Toying with ATTiny84 and SD card in Arduino IDE

As I mentioned in my previous post, I tossed in a SD card port for the TinySensor v1.1. I wanted to give it a live test and see if/how it works prior to submitting the PCB to the fab house. So I  did a breadboard setup as per TinySensor v1.1’s schematic (MCU+SD part only). Next, I decided…

The Tiny Sensor gets a SD card port

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 fancy like the impossible to solder SMT card slots, so I decided to go for…

Tiny Sensor plans

I have been working this weekend on improved version of the ATTiny84 remote sensor, this time I will use a PCB fab house to make at least 15 pcs of the PCB. The improvements over the old hand-made PCB are: CR2032 coin cell battery slot One Jeelabs compatible port for compatibility with Jeelab plugs. I…

Single sided ATtiny84 temperature sensor PCB

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 great and the temperature is being sent every 60 seconds using the DS18B20 sketch. Page…