I've just ordered several Moteino R6s (https://lowpowerlab.com/shop/product/99). I want to make a testbed for them. What are the dimensions of the PCB and the hole spacing dimensions?
See this page (https://lowpowerlab.com/guide/moteino/design-files/) and this repository (https://github.com/LowPowerLab/Moteino/tree/master/R4) where you will find Eagle files - the dimensions and headers are in the same exact locations.
The holes on the headers are 0.1" spaced from each other.
There are 800mils between top and bottom header rows.
Thanks, Felix,
The two dimensions you give are helpful. I've also looked the Eagle images on the links you gave me (I don't have the Eagle software installed).
It appears that, like the standard Arduino Pro Mini boards, the six FTDI holes are not exactly on the 0.1" grid relative to the top and bottom header rows.
Quote from: DonpK on August 15, 2017, 11:11:31 AM
It appears that, like the standard Arduino Pro Mini boards, the six FTDI holes are not exactly on the 0.1" grid relative to the top and bottom header rows.
Correct, they are not. They are in the center between the two side headers. The FTDI header would not be used on a breadboard anyway (only the side headers).
The board was made as narrow as possible while still allowing the radios to mount on the bottom. And I like symmetry, hence the resulting dimensions and locations of the headers.
Thanks for the dimensions. I used them to make a solderless breadboard for the Moteino. I've uploaded some pictures to show the result. It's handy for prototyping projects without have to solder and unsolder connections to the Moteino itself.
Quote from: DonpK on August 26, 2017, 03:39:29 PM
Thanks for the dimensions. I used them to make a solderless breadboard for the Moteino. I've uploaded some pictures to show the result. It's handy for prototyping projects without have to solder and unsolder connections to the Moteino itself.
Clever!
Don,
Very nice setup and attention to detail 8)
Just make sure the breadboards are good quality, for certain applications flaky connections in the breadboard can really throw things off.
Here are a couple of construction details:
Most of the spring-loaded test pins, ("pogo pins") are fairly long. For this application I was able to find some short pins, available here (https://smile.amazon.com/gp/product/B00K8MLKH2/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1). These pins are inserted into the solderless breadboard through two layers of bare, 0.1" phenolic prototype board to provide some support. I cut apart the two sections of the breadboard, which are normally spaced 0.3", and moved them to 0.8" to accommodate the Modeino.