@scalz Yes, I know I'm not inventing anything, everything that I propose already exist
the only, and MAJOR difference is the price : I'm following a design to cost process. What does it means : I take available hardware/schematics : NRF, Arduino (Sensebender, and other good board), ... and I try to redesign and make it as cheap as possible.
The nrf51822 is indeed the killer, BUT it's not working yet with MySensors
And I totally agree with you, if you work in HW and if you are not focused on the future (new chip, new protocols, new project, ...) then your project life expectancy is very little
I obviously won't lunch mass production, so I'm running the process with 400 boards batch. So far, only based on hypothesis, meaning its pure fiction, meaning there is a margin of error in my calculation. The more I will progess, the more the margin of error will be important, and the better I will fine tune the final price.
And I'm pretty sure that if we talk about bigger production batch, then the cost of a simple board could be as low as a couple of $
Look at the low cost airline company, they didn't invent anything, they just optimized everything to drive cost down, and now they are very successful company.
Look at the new Raspberry Zero (produced in EU) : given away for free with a magazine, and then sold for $5 !!
I give out those example to illustrate that innovation is not always the key to success and to illustrate that the cheaper you go, the wider spread it will be ! (no need to add : if the quality is here)
And just to be clear, I'm not doing this to earn money, because low cost, and small batch are usually not big money maker.
Now clearly, if you tell me you will manufacture your Mytinycamel, and sell it under $7-10 fully equipped (board + radio) then I'll reconsider the project. and don't worry, if I didn't want to be challenged on the project I won't be here talking about it !
"Too bad we didn"t met when I started my projects..." => It's maybe not too late !? If we are after the same goal, we can maybe add our skills ...