onReceive(LoRa.parsePacket()) causes 3x4 keypad column 3 to think its column 1 #430
Description
Hi Sandeep,
Thanks alot for this, its appreciated. I've tried everything but can't get it to work! You are my last resort!!
I have two Arduino UNO R3's talking to each other via two LoRa's (duinotech, SX1276, IC sensor, model XC-4392) at a range of 70 cm. Each LoRa shield just plugs onto the top of each UNO. I'm supplying both UNO's with 12v. The sender UNO has a simple membrane 3x4 keypad. It also has a i2C 16x2 LCD.
When I comment out onReceive(LoRa.parsePacket()) the keypad is fully functional. But when I remove the comment, column 3 thinks its column 1?
I've tried using different:
- UNO's
- LoRa shields
- DIO pins
- Tx power levels
- SPI frequencies
- keypads
#include <Keypad.h>
#include <SPI.h>
#include <LoRa.h>
#include <Wire.h>
const byte ROWS = 4;
const byte COLS = 3;
char hexaKeys[ROWS][COLS] = {
{'1', '2', '3'},
{'4', '5', '6'},
{'7', '8', '9'},
{'*', '0', '#'}
};
byte rowPins[ROWS] = {8, 7, 6, 5};
byte colPins[COLS] = {4, 3, 2};
byte localAddress = 0xBB;
byte destination = 0xFF;
String incoming = "";
String outgoing;
Keypad customKeypad = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);
void setup() {
Serial.begin(9600);
while (!Serial);
LoRa.setSPIFrequency(8E6);
if (!LoRa.begin(915E6)) {
Serial.println("Starting LoRa failed!");
while (1);
}
Serial.println("LoRa init succeeded.");
Serial.println();
LoRa.setSyncWord(0x34);
LoRa.setTxPower(20);
LoRa.setSpreadingFactor(7);
LoRa.setSignalBandwidth(125E3);
LoRa.setCodingRate4(5);
LoRa.receive();
}
void loop() {
char customKey = customKeypad.getKey();
if (customKey){
outgoing = customKey;
Serial.println(customKey);
LoRa.beginPacket();
LoRa.write(destination);
LoRa.write(localAddress);
LoRa.write(outgoing.length());
LoRa.print(customKey);
LoRa.endPacket();
LoRa.receive();
}
onReceive(LoRa.parsePacket());
}
void onReceive(int packetSize) {
}