I have in mind buying 4 Whisper Nodes in order to build a data-acquisition system. The goal is to use 3 nodes (which receive data from sensors) and let those 3 units communicate to one central unit (receiver) over a distance of 50 m (160 ft.). Is it possible to use 1 Whisper node as a central unit (which receives data from the 3 other other nodes)? What type of configuration is most suitable for this project?

Thank you in advance!

Hi Roggi,

sure you can do that. You can simply connect one of the Whisper Node to a computer, an RPI or even an ESP32 for example and write a simple program to communicate via serial between the boards.

For example, all messages received by the "base" Whisper Node can be printed on the Serial while the other boards, which is connected to the Internet, can read those messages and forward via HTTP, MQTT, etc, to an application or database.

Here a post from a Whisper Node user doing something similar utilizing a ESP8266: https://www.thomaslang.nl/talk2-whisper ... tion-code/