Hi
I have two Moteino.
One Moteion has A piezo disk, on pin A5 and GND.
There is A resistor on pin A5, as A pull down to GND.
Pin 9, blinks the led when the piezo is moving.
The other Moteion, pin 9 allso shows when the piezo is moving.
Pin 6 there is A buzzer. (+Pin 6 and - to GND).
It all works great.......(piezo disk,Moteino's,and buzzer)
What I need some help with, is with getting all the ACK working right,
on the (buzzer side of the (RX).
I am new at all of this, but I want to learn some new things.
I will post the Arduino sketches.
piezo disk
#include <RFM69.h>
#include <SPI.h>
#define NODEID 99
#define NETWORKID 100
#define GATEWAYID 1
#define FREQUENCY RF69_915MHZ //Match this with the version of your Moteino! (others: RF69_433MHZ, RF69_868MHZ)
#define KEY "thisIsEncryptKey" //has to be same 16 characters/bytes on all nodes, not more not less!
#define SERIAL_BAUD 115200
#define ACK_TIME 30 // # of ms to wait for an ack
int TRANSMITPERIOD = 200; //transmit a packet to gateway so often (in ms)
byte sendSize=0;
boolean requestACK = false;
RFM69 radio;
int counter = 0 ;
int counter1 = 0 ;
// analog pin used to connect the potentiometer
int potpin0 = 0;
int potpin1 = 0;
const int ledPin = 9;
int inputPin = A5;
int maxnum = 200;
int time = 50;
int sensorValue;
//int counter = 0;
int count = 0;
byte state;
byte realtime;
const int numReadings = 10;
int readings[numReadings];
int index = 0;
int total = 0;
int average = 0;
typedef struct
{
int Pot_0,Pot_1; //store this potentiometer 0
}
Payload;
Payload theData;
void setup()
{
Serial.begin(SERIAL_BAUD);
radio.initialize(FREQUENCY,NODEID,NETWORKID);
radio.setHighPower(); //uncomment only for RFM69HW!
radio.encrypt(KEY);
char buff[50];
sprintf(buff, "\nTransmitting at %d Mhz...", FREQUENCY==RF69_433MHZ ? 433 : FREQUENCY==RF69_868MHZ ? 868 : 915);
Serial.println(buff);
for (int thisReading = 0; thisReading < numReadings; thisReading++)
readings[thisReading] = 0;
pinMode(ledPin, OUTPUT);
}
long lastPeriod = -1;
void loop()
{
//process any serial input
if (Serial.available() > 0)
{
char input = Serial.read();
if (input >= 48 && input <= 57) //[0,9]
{
TRANSMITPERIOD = 100 * (input-48);
if (TRANSMITPERIOD == 0) TRANSMITPERIOD = 1000;
Serial.print("\nChanging delay to ");
Serial.print(TRANSMITPERIOD);
Serial.println("ms\n");
}
}
//check for any received packets
if (radio.receiveDone())
{
Serial.print('['); Serial.print(radio.SENDERID, DEC); Serial.print("] ");
for (byte i = 0; i < radio.DATALEN; i++)
Serial.print((char)radio.DATA[i]);
Serial.print(" [RX_RSSI:");Serial.print(radio.readRSSI());Serial.print("]");
if (radio.ACK_REQUESTED)
{
radio.sendACK();
Serial.print(" - ACK sent");
delay(10);
}
// Serial.println();
}
int currPeriod = millis()/TRANSMITPERIOD;
if (currPeriod != lastPeriod)
{
//fill in the struct with new values
theData.Pot_0 = realtime;
theData.Pot_1 = state;
Serial.print("Sending struct (");
Serial.print(sizeof(theData));
Serial.print(" bytes) ... ");
if (radio.sendWithRetry(GATEWAYID, (const void*)(&theData), sizeof(theData)))
Serial.print(" ok!");
else Serial.print(" nothing...");
Serial.println();
lastPeriod=currPeriod;
//Serial.print("Input ON Pin 5: ");
// Serial.println(sensorValue);
//Serial.print("Led State: ");
Serial.print(" Piezo Sensor ");
Serial.println(realtime);
Serial.print(" Beeps ");
Serial.println(state);
//Serial.print("Counter: ");
//Serial.println(counter);
// Serial.print("Led State: ");
// Serial.println(realtime);
total= total - readings[index];
readings[index] = analogRead(inputPin);
total= total + readings[index];
index = index + 1;
if (index >= numReadings)
index = 0;
average = total / numReadings;
// Serial.println(average);
// delay(1);
sensorValue = average;
if (state == 0)
{
counter++;
}
if (sensorValue > 0) {
// turn LED on:
digitalWrite(ledPin, HIGH);
realtime = 1;
counter = 0;
}
else {
// turn LED off:
digitalWrite(ledPin, LOW);
realtime = 0;
delay(1);
}
if (counter > maxnum)
{
if (count < time) {
// trun LED on
state = !state;
delay(10);
count++;
}
}
else {
// turn LED off:
state = 0;
delay(1);
}
}
}
buzzer
#include <RFM69.h>
#include <SPI.h>
#define NODEID 1
#define NETWORKID 100
#define FREQUENCY RF69_915MHZ //Match this with the version of your Moteino! (others: RF69_433MHZ, RF69_868MHZ)
#define KEY "thisIsEncryptKey" //has to be same 16 characters/bytes on all nodes, not more not less!
