The comments to my last blog post got me thinking if I had chosen the right RFM channel at home, obviously if the channel is noisy that directly affects reception and increases the error rates. I use the default 868Mhz setting…
I had some space left on the TinySensor v1.0 PCB, plus I left myself few days to think before ordering the first batch, so I decided to throw in a SD card port. I didn’t want it to be anything…
Following the fiasco with the first version of the PCB, I have decided to create a single sided PCB so that the DIP socket that was causing me trouble is on the top. Here are the results, the PCB works…
Apart from the pathetic etching job on the PCB I described yesterday, I found out this morning that I also managed to etch the kitchen sink and made wife unhappy. It have been warned not to pour ferric tri-chloride in…
As I mentioned in my other post, I wanted to re-do the temperature sensor, this time on my own PCB. Driven by the hunger for instant gratification, I have overcome my fear of home-made PCBs using toner transfer and ferric…