Computing stuff tied to the physical world

Meet the JeeNode Micro v3

In AVR, Hardware on Mar 2, 2013 at 00:01

There’s a new kid in town, the JeeNode Micro v3 with ATtiny84 + optional boost converter:


(Can you spot the differences? That’s without and with buck/boost converter…)

It’s even shorter than the v2, and has all the components on one side again:


The main reason for the reduced size is the reduced number of header pins. One of the biggest changes in that regard, is that v3 no longer has a full 2×3 ISP header – just the 4 data pins. The idea is that GND and +3V can be connected to the 8-pin “port+” header.

As it so happens, there’s a fifth pad on the bottom side of the PCB which connects to GND. This can be put to good use for experimentation, by connecting some headers as follows:


Note that the 6th pin was removed from the female header – this is very easy to do: just pull on the pin from the bottom with some pliers and it’ll slide out.

That leaves just power to be connected up for SPI programming. More details tomorrow…