All,
I have been able to connect an UNO and NANO via NRF24L01. I have been able to use the EasyVR Shield. However, once I connect the two I am unable to get them to work together.
I believe it is because they both use the same SPI pins. Is there a way to make it work together? Would upgrading to a MEGA open up pins and allow them to work?
You have some code on the Uno that does something. You didn't post the code or say what it does.
You have some code on the Nano that does something. You didn't post the code or say what it does.
You connected some hardware to one of the Arduinos. You didn't say which one, or how you changed the code, or what it now does (or does not do).
I believe it is because they both use the same SPI pins.
SPI is a bus. A bus has lots of seats.
Is there a way to make it work together?
Possibly. It depends on what, exactly, does not work.
Would upgrading to a MEGA open up pins and allow them to work?
Having more unused pins isn't likely to help.
PaulS:
You have some code on the Uno that does something. You didn't post the code or say what it does.
I can connect the Uno to a NRF24L01
Code:
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
#define button 4
RF24 radio(7, 8); // CNS, CE
const byte address[6] = "00001";
boolean buttonState = 0;
void setup() {
pinMode(button, INPUT);
radio.begin();
radio.openWritingPipe(address);
radio.setPALevel(RF24_PA_MIN);
radio.stopListening();
}
void loop() {
buttonState = digitalRead(button);
radio.write(&buttonState, sizeof(buttonState));
delay(1000);
}
PaulS:
You have some code on the Nano that does something. You didn't post the code or say what it does.
I can connect the NANO to a NRF24L01.
Code:
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
#define led 4
RF24 radio(7, 8); // CNS, CE
const byte address[6] = "00001";
boolean buttonState =0;
void setup() {
Serial.begin(9600);
pinMode(4, OUTPUT);
radio.begin();
radio.openReadingPipe(0, address);
radio.setPALevel(RF24_PA_MIN);
radio.startListening();
}
void loop() {
if (radio.available()) {
radio.read(&buttonState, sizeof(buttonState));
if (buttonState == HIGH) {
digitalWrite(led, HIGH);
Serial.print("Button Worked");
}
else {
digitalWrite(led,LOW);
}
}
}
These work with the code above.
Portion of the EasyVR code. It would exceed the character limit on the forum.
#include "Arduino.h"
#if !defined(SERIAL_PORT_MONITOR)
#error "Arduino version not supported. Please update your IDE to the latest version."
#endif
#if defined(__SAMD21G18A__)
// Shield Jumper on HW (for Zero, use Programming Port)
#define port SERIAL_PORT_HARDWARE
#define pcSerial SERIAL_PORT_MONITOR
#elif defined(SERIAL_PORT_USBVIRTUAL)
// Shield Jumper on HW (for Leonardo and Due, use Native Port)
#define port SERIAL_PORT_HARDWARE
#define pcSerial SERIAL_PORT_USBVIRTUAL
#else
// Shield Jumper on SW (using pins 12/13 or 8/9 as RX/TX)
#include "SoftwareSerial.h"
SoftwareSerial port(12, 13);
#define pcSerial SERIAL_PORT_MONITOR
#endif
#include "EasyVR.h"
EasyVR easyvr(port);
//Groups and Commands
enum Groups
{
GROUP_0 = 0,
GROUP_1 = 1,
};
enum Group0
{
G0_JARVIS = 0,
};
enum Group1
{
G1_HOW_COOL_AM_I = 0,
G1_FLIGHT = 1,
G1_SHUTDOWN = 2,
G1_YOU_THERE = 3,
G1_REPULSERS = 4,
};
//Grammars and Words
enum Wordsets
{
SET_1 = -1,
SET_2 = -2,
SET_3 = -3,
};
enum Wordset1
{
S1_ACTION = 0,
S1_MOVE = 1,
S1_TURN = 2,
S1_RUN = 3,
S1_LOOK = 4,
S1_ATTACK = 5,
S1_STOP = 6,
S1_HELLO = 7,
};
enum Wordset2
{
S2_LEFT = 0,
S2_RIGHT = 1,
S2_UP = 2,
S2_DOWN = 3,
S2_FORWARD = 4,
S2_BACKWARD = 5,
};
enum Wordset3
{
S3_ZERO = 0,
S3_ONE = 1,
S3_TWO = 2,
S3_THREE = 3,
S3_FOUR = 4,
S3_FIVE = 5,
S3_SIX = 6,
S3_SEVEN = 7,
S3_EIGHT = 8,
S3_NINE = 9,
S3_TEN = 10,
};
// use negative group for wordsets
int8_t group, idx;
void setup()
{
// setup PC serial port
pcSerial.begin(9600);
bridge:
// bridge mode?
