How to start with RXTX flow

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1. Test purpose

Received Signal Strength Indicator (RSSI) is a measurement of the power present in a received radio signal.

The RXTX test allow user to establish a communication between emitter and receiver and to measure & display dynamically RRSI on a chart.

2. Explaining the dashboard

The RXTX dashboard is divided in two groups.

First group for TX transmission that allow user to choose the RF frequency and the power level of emission (beetween -9 to 22 dBM). User should start and stop emission.

Second group for RX reception that allow user to choose the RF frequency. In this group is displayed RSSI and chart that is refreshed each 250 ms. User shoud start and stop reception.

3. Explaining the flow

3.1. TX flow

3.2. RX flow

4. AT commands for PER estimation

AT commands listed below are sent to emitter and receiver

4.1. Emitter :

ATZ Reset

AT+TCONF[=freq:pow:bw:sf:cr:lna:pa][=868000000:14:4:12:4/5:0:0:1:16:25000:2:3] for example. Sets the config LoRa RF test.

AT+TTONE

AT+TOFF

4.2. Receiver:

AT+Z Reset

AT+TCONF[=freq:pow:bw:sf:cr:lna:pa][=868000000:14:4:12:4/5:0:0:1:16:25000:2:3] for example. Sets the config LoRa RF test.

AT+TRRSI

AT+TOFF