Intro It is quite clear that my smart home project is going quite slow and erratic. Following the other assembly, I made another batch of 5 sensor nodes. These are meant to use the new soil sensors, once they arrive. Since plants will be both outside and inside and we are talking about rain and water, the sensors will go into waterproof boxes, with the soil sensor connected via a cable. So, this assembly is due… Continue reading
Intro My old Ikea GRÖNÖ lamp was long due for an upgrade to LED, but I wanted to use a strip not just buy a bulb. That is because I wanted the light controllable through my 1000² home automation system. Now, the cool thing about building my own dimmers is that I could dim the light down to very low duty factors, which is pretty good considering the way human eye responds to light levels. As a… Continue reading
Intro My cheap plug in hot glue gun died and looking for a replacement I found this: the Bosch GluePen What does it do? it’s a hot glue gun for 7 mm glue sticks that warms up in 15 seconds. Charges via micro USB. Much better than my old one that needed ~5 minutes to warm up for probably half a minute of gluing. I am very happy because of the fast warm up, wireless operation… Continue reading
My experiences and recommendations for cheap electronic modules from China. Continue reading
Got a device that needs periodic rebooting? Try this! Continue reading
Simple way to display the data on a serial port on a small display, makes for a portable monitor. Continue reading
A simple way to measure low and high current at the same time with small burden voltage without using expensive hardware. Continue reading