int mode = easyvr.bridgeRequested(pcSerial);
switch (mode)
{
case EasyVR::BRIDGE_NONE:
// setup EasyVR serial port
port.begin(9600);
// run normally
pcSerial.println(F("Bridge not requested, run normally"));
pcSerial.println(F("---"));
break;
case EasyVR::BRIDGE_NORMAL:
// setup EasyVR serial port (low speed)
port.begin(9600);
// soft-connect the two serial ports (PC and EasyVR)
easyvr.bridgeLoop(pcSerial);
// resume normally if aborted
pcSerial.println(F("Bridge connection aborted"));
pcSerial.println(F("---"));
break;
case EasyVR::BRIDGE_BOOT:
// setup EasyVR serial port (high speed)
port.begin(115200);
pcSerial.end();
pcSerial.begin(115200);
// soft-connect the two serial ports (PC and EasyVR)
easyvr.bridgeLoop(pcSerial);
// resume normally if aborted
pcSerial.println(F("Bridge connection aborted"));
pcSerial.println(F("---"));
break;
}
// initialize EasyVR
while (!easyvr.detect())
{
pcSerial.println(F("EasyVR not detected!"));
for (int i = 0; i < 10; ++i)
{
if (pcSerial.read() == '?')
goto bridge;
delay(100);
}
}
pcSerial.print(F("EasyVR detected, version "));
pcSerial.print(easyvr.getID());
if (easyvr.getID() < EasyVR::EASYVR3)
easyvr.setPinOutput(EasyVR::IO1, LOW); // Shield 2.0 LED off
if (easyvr.getID() < EasyVR::EASYVR)
pcSerial.print(F(" = VRbot module"));
else if (easyvr.getID() < EasyVR::EASYVR2)
pcSerial.print(F(" = EasyVR module"));
else if (easyvr.getID() < EasyVR::EASYVR3)
pcSerial.print(F(" = EasyVR 2 module"));
else
pcSerial.print(F(" = EasyVR 3 module"));
pcSerial.print(F(", FW Rev."));
pcSerial.println(easyvr.getID() & 7);
easyvr.setDelay(0); // speed-up replies
easyvr.setTimeout(5);
easyvr.setLanguage(0); //<-- same language set on EasyVR Commander when code was generated
group = EasyVR::TRIGGER; //<-- start group (customize)
}
void loop()
{
if (easyvr.getID() < EasyVR::EASYVR3)
easyvr.setPinOutput(EasyVR::IO1, HIGH); // LED on (listening)
if (group < 0) // SI wordset/grammar
{
pcSerial.print("Say a word in Wordset ");
pcSerial.println(-group);
easyvr.recognizeWord(-group);
}
else // SD group
{
pcSerial.print("Say a command in Group ");
pcSerial.println(group);
easyvr.recognizeCommand(group);
}
do
{
// allows Commander to request bridge on Zero (may interfere with user protocol)
if (pcSerial.read() == '?')
{
setup();
return;
}
// <<-- can do some processing here, while the module is busy
}
while (!easyvr.hasFinished());
if (easyvr.getID() < EasyVR::EASYVR3)
easyvr.setPinOutput(EasyVR::IO1, LOW); // LED off
idx = easyvr.getWord();
if (idx == 0 && group == EasyVR::TRIGGER)
{
// beep
////easyvr.playSound(0, EasyVR::VOL_FULL);
// print debug message
pcSerial.println("Word: ROBOT");
// write your action code here
// group = GROUP_X\SET_X; <-- jump to another group or wordset
return;
}
else if (idx >= 0)
{
// beep
////easyvr.playSound(0, EasyVR::VOL_FULL);
// print debug message
uint8_t flags = 0, num = 0;
char name[32];
pcSerial.print("Word: ");
pcSerial.print(idx);
if (easyvr.dumpGrammar(-group, flags, num))
{
for (uint8_t pos = 0; pos < num; ++pos)
{
if (!easyvr.getNextWordLabel(name))
break;
if (pos != idx)
continue;
pcSerial.print(F(" = "));
pcSerial.println(name);
break;
}
}
// perform some action
action();
return;
}
idx = easyvr.getCommand();
if (idx >= 0)
{
// beep
//easyvr.playSound(0, EasyVR::VOL_FULL);
// print debug message
uint8_t train = 0;
char name[32];
pcSerial.print("Command: ");
pcSerial.print(idx);
if (easyvr.dumpCommand(group, idx, name, train))
{
pcSerial.print(" = ");
pcSerial.println(name);
}
else
pcSerial.println();
// perform some action
action();
}
else // errors or timeout
{
if (easyvr.isTimeout())
pcSerial.println("Timed out, try again...");
int16_t err = easyvr.getError();
if (err >= 0)
{
pcSerial.print("Error ");
pcSerial.println(err, HEX);
}
}
}
The code that I have tried to combine the two.
