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[RC232] Can you support low qaulity (not HiFi) audio with RC232 over 868 MHz

Theoretically yes… you may compress and code the audio signal to 10-20 kbps and do a time duplex protocol to get two-way audio link. But it’s not a killer application for us, the modules are not really targeting data streaming as in audio/voice.

Last Update: September 14, 2017

September 14, 2017 1754 RC232 Q&A

Related Knowledge Base Posts -

[RC232] Each slave boat will have a bit rate of 1Kbps to the master node, the signal range must be till 2km (line of sight). We are considering using RC17xxHP-RC232 modules to communicate with master boat and slaves. It’s possible with this device to create a multipoint network (one master, many slaves)?
[RC232] When the MAC layer has a packet to send, it will use a carrier-sense-multiple-access (CSMA) protocol to determine if another module is already transmitting. If another module is transmitting, the module will receive that data before attempting to transmit its data again. If, during this process, the UART receive buffer gets full, the CTS line will go high to prevent the host UART from over-running the receive buffer. The CSMA mechanism introduces a variable delay to the transmission channel. This delay is the sum of a random period and a weighted period that is dependent on the number of times that the module has tried and failed to acquire the channel. For applications that guarantee that only one module will be transmitting at any given time, the CSMA mechanism can be turned off to avoid this delay.
[RC232] “We enable the RTS/CTS option in the DK and we send message longer than 128 bytes (the max buffer size) so we need the CTS to separated the massage. We test this with scope: 1. In the CTS we didn’t see change (I suppose all 128 bytes it needs to change) 2. Also in the Tx/Rx I suppose to see a break in the 128 bytes, but it takes all the massage 3. When I try connect this module to PC, only message shorter than 1024 bytes success to send “

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