Misconfigured T-Beam 868

Support
1

Hi, long story short, I started with a EU433 setup, T-Echo and a T-Beam both working fine. I however realised I should have gone EU868.

I purchased a T-Beam 868 and in the process of setting it up selected the wrong frequency on initial setup, selecting EU433! Rebooted and worked fine, then I noticed it discovered my 2 other original 433 devices!

Realising my error I corrected the T-Beam 868 to EU868 and it no longer sees the other devices as expected.

My question is how and why did the 868 device see the 433 , and vica versa? The new T-Beam859 and my T-Echo 433 were standing next to each other.

Any ideas?

2

It can be set to EU433, but it will just perform very poor. The hardware is tuned for around 868MHz, so you will not get a lot of range, but they can work when standing next to each other.

3

Yup, that answers that then.

I was surprised that it could be tuned to that frequency, I would have thought it would have been locked to a certain frequency range.