#include "Arduino.h"
#if !defined(SERIAL_PORT_MONITOR)
#error "Arduino version not supported. Please update your IDE to the latest version."
#endif
#if defined(__SAMD21G18A__)
// Shield Jumper on HW (for Zero, use Programming Port)
#define port SERIAL_PORT_HARDWARE
#define pcSerial SERIAL_PORT_MONITOR
#elif defined(SERIAL_PORT_USBVIRTUAL)
// Shield Jumper on HW (for Leonardo and Due, use Native Port)
#define port SERIAL_PORT_HARDWARE
#define pcSerial SERIAL_PORT_USBVIRTUAL
#else
// Shield Jumper on SW (using pins 12/13 or 8/9 as RX/TX)
#include "SoftwareSerial.h"
SoftwareSerial port(1, 2);
#define pcSerial SERIAL_PORT_MONITOR
#endif
#include "EasyVR.h"
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
RF24 radio(5,6); // CNS, CE
const byte address[6] = "00001";
boolean buttonState = 0;
EasyVR easyvr(port);
//Groups and Commands
enum Groups
{
GROUP_0 = 0,
GROUP_1 = 1,
};
enum Group0
{
G0_JARVIS = 0,
};
enum Group1
{
G1_HOW_COOL_AM_I = 0,
G1_FLIGHT = 1,
G1_SHUTDOWN = 2,
G1_YOU_THERE = 3,
G1_REPULSERS = 4,
};
//Grammars and Words
enum Wordsets
{
SET_1 = -1,
SET_2 = -2,
SET_3 = -3,
};
enum Wordset1
{
S1_ACTION = 0,
S1_MOVE = 1,
S1_TURN = 2,
S1_RUN = 3,
S1_LOOK = 4,
S1_ATTACK = 5,
S1_STOP = 6,
S1_HELLO = 7,
};
enum Wordset2
{
S2_LEFT = 0,
S2_RIGHT = 1,
S2_UP = 2,
S2_DOWN = 3,
S2_FORWARD = 4,
S2_BACKWARD = 5,
};
enum Wordset3
{
S3_ZERO = 0,
S3_ONE = 1,
S3_TWO = 2,
S3_THREE = 3,
S3_FOUR = 4,
S3_FIVE = 5,
S3_SIX = 6,
S3_SEVEN = 7,
S3_EIGHT = 8,
S3_NINE = 9,
S3_TEN = 10,
};
// use negative group for wordsets
int8_t group, idx;
void setup()
{
// setup PC serial port
pcSerial.begin(9600);
radio.begin();
radio.openWritingPipe(address);
radio.setPALevel(RF24_PA_MIN);
radio.stopListening();
bridge:
// bridge mode?
int mode = easyvr.bridgeRequested(pcSerial);
switch (mode)
{
case EasyVR::BRIDGE_NONE:
// setup EasyVR serial port
port.begin(9600);
// run normally
pcSerial.println(F("Bridge not requested, run normally"));
pcSerial.println(F("---"));
break;
case EasyVR::BRIDGE_NORMAL:
// setup EasyVR serial port (low speed)
port.begin(9600);
// soft-connect the two serial ports (PC and EasyVR)
easyvr.bridgeLoop(pcSerial);
// resume normally if aborted
pcSerial.println(F("Bridge connection aborted"));
pcSerial.println(F("---"));
break;
case EasyVR::BRIDGE_BOOT:
// setup EasyVR serial port (high speed)
port.begin(115200);
pcSerial.end();
pcSerial.begin(115200);
// soft-connect the two serial ports (PC and EasyVR)
easyvr.bridgeLoop(pcSerial);
// resume normally if aborted
pcSerial.println(F("Bridge connection aborted"));
pcSerial.println(F("---"));
break;
}
// initialize EasyVR
while (!easyvr.detect())
{
pcSerial.println(F("EasyVR not detected!"));
for (int i = 0; i < 10; ++i)
{
if (pcSerial.read() == '?')
