Cheapest way to get started with Z-Wave development

[rowan.bradley]

What is the cheapest way of developing a Z-wave sensor, hopefully that doesn't require me to buy the Sigma development kit nor the expensive API licence, nor the expensive Keil compiler. Ideally I would like to base it on the Sigma ZM5101 chip rather than a board like the Z-Uno. It seems to me that a temperature sensor could be designed with very few components beyond the ZM5101, the DS18B20, and a 3V lithium cell. This could be very small, and have a decent battery life, if one didn't measure the temperature too often. Why do they insist on people using the Keil IDE? Surely it must be possible to convert the code so that it will build in a free tool chain?

Thanks - Rowan

[PoltoS]

We are working on mini Z-Uno. Do you need a lot?

[rowan.bradley]

Hi,
Who is "we"?
What is, or what will be, Mini-Z-Uno?
I currently have in mind to develop a minimum cost and minimum size z-wave temperature sensor, a minimum cost z-wave radiator valve, and maybe later a few other sensors and actuators mainly for energy control, and principally for installation in my own home.
Rowan

[rowan.bradley]

We are working on mini Z-Uno. Do you need a lot?

When will mini-z-uno be available?
Will it be 100% compatible with z-uno? I.e. can I develop a device using z-uno and later convert it to mini with no redevelopment needed?

Thanks - Rowan

[PoltoS]

We hope to get first samples in April.

100% compatible with the current Z-Uno (except for pinout footprint)

[rowan.bradley]

Thanks. How do I get one or two of these on order so I get them as soon as they are available?

Is there a spec sheet somewhere?

Thanks - Rowan