#define SERIAL_BAUD 115200
#define ACK_TIME 30 // # of ms to wait for an ack
RFM69 radio;
const int realtime = 9;
const int ledPin = 6;
bool promiscuousMode = false; //set to 'true' to sniff all packets on the same network
// Setup Servo Objects
//Servo Servo1;
// variable to read the value from the potentiometer analog pin
int val0 = 0;
int val1 = 0;
typedef struct
{
int Pot_0,Pot_1; //recall this potentiometer 0 value
}
Payload;
Payload theData;
void setup()
{
// Attach Servo Objects to respective PWM pins
// Servo1.attach(5);
Serial.begin(SERIAL_BAUD);
delay(10);
radio.initialize(FREQUENCY,NODEID,NETWORKID);
radio.setHighPower(); //uncomment only for RFM69HW!
radio.encrypt(KEY);
radio.promiscuous(promiscuousMode);
char buff[50];
sprintf(buff, "\nListening at %d Mhz...", FREQUENCY==RF69_433MHZ ? 433 : FREQUENCY==RF69_868MHZ ? 868 : 915);
Serial.println(buff);
pinMode (realtime, OUTPUT);
pinMode (ledPin, OUTPUT);
}
byte ackCount=0;
void loop() {
//process any serial input
if (Serial.available() > 0) {
char input = Serial.read();
}
if (radio.receiveDone())
{
Serial.print('[');
Serial.print(radio.SENDERID, DEC);
Serial.print("] ");
Serial.print(" [RX_RSSI:");
Serial.print(radio.readRSSI());
Serial.println("]");
if (promiscuousMode)
{
Serial.print("to [");
Serial.print(radio.TARGETID, DEC);
Serial.print("] ");
}
if (radio.DATALEN != sizeof(Payload))
Serial.print("Invalid payload received, not matching Payload struct!");
else
{
theData = *(Payload*)radio.DATA; //assume radio.DATA actually contains our struct and not something else
if (radio.ACK_REQUESTED) {
byte theNodeID = radio.SENDERID;
radio.sendACK();
Serial.println(" - ACK sent.");
// When a node requests an ACK, respond to the ACK
// and also send a packet requesting an ACK (every 3rd one only)
// This way both TX/RX NODE functions are tested on 1 end at the GATEWAY
if (ackCount++%1==0)
// Output to Serial Monitor
Serial.println();
Serial.print(" Pinging node ");
Serial.print(theNodeID);
Serial.print(" - ACK...");
delay(3); //need this when sending right after reception .. ?
if (radio.sendWithRetry(theNodeID, "ACK TEST", 8, 0)) // 0 = only 1 attempt, no retries
Serial.println("ok!");
else Serial.print("nothing");
}
}
// Adjust RF data for Servo Output
val0 = theData.Pot_0; // Translate RF into Servo Degrees
val1 = theData.Pot_1; // Translate RF into Servo Degrees
Serial.print(" Piezo Sensor ");
Serial.println(val0);
Serial.print(" Beeps ");
Serial.println(val1);
if (theData.Pot_0 == HIGH) {
// turn LED on:
digitalWrite(realtime, HIGH);
}
else {
// turn LED off:
digitalWrite(realtime, LOW);
}
if (theData.Pot_1 == HIGH) {
//turn LED on:
digitalWrite(ledPin, HIGH);
}
else {
// turn LED off:
digitalWrite(ledPin, LOW);
// delay(1);
}
}
}
JimJim,
Without really digging into the code, you might want to increase the ACK time to around 30-40ms when you send longer packets.
Also a very common pitfall is not calling radio.receiveDone() often enough. Some people go do other things for a few hundred ms and then when they finally check the radio again it's too late, and (even if a packet is still in the buffer) a remote node is done waiting for the ACK it requested.
Hope this helps.