goto bridge;
delay(100);
}
}
pcSerial.print(F("EasyVR detected, version "));
pcSerial.print(easyvr.getID());
if (easyvr.getID() < EasyVR::EASYVR3)
easyvr.setPinOutput(EasyVR::IO1, LOW); // Shield 2.0 LED off
if (easyvr.getID() < EasyVR::EASYVR)
pcSerial.print(F(" = VRbot module"));
else if (easyvr.getID() < EasyVR::EASYVR2)
pcSerial.print(F(" = EasyVR module"));
else if (easyvr.getID() < EasyVR::EASYVR3)
pcSerial.print(F(" = EasyVR 2 module"));
else
pcSerial.print(F(" = EasyVR 3 module"));
pcSerial.print(F(", FW Rev."));
pcSerial.println(easyvr.getID() & 7);
easyvr.setDelay(0); // speed-up replies
easyvr.setTimeout(5);
easyvr.setLanguage(0); //<-- same language set on EasyVR Commander when code was generated
group = EasyVR::TRIGGER; //<-- start group (customize)
}
void loop()
{
if (easyvr.getID() < EasyVR::EASYVR3)
easyvr.setPinOutput(EasyVR::IO1, HIGH); // LED on (listening)
if (group < 0) // SI wordset/grammar
{
pcSerial.print("Say a word in Wordset ");
pcSerial.println(-group);
easyvr.recognizeWord(-group);
}
else // SD group
{
pcSerial.print("Say a command in Group ");
pcSerial.println(group);
easyvr.recognizeCommand(group);
}
do
{
// allows Commander to request bridge on Zero (may interfere with user protocol)
if (pcSerial.read() == '?')
{
setup();
return;
}
// <<-- can do some processing here, while the module is busy
}
while (!easyvr.hasFinished());
if (easyvr.getID() < EasyVR::EASYVR3)
easyvr.setPinOutput(EasyVR::IO1, LOW); // LED off
idx = easyvr.getWord();
if (idx == 0 && group == EasyVR::TRIGGER)
{
// beep
////easyvr.playSound(0, EasyVR::VOL_FULL);
// print debug message
pcSerial.println("Word: ROBOT");
// write your action code here
// group = GROUP_X\SET_X; <-- jump to another group or wordset
return;
}
else if (idx >= 0)
{
// beep
////easyvr.playSound(0, EasyVR::VOL_FULL);
// print debug message
uint8_t flags = 0, num = 0;
char name[32];
pcSerial.print("Word: ");
pcSerial.print(idx);
if (easyvr.dumpGrammar(-group, flags, num))
{
for (uint8_t pos = 0; pos < num; ++pos)
{
if (!easyvr.getNextWordLabel(name))
break;
if (pos != idx)
continue;
pcSerial.print(F(" = "));
pcSerial.println(name);
break;
}
}
// perform some action
action();
return;
}
idx = easyvr.getCommand();
if (idx >= 0)
{
// beep
//easyvr.playSound(0, EasyVR::VOL_FULL);
// print debug message
uint8_t train = 0;
char name[32];
pcSerial.print("Command: ");
pcSerial.print(idx);
if (easyvr.dumpCommand(group, idx, name, train))
{
pcSerial.print(" = ");
pcSerial.println(name);
}
else
pcSerial.println();
// perform some action
action();
}
else // errors or timeout
{
if (easyvr.isTimeout())
pcSerial.println("Timed out, try again...");
int16_t err = easyvr.getError();
if (err >= 0)
{
pcSerial.print("Error ");
pcSerial.println(err, HEX);
}
}
}
The serial monitor outputs "EasyVR not detected!"
SoftwareSerial port(1, 2);
Pin 1 is one of the hardware serial pins. You can NOT use it with SoftwareSerial if you are also using if for the hardware serial instance (Serial).
PaulS:
SoftwareSerial port(1, 2);Pin 1 is one of the hardware serial pins. You can NOT use it with SoftwareSerial if you are also using if for the hardware serial instance (Serial).
I will switch this back to the 12, 13 that it was in the original and report back. Thanks!
@LanternCroen, do you still have a nRF24 problem?
If so please add the complete program as an attachment.
...R
I was finally able to get it resolved. I am now working on getting 1 transmitter and 3 receivers.