@neverdie said in Everything nRF52840:
Argh. Why, oh why, didn't TI make a launchpad with a PA on both the sub-1ghz and the 2.4ghz?
because it's a very new mcu, and they have some work in progress regarding PA paths. (from what I read). So I think they wanted to quickly provide a few usable&different launchpad designs for customers.
Like I said above (but it's in nrf52840 thread arghh), I designed my own shielded modules that I'll tune regarding an ideal gnd plane. I'll test a few antennas (still have a few favorites, but there are some nice chip antennas I would like to test too). And I'll also tune it regarding a sensor daughter board I made, and again check once it's enclosed too. Once that's done I'll provide some comparison, infos, with tuning results (smith charts, vswr etc), tips and help if I can for assembly or to get my modules (PM, or tindie etc, I have a reflow oven to help me, and at my job we're talking about pick&place in shortterm future, not for iot, but handy for extra projects) but 1st step 1st
Still for the moment, as some others new mcus (with erratas), it's not arduino.. but TI mcus are close as it's possible to use, with some limitations, Energia/Arduino project (and sketches are import-able to TI ide).
Our plan (another team member might be interested, he played with cc135x too) is to use MySensors lib (or a part). The main reason : MySensors API is compatible with lot of controllers.