I have been working to upgrade the TinySensor v1.3 to a new version these days, that addresses the issues I had identified so far. I am keeping it in through-hole components for easy soldering and also so that one can easily…
Using a LDR (light dependent resistor) and DHT11 temp/humidity sensors
I got my hands on a LDR yesterday and figured that it will make a nice addition to a greenhouse monitoring project that will pick up light intensity, air temperature and humidity plus soil moisture and send that information to…
RFM12b to serial PCB for my Pi
[edit] This board is now available for sale in my store Here is a little project that I worked on last weekend: A small home-made PCB to permanently fit the RFM12b-to-Serial on my Raspberry Pi. Although I am aware of at…
Stamp sized ATtiny84 remote sensor
I have been amazed by the work done by @Tobias with his “Funky” sensor, so I asked him for a permission to make my own version. The Funky is a JeeNode micro clone, less the two Jeeports and probably in…
Using ATtiny 84’s internal temperature sensor
I have always wanted to test the internal temperature sensor that the ATtiny84 has. I think it is quite nice for a really low power node since no external hardware is required. I googled for some time and found a…
Power saving techniques for the Attiny84 powered TinySensor
I have been working hard to cut power consumption on the TinySensors so that they can run on the CR2032 battery that is on the back of the PCB. I have one of the sensors is sending room temperature for…