B4R Question callback in C/Inline does not work correctly!

OGmac

Member
Licensed User
My program works well when using esp-now in the Arduino IDE, but when I transferred this program to B4R it does not work properly back to the specified CALLBack function. What are the drawbacks of my program? :rolleyes:

C:
#include <ESP8266WiFi.h>
#include <espnow.h>
// REPLACE WITH THE MAC Address of your receiver
uint8_t broadcastAddress[] = {0x5C, 0xCF, 0x7F, 0x1A, 0x53, 0x22}; //5C CF 7F 1A 53 22
// Updates DHT readings every 10 seconds
const long interval = 10000;
unsigned long previousMillis = 0;    // will store last time DHT was updated
// Define variables to store incoming readings
float incomingTemp;
float incomingHum;
// Variable to store if sending data was successful
String success;
//Structure example to send data
//Must match the receiver structure
typedef struct struct_message {
    float temp;
    float hum;
} struct_message;
// Create a struct_message called DHTReadings to hold sensor readings
struct_message DHTReadings;
// Create a struct_message to hold incoming sensor readings
struct_message incomingReadings;
// Callback when data is sent
void OnDataSent(uint8_t *mac_addr, uint8_t sendStatus) {
  Serial.print("Last Packet Send Status: ");
  if (sendStatus == 0){
    Serial.println("Delivery success");
  }
  else{
    Serial.println("Delivery fail");
  }
}
// Callback when data is received
void OnDataRecv(uint8_t * mac, uint8_t *incomingData, uint8_t len) {
  memcpy(&incomingReadings, incomingData, sizeof(incomingReadings));
  Serial.print("Bytes received: ");
  Serial.println(len);
  incomingTemp = incomingReadings.temp;
  incomingHum = incomingReadings.hum;
}

void printIncomingReadings(){
  // Display Readings in Serial Monitor
  Serial.println("INCOMING READINGS");
  Serial.print("Temperature: ");
  Serial.print(incomingTemp);
  Serial.println(" ºC");
  Serial.print("Humidity: ");
  Serial.print(incomingHum);
  Serial.println(" %");
}
 
void setup() {
  // Init Serial Monitor
  Serial.begin(115200);
  // Set device as a Wi-Fi Station
  WiFi.mode(WIFI_STA);
  Serial.println(WiFi.macAddress());
  WiFi.disconnect();
  // Init ESP-NOW
  if (esp_now_init() != 0) {
    Serial.println("Error initializing ESP-NOW");
    return;
  }
  // Set ESP-NOW Role
  esp_now_set_self_role(ESP_NOW_ROLE_COMBO);
  // Once ESPNow is successfully Init, we will register for Send CB to
  // get the status of Trasnmitted packet
  esp_now_register_send_cb(OnDataSent);
  // Register peer
  esp_now_add_peer(broadcastAddress, ESP_NOW_ROLE_COMBO, 1, NULL, 0);
  // Register for a callback function that will be called when data is received
  esp_now_register_recv_cb(OnDataRecv);
}
 
void loop() {
  unsigned long currentMillis = millis();
  if (currentMillis - previousMillis >= interval) {
    // save the last time you updated the DHT values
    previousMillis = currentMillis;
    //Set values to send
    DHTReadings.temp = random(1,20);
    DHTReadings.hum = random(80,90);
    // Send message via ESP-NOW
    esp_now_send(broadcastAddress, (uint8_t *) &DHTReadings, sizeof(DHTReadings));
    // Print incoming readings
    printIncomingReadings();
  }
}
B4X:
#Region Project Attributes
    #AutoFlushLogs: True
    #CheckArrayBounds: True
    #StackBufferSize: 300
#End Region

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'Public variables can be accessed from all modules.
    Public Serial1 As Serial
End Sub

Private Sub AppStart
    Serial1.Initialize(115200)
    Log("")
    Log("AppStart")
    RunNative("init", Null)
    Delay(500)
    AddLooper("Looper1")
End Sub


