I am trying to make a simple communication (send a string) between the two modules cited in the topic title. However, unfortunately, I can't seem to make it work.
I am using two Arduino UNOs powered by a laptop USB. Both antennas are < 30cm apart and well suited for 915MHz. My connections are the same cited here:
circuit for both modules. However, i didn't have 4.7k resistors, so i used 10k resistors for pullup
When fetching the configuration (using the example code) of the 22D module (connecting M1 and M0 to 3.3) I get:
Success
1
----------------------------------------
HEAD : C1 0 8
AddH : 0
AddL : 3
Chan : 23 -> 433MHz
SpeedParityBit : 0 -> 8N1 (Default)
SpeedUARTDatte : 11 -> 9600bps (default)
SpeedAirDataRate : 10 -> 2.4kbps (default)
OptionSubPacketSett: 0 -> 200bytes (default)
OptionTranPower : 0 -> 22dBm (Default)
OptionRSSIAmbientNo: 0 -> Disabled (default)
TransModeWORPeriod : 11 -> 2000ms (default)
TransModeEnableLBT : 0 -> Disabled (default)
TransModeEnableRSSI: 0 -> Disabled (default)
TransModeFixedTrans: 0 -> Transparent transmission (default)
----------------------------------------
Success
1
----------------------------------------
HEAD: C1 8 3
Model no.: 20
Version : B
Features : 16
----------------------------------------
I get the same thing for the 30D module as well (only "Features" is different)
Once i put M1 and M0 on both modules to GND again (Normal mode), I try to use the example code "02_sendTransparentTransmission", but separating transmission and reception so that i can use one module for transmitting and the other for receiveing. One of them is just receiving with:
// If something available
if (e220ttl.available()>1) {
Serial.println("[*] Message received")
// read the String message
ResponseContainer rc = e220ttl.receiveMessage();
// Is something goes wrong print error
if (rc.status.code!=1){
Serial.println(rc.status.getResponseDescription());
}else{
// Print the data received
Serial.println(rc.status.getResponseDescription());
Serial.println(rc.data);
}
}
And the other is just transmitting with:
ResponseStatus rs = e220ttl.sendMessage("TEST TEST");
Serial.println(rs.getResponseDescription());
delay(500);
My problem is that I can't see the received messages on the receiver (It seems that e220ttl.available() is never > 1, because nothing gets printed on Serial). However, the transmitter side always return Success on rs.getResponseDescription();
I've been working on this for almost a week and tried so many things, but nothing works! Do you know what could be happening?
Thanks in advance.
zac
