Added some protection resistors on the IRQ lines

schematic/KiCad/ESP8266_dual_NRF24l01_gateway.pro

@@ -1,4 +1,4 @@
-update=29/12/2020 12:11:38
+update=20/06/2021 21:17:52
 version=1
 last_client=kicad
 [general]
@@ -34,7 +34,7 @@ LibDir=
 [schematic_editor]
 version=1
 PageLayoutDescrFile=
-PlotDirectoryName=
+PlotDirectoryName=D:/Users/Think/Programmation/Arduino/ESP8266_dual_NRF24l01_gateway/schematic/
 SubpartIdSeparator=0
 SubpartFirstId=65
 NetFmtName=

schematic/KiCad/ESP8266_dual_NRF24l01_gateway.sch

@@ -697,11 +697,11 @@ Wire Wire Line
 Wire Wire Line
 	6700 3300 6800 3300
 Wire Wire Line
-	6800 3300 6800 2100
+	6800 3300 6800 2850
 Wire Wire Line
 	6800 2100 6900 2100
 Wire Wire Line
-	6700 3400 8900 3400
+	6700 3400 7600 3400
 Wire Wire Line
 	8900 3400 8900 2100
 Wire Wire Line
@@ -802,13 +802,13 @@ Wire Wire Line
 Wire Wire Line
 	5050 3700 5250 3700
 Text Notes 850  7300 0    79   ~ 0
-ESP_GPIO_10 can only bes used in DIO mode /!\\n
+ESP_GPIO_10 can only be used in DIO mode /!\\n
 $Comp
 L Device:R R8
 U 1 1 607ED4ED
 P 5550 4100
-F 0 "R8" V 5650 4050 50  0000 C CNN
+F 0 "R8" V 5650 4100 50  0000 C CNN
-F 1 "1k" V 5650 4150 50  0000 C CNN
+F 1 "6.8k" V 5550 4100 50  0000 C CNN
 F 2 "" V 5480 4100 50  0001 C CNN
 F 3 "~" H 5550 4100 50  0001 C CNN
 	1    5550 4100
@@ -832,4 +832,32 @@ Wire Wire Line
 Connection ~ 4700 3400
 Wire Wire Line
 	4700 3400 5700 3400
+$Comp
+L Device:R R16
+U 1 1 60CE6C50
+P 7750 3400
+F 0 "R16" V 7850 3400 50  0000 C CNN
+F 1 "6.8k" V 7750 3400 50  0000 C CNN
+F 2 "" V 7680 3400 50  0001 C CNN
+F 3 "~" H 7750 3400 50  0001 C CNN
+	1    7750 3400
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	7900 3400 8900 3400
+$Comp
+L Device:R R15
+U 1 1 60CE8759
+P 6800 2700
+F 0 "R15" H 6900 2700 50  0000 C CNN
+F 1 "6.8k" V 6800 2700 50  0000 C CNN
+F 2 "" V 6730 2700 50  0001 C CNN
+F 3 "~" H 6800 2700 50  0001 C CNN
+	1    6800 2700
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	6800 2550 6800 2100
+Text Notes 850  7000 0    79   ~ 0
+/!\ R8 must be changed to a lower value like \n100 Ohm if using the nodemcu dev board instead of a bare bone ESP-12F
 $EndSCHEMATC

