Hello friends....
I'm working on a project and am stuck right at the end. The idea behind the project is that of having a load cell attached to an Adafruit Feather M0 RFM69HCW Packet Radio sending a packet to another Adafruit Feather M0 RFM69HCW Packet Radio attached to an led. When a weight between 5g-8g grams is placed on the scale the LED will flash. When a weight that is between 13g and 15g is placed on the scale the LED will stay solid.
My code seems to be working with the initial 5g - 8g but doesn't work with the heavier weight. I'm stuck and would love some help
Here is My sending unit code
#include <SPI.h>
#include <RH_RF69.h>
#include <HX711_ADC.h>
#include <Wire.h>
HX711_ADC scale (11,12); // 6 is green 7 is orange
/************ Radio Setup ***************/
/************ Radio Setup ***************/
// Change to 434.0 or other frequency, must match RX's freq!
#define RF69_FREQ 915.0
#if defined(ADAFRUIT_FEATHER_M0) || defined(ADAFRUIT_FEATHER_M0_EXPRESS) || defined(ARDUINO_SAMD_FEATHER_M0) // Feather M0 w/Radio
#define RFM69_CS 8
#define RFM69_INT 3
#define RFM69_RST 4
#define LED 13
#endif
// Singleton instance of the radio driver
RH_RF69 rf69(RFM69_CS, RFM69_INT);
int16_t packetnum = 0; // packet counter, we increment per xmission
void setup() {
Serial.begin(9600);
scale.begin();
scale.start(2000);
scale.setCalFactor(1000.0);
pinMode(LED, OUTPUT);
pinMode(RFM69_RST, OUTPUT);
digitalWrite(RFM69_RST, LOW);
Serial.println("Feather RFM69 TX Test!");
Serial.println();
// manual reset
digitalWrite(RFM69_RST, HIGH);
delay(10);
digitalWrite(RFM69_RST, LOW);
delay(10);
if (!rf69.init()) {
Serial.println("RFM69 radio init failed");
while (1);
}
Serial.println("RFM69 radio init OK!");
// Defaults after init are 434.0MHz, modulation GFSK_Rb250Fd250, +13dbM (for low power module)
// No encryption
if (!rf69.setFrequency(RF69_FREQ)) {
Serial.println("setFrequency failed");
}
rf69.setTxPower(20, true); // range from 14-20 for power, 2nd arg must be true for 69HCW
// The encryption key has to be the same as the one in the server
uint8_t key[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
rf69.setEncryptionKey(key);
Serial.print("RFM69 radio @"); Serial.print((int)RF69_FREQ); Serial.println(" MHz");
}
void loop() {
scale.update(); // retrieves data from the load cell
float i = scale.getData(); // get output value
Serial.print(scale.getData(), 1);
Serial.println("measurement");
delay(200);
if (i >= 5 && i <= 8) { // Blue is Blinking
char radiopacket[20] = "BLUE";
itoa(packetnum++, radiopacket+13, 10);
Serial.print("Sending "); Serial.println(radiopacket);
// Send a message!
rf69.send((uint8_t *)radiopacket, strlen(radiopacket));
rf69.waitPacketSent();
}
if (i >= 13 && i <= 15) { //Red is solid
char radiopacket[20] = "RED";
itoa(packetnum++, radiopacket+13, 10);
Serial.print("Sending "); Serial.println(radiopacket);
// Send a message!
rf69.send((uint8_t *)radiopacket, strlen(radiopacket));
rf69.waitPacketSent();
// Now wait for a reply
uint8_t buf[RH_RF69_MAX_MESSAGE_LEN];
uint8_t len = sizeof(buf);
if (rf69.waitAvailableTimeout(500)) {
// Should be a reply message for us now
if (rf69.recv(buf, &len)) {
Serial.print("Got a reply: ");
Serial.println((char*)buf);
} else {
Serial.println("Receive failed");
}
} else {
Serial.println("No reply, is another RFM69 listening?");
}
}
}
Here is my receiving code
// rf69 demo tx rx.pde
// -*- mode: C++ -*-
// Example sketch showing how to create a simple messaging client
// with the RH_RF69 class. RH_RF69 class does not provide for addressing
// or reliability, so you should only use RH_RF69 if you do not need the
// higher level messaging abilities.
