openmesh on simblee range problems

RE: openmesh on simblee range problems

Thomas Olson — Wed, 17 May 2017 20:30:33 GMT

Agh, nRF51822. Can't edit my own posts.

RE: openmesh on simblee range problems

Thomas Olson — Wed, 17 May 2017 20:28:22 GMT

Pete is correct RF DIgital uses pin 31 to shunt the antenna so you only get effetively Near Field Performance. The Simblee does use the 3rd generation nRF51288 whereas the RFduino uses the limited early generation 1. And they insist on keeping their firmware proprietary. So if you blow it away and use the Nordic libraries you will have to take into account the pin 31 oddity. BTW, the Simblee includes both crystals and internal chip antenna.

RE: openmesh on simblee range problems

Turbo J — Fri, 28 Apr 2017 17:38:31 GMT

Those Simblee have no documantation about the actual chip they use - but it sure looks a lot like an NRF51x. But you may be wrong here, as they seem to use their own software.

If you have only 2 ft range - check your antenna setup. I can get about this far without having a working antenna at all. Measuring antenna performance at 2.4 GHz requires expensive equipment, unfortunately.

RE: openmesh on simblee range problems

Pete — Fri, 28 Apr 2017 17:30:01 GMT

Apparently pin 31 puts the simblee into a proximityMode. It must be cleared. I discovered this by looking at the SimbleCOM library source included with their arduino package.

RE: openmesh on simblee range problems

Pete — Fri, 28 Apr 2017 17:28:42 GMT

Yes, it is an nrf51 embedded in epoxy with a crystal and antenna. I've figured out what's going on and will post the answer.

RE: openmesh on simblee range problems

Daniel Wang — Fri, 28 Apr 2017 17:12:36 GMT

simblee? does that use a Nordic Semiconductor chip?