I think it was incorrect copy paste, but I think description here is incorrect. Particularly chapter Fixed transmission “So first, we must set M0 to LOW and M1 pin to HIGH to enter on program/sleep mode and set the correct address and fixed transmission flag.” Based on documentation it should be M0 + M1 on HIGH.
As you suggested I have updated wiring for module programming. Everything was working, but afterwards I have started playing with RSSI. From response container I was just able to print out RSSI value, but not anymore rc.data (always blank).
Due to that I have started playing with modules and it seems I have somehow f*cked it up.
So I have started from scratch (transparent transmission config upload, transparent transmission example, M0 + M1 on LOW, AUX connected).
Code example
#include "Arduino.h"
#include "EByte_LoRa_E220_library.h"
#define FREQUENCY_868 <- with our without
// ---------- esp32 pins --------------
LoRa_E220 e220ttl(&Serial2, 25, UART_BPS_RATE_9600); // RX AUX M0 M1
void setup() {
Serial.begin(9600);
delay(5000);
Serial.println("Hi, I'm going to send message!");
// Startup all pins and UART
e220ttl.begin();
// Send message
ResponseStatus rs = e220ttl.sendMessage("Hello, world?");
// Check If there is some problem of successfully send
Serial.println(rs.getResponseDescription());
}
void loop() {
// If something available
if (e220ttl.available()>1) {
// read the String message
ResponseContainer rc = e220ttl.receiveMessage();
// Is something goes wrong print error
if (rc.status.code!=1){
rc.status.getResponseDescription();
}else{
// Print the data received
Serial.println(rc.data);
}
}
if (Serial.available()) {
String input = Serial.readString();
ResponseStatus rs = e220ttl.sendMessage(input);
Serial.println("Response :" + rs.getResponseDescription());
}
}
It is running on identical ESPs with identical wiring.
I’m just curious regarding one thing. As M0 + M1 is on LOW, I assume I can not get correct configuration, right?
I’m asking due to
HEAD : 2 E5 DA
AddH : EB
AddL : D2
Chan : 0 -> 862MHz
Hi Matejet,
yes, It’s correct; if you don’t connect all the pins (M0 and M1 in particular), you can’t switch to a different mode.
So, you can do a single operation with a single configuration of M0 and M1.
Bye Renzo
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