Dear Sir/Madam,
I use the MDEK dev kit in my office. it works perfectly fine and the data is very reliable. However, when i test it outside which is a little bit hot (around 30 degree Celsius), then the dev kit doesn’t work anymore. By using phone to try scanning it with bluetooth, the module itself sometimes can be discovered and sometime cannot. The test range is around 5meters * 5meters.
I would like to know what problem is that. Is it the crystal problem or some other problem.
We would really want to use the dev kit to make a demonstration to our customer outdoor.