be…
Clocking ATTiny84 from RFM12B (thinking outloud)
I have been thinking on the possibilities to use external clock source for my ATTiny84 projects for some obvious reasons. Using the internal oscillator works great in most cases, but may not be so accurate in some applications (IR,RF) as it…
Updating my SMS doorbell
I have made some updates to my SMS doorbell project. Previously, I had troubles setting up the email notifications in emoncms, the problem is that I don’t have shell access to the server where I host it so I could not…