Random miniLOG Update #2

Yes, I finally got my prototype PCBs. As I mentioned, they were provided by electronics-lab.com. You can see an entry about my project on their website here

The PCBs were made by Seeed Studio. They are 1mm thick and look quite nice.

This is what the assembled prototype looks like:

I'm currently testing all the hardware on the board. So far I got the MCU running, managed to talk to the 74HC595. Also the DC-DC converter works quite well, so does the voltage reference.

The board currently uses way too much power, that's why I need to consider underclocking the microcontroller to 4MHz.

I still need to get the ADC and SD card working, I haven't had much luck with that so far.

I already have a few ideas on changes I want to make on the board, a blog post about them coming up soon.

Random miniLOG Update #1

It's been a while since the last post. I just wanted to mention some of the news.

First of all, miniLOG has a new PCB design. It grew from the initial 50x50mm size to 50x80mm. The SD card is now on top, which should add to the usability.

Next, I should have the first prototype in about a month. The REV.2 PCB is basically finished and I'm going to cooperate with electronics-lab.com. They will provide me with 5 PCBs in exchange for publishing my project on their website. Frankly, it's a double benefit.

Now, I am on an INCREDIBLY tight budget. I will probably have to rely on something like a predorder on Tindie. I'm not really sure how much succes others had with those preorders, but I am willing to give it a try.

As soon as I build the prototype I will give you a closer look on the mechanical side of things. Peace.