// It is designed to work with the other example RadioHead69_RawDemo_TX.
// Demonstrates the use of AES encryption, setting the frequency and
// modem configuration.
#include <SPI.h>
#include <RH_RF69.h>
/************ Radio Setup ***************/
// Change to 434.0 or other frequency, must match RX's freq!
#define RF69_FREQ 915.0
#if defined(ADAFRUIT_FEATHER_M0) || defined(ADAFRUIT_FEATHER_M0_EXPRESS) || defined(ARDUINO_SAMD_FEATHER_M0) // Feather M0 w/Radio
#define RFM69_CS 8
#define RFM69_INT 3
#define RFM69_RST 4
#define LED 13
#define LEDPIN 11
#endif
/* Teensy 3.x w/wing
#define RFM69_CS 10 // "B"
#define RFM69_INT 4 // "C"
#define RFM69_RST 9 // "A"
#define RFM69_IRQN digitalPinToInterrupt(RFM69_INT)
*/
/* WICED Feather w/wing
#define RFM69_CS PB4 // "B"
#define RFM69_INT PA15 // "C"
#define RFM69_RST PA4 // "A"
#define RFM69_IRQN RFM69_INT
*/
// Singleton instance of the radio driver
RH_RF69 rf69(RFM69_CS, RFM69_INT);
void setup() {
Serial.begin(9600);
//while (!Serial) delay(1); // Wait for Serial Console (comment out line if no computer)
pinMode(LED, OUTPUT);
pinMode(LEDPIN, OUTPUT);
pinMode(RFM69_RST, OUTPUT);
digitalWrite(RFM69_RST, LOW);
Serial.println("Feather RFM69 RX Test!");
Serial.println();
// manual reset
digitalWrite(RFM69_RST, HIGH);
delay(10);
digitalWrite(RFM69_RST, LOW);
delay(10);
if (!rf69.init()) {
Serial.println("RFM69 radio init failed");
while (1);
}
Serial.println("RFM69 radio init OK!");
// Defaults after init are 434.0MHz, modulation GFSK_Rb250Fd250, +13dbM (for low power module)
// No encryption
if (!rf69.setFrequency(RF69_FREQ)) {
Serial.println("setFrequency failed");
}
// If you are using a high power RF69 eg RFM69HW, you *must* set a Tx power with the
// ishighpowermodule flag set like this:
rf69.setTxPower(20, true); // range from 14-20 for power, 2nd arg must be true for 69HCW
// The encryption key has to be the same as the one in the server
uint8_t key[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
rf69.setEncryptionKey(key);
Serial.print("RFM69 radio @"); Serial.print((int)RF69_FREQ); Serial.println(" MHz");
}
void loop() {
if (rf69.available()) {
// Should be a message for us now
uint8_t buf[RH_RF69_MAX_MESSAGE_LEN];
uint8_t len = sizeof(buf);
if (rf69.recv(buf, &len)) {
if (!len) return;
buf[len] = 0;
Serial.print("Received [");
Serial.print(len);
Serial.print("]: ");
Serial.println((char*)buf);
Serial.print("RSSI: ");
Serial.println(rf69.lastRssi(), DEC);
if (strstr((char *)buf, "BLUE")) {
// Send a reply!
uint8_t data[] = "Blue back to you";
rf69.send(data, sizeof(data));
rf69.waitPacketSent();
Serial.println("Sent a reply");
digitalWrite (LEDPIN, HIGH);
delay (1000);
digitalWrite (LEDPIN, LOW);
}
if (strstr((char *)buf, "RED")) {
// Send a reply!
uint8_t data[] = "Red Back To You";
rf69.send(data, sizeof(data));
rf69.waitPacketSent();
Serial.println("Sent a reply");
digitalWrite (LEDPIN, HIGH);
}
} else {
Serial.println("Receive failed");
}
}
}
void Blink(byte pin, byte delay_ms, byte loops) {
while (loops--) {
digitalWrite(pin, HIGH);
delay(delay_ms);
digitalWrite(pin, LOW);
delay(delay_ms);
}
}