using flow control in a xbee sensor network

Wireless communications in Waspmote, topologies, node types...
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Joined: Tue Nov 27, 2018 10:47 am
Company: Università di Torino

using flow control in a xbee sensor network

Post by DenHviteGuden » Tue Nov 27, 2018 12:04 pm

I have a sensor network which consist of two xbee s2 connected as a coordinator that receive packets from a node that transmit data read from a sensor. The network is based on Arduino and the Xbees are in API 2 mode. Since i want to pause the communication when the coordinator run a routine who take 60s to complete (and i dont want to loose packets), i tried to use the RTS pin on coordinator. What happens is:
1) i assert RTS on the coordinator, and it doesnt send anything over serial
2) after sending some packets, node stop to send data.

So my questions are:
1) Does the node stop trasmitting because of receiving ACK failure?
2) Why there are packets being transmitted from the node with RTS asserted? Is this because it takes some time for the node to see RTS asserted?
3) During the assertion of RTS, packets are stored in RF RX buffer or Serial transmit buffer?

Thank you

Posts: 27967
Joined: Mon Sep 28, 2009 1:06 pm

Re: using flow control in a xbee sensor network

Post by libelium-dev » Thu Nov 29, 2018 3:18 pm


We are sorry but we don't have experiences using the flow controls pins of XBee modules. Maybe you can find more information in the Digi Forum.

Apologies for the inconvenience.

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