Sub Looper1
    RunNative("refresh", Null)
End Sub


#if C

#include <ESP8266WiFi.h>
#include <espnow.h>

uint8_t broadcastAddress[] = {0x5C, 0xCF, 0x7F, 0x1A, 0x53, 0x22}; //5C CF 7F 1A 53 22

// Updates DHT readings every 10 seconds
const long interval = 10000;
unsigned long previousMillis = 0;    // will store last time DHT was updated

// Define variables to store incoming readings
float incomingTemp;
float incomingHum;

// Variable to store if sending data was successful
String success;

typedef struct struct_message {
    float temp;
    float hum;
} struct_message;

// Create a struct_message called DHTReadings to hold sensor readings
struct_message DHTReadings;

// Create a struct_message to hold incoming sensor readings
struct_message incomingReadings;

// Callback when data is sent
void OnDataSent(uint8_t *mac_addr, uint8_t sendStatus) {
  Serial.print("Last Packet Send Status: ");
  if (sendStatus == 0){
    Serial.println("Delivery success");
  }
  else{
    Serial.println("Delivery fail");
  }
}

// Callback when data is received
void OnDataRecv(uint8_t * mac, uint8_t *incomingData, uint8_t len) {
  memcpy(&incomingReadings, incomingData, sizeof(incomingReadings));
  Serial.print("Bytes received: ");
  Serial.println(len);
  incomingTemp = incomingReadings.temp;
  incomingHum = incomingReadings.hum;
}

void printIncomingReadings(){
  // Display Readings in Serial Monitor
  Serial.println("INCOMING READINGS");
  Serial.print("Temperature: ");
  Serial.print(incomingTemp);
  Serial.println(" ºC");
  Serial.print("Humidity: ");
  Serial.print(incomingHum);
  Serial.println(" %");
}

//------------------------------------------------------setup--------------------------------
void init(B4R::Object* o) {
  // Init Serial Monitor
  Serial.begin(115200);

  // Set device as a Wi-Fi Station
  WiFi.mode(WIFI_STA);
  Serial.println(WiFi.macAddress());
  WiFi.disconnect();

  // Init ESP-NOW
  if (esp_now_init() != 0) {
    Serial.println("Error initializing ESP-NOW");
    return;
  }
  // Set ESP-NOW Role
  esp_now_set_self_role(ESP_NOW_ROLE_COMBO);
  // Once ESPNow is successfully Init, we will register for Send CB to
  // get the status of Trasnmitted packet
  esp_now_register_send_cb(OnDataSent);
  // Register peer
  esp_now_add_peer(broadcastAddress, ESP_NOW_ROLE_COMBO, 1, NULL, 0);
  // Register for a callback function that will be called when data is received
  esp_now_register_recv_cb(OnDataRecv);
}

//-------------------------------------------------- Refresh-----------------------------------
 void refresh(B4R::Object* unused){
 
  unsigned long currentMillis = millis();
  if (currentMillis - previousMillis >= interval) {
    // save the last time you updated the DHT values
    previousMillis = currentMillis;
    //Set values to send
    DHTReadings.temp = random(1,20);
    DHTReadings.hum = random(80,90);
    // Send message via ESP-NOW
    esp_now_send(broadcastAddress, (uint8_t *) &DHTReadings, sizeof(DHTReadings));
    // Print incoming readings
    printIncomingReadings();
  }
}
#end if
 

miker2069

Active Member
Licensed User
Are you saying that when you call refresh via the looper the OnDataSent isn't fired? One thing that sticks out is that you're initializing WIFI inside inline C - do you have rESP8266WiFi checked in your project? You might have a conflict there. Try unchecking it in the project since you're managing all inline C, or, don't init it inline C and do the init from B4R (which looks like all you're doing is putting WIFI in station mode).
 
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