On 2020/1/2, we made a distance test for Maduino Lora. There too much blocks in the city, so we go to the seaside after our work, to get a relative wide& open area:

The Lora sender: we use a Maduino Lora board connected to a DHL11 sensor as the Lora Sensor, to send the temperature& humidity info:

The receiver:

And took them to the opposite direction by Charlin and Lan:

In this testing, when there the distance is 3.8Km, the signal stable:

As it is really late and dark, and the seashore ends, we have no way to go further to test the mass range, so we have to ends our testing today...