schematic/KiCad/ESP8266_dual_NRF24l01_gateway.sch-bak

@@ -4,7 +4,7 @@ EELAYER END
 $Descr A4 11693 8268
 encoding utf-8
 Sheet 1 1
-Title "ESP8266_dual_NRF24l01_gateway"
+Title "ESP8266 Dual NRF24L01 Gateway"
 Date "2020-12-29"
 Rev "1.0"
 Comp "www.web-directories.tk"
@@ -697,11 +697,11 @@ Wire Wire Line
 Wire Wire Line
 	6700 3300 6800 3300
 Wire Wire Line
-	6800 3300 6800 2100
+	6800 3300 6800 2850
 Wire Wire Line
 	6800 2100 6900 2100
 Wire Wire Line
-	6700 3400 8900 3400
+	6700 3400 7600 3400
 Wire Wire Line
 	8900 3400 8900 2100
 Wire Wire Line
@@ -807,8 +807,8 @@ $Comp
 L Device:R R8
 U 1 1 607ED4ED
 P 5550 4100
-F 0 "R8" V 5650 4050 50  0000 C CNN
+F 0 "R8" V 5650 4100 50  0000 C CNN
-F 1 "1k" V 5650 4150 50  0000 C CNN
+F 1 "6.8k" V 5550 4100 50  0000 C CNN
 F 2 "" V 5480 4100 50  0001 C CNN
 F 3 "~" H 5550 4100 50  0001 C CNN
 	1    5550 4100
@@ -832,4 +832,30 @@ Wire Wire Line
 Connection ~ 4700 3400
 Wire Wire Line
 	4700 3400 5700 3400
+$Comp
+L Device:R R?
+U 1 1 60CE6C50
+P 7750 3400
+F 0 "R?" V 7850 3400 50  0000 C CNN
+F 1 "6.8k" V 7750 3400 50  0000 C CNN
+F 2 "" V 7680 3400 50  0001 C CNN
+F 3 "~" H 7750 3400 50  0001 C CNN
+	1    7750 3400
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	7900 3400 8900 3400
+$Comp
+L Device:R R?
+U 1 1 60CE8759
+P 6800 2700
+F 0 "R?" H 6900 2700 50  0000 C CNN
+F 1 "6.8k" V 6800 2700 50  0000 C CNN
+F 2 "" V 6730 2700 50  0001 C CNN
+F 3 "~" H 6800 2700 50  0001 C CNN
+	1    6800 2700
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	6800 2550 6800 2100
 $EndSCHEMATC

src/tests/tests.ino

@@ -30,16 +30,28 @@ RF24 NRF_1(NRF_1_CE, NRF_1_CS);
 RF24 NRF_2(NRF_2_CE, NRF_2_CS);
 PCF8574 PCF(0x20);
 
-const uint8_t ADDR[] = "WEST1";
+const uint8_t ADDR[] = "WEST1", ADDR2[] = "ABCDE";
 uint64_t timeStamp(0), recvSlot(0), packetTimeout(0);
 uint32_t freeMem(0);
 uint16_t biggestContigMemBlock(0);
 uint8_t frag(0);
+volatile boolean IRQFlag(false);
+
+IRAM_ATTR void NRFIRQsHandler(void *p)
+{
+  Serial.println("NRF IRQs detected !");
+  *(boolean *)p = true;
+}
 
 void setup() {
   //We do not need to read on the serial bus
+  delay(1000);
+  Serial.println("\nSetup begin");
   Serial.begin(115200, SERIAL_8N1, SERIAL_TX_ONLY);
-  Serial.println("Setup begin");
+  //We set the RXD0 as a GPIO
+  pinMode(D9, FUNCTION_3);
+  pinMode(D9, INPUT);
+  attachInterruptArg(D9,&(NRFIRQsHandler), (void *)&IRQFlag, FALLING);
   //To prevent wear and tear on the flash mem
   WiFi.persistent(false);
   WiFi.disconnect(true);
@@ -82,22 +94,69 @@ void setup() {
   Serial.println("End setup");
 }
 
-void loop() {
+void loop() 
-  // put your main code here, to run repeatedly:
+{
   if(millis() - recvSlot > RECV_CHECK)
   {
-    if(NRF_1.available()) //Then we read the incoming data
+    //We check if we got and IRQ from one, both NRFs
+    if(IRQFlag)
     {
+      bool tx_ok, tx_fail, rx_ready;
+      //We read the PCFs IO to check which NRF raised the IRQ :
+      if(!PCF.digitalRead(PCF8574::P1)) //IRQs are active low
+      {
+        Serial.printf("NRF 1 triggered the IRQs\n Checking why :\n");
+        NRF_1.whatHappened(tx_ok, tx_fail, rx_ready);
+        if(tx_ok)
+        {
+          Serial.println("NRF 1 TX_OK");
+        }
+        if(tx_fail)
+        {
+          Serial.println("NRF 1 TX_FAIL");
+        }
+        if(rx_ready)
+        {
+          Serial.printf("NRF 1 Received %u bytes with sig(%s) : \n",NRF_1.getPayloadSize(), NRF_1.testRPD()?"good":"bad");
           NRF_1.read(&p, sizeof(p));
-      Serial.printf("NRF 1 Received : \n");
           debugStruct(&p);
         }
-    if(NRF_2.available()) //Then we read the incoming data
+      }
+      if(!PCF.digitalRead(PCF8574::P0)) //IRQs are active low
       {
+        Serial.printf("NRF 2 triggered the IRQs\n Checking why :\n");
+        NRF_2.whatHappened(tx_ok, tx_fail, rx_ready);
+        if(tx_ok)
+        {
+          Serial.println("NRF 2 TX_OK");
+        }
+        if(tx_fail)
+        {
+          Serial.println("NRF 2 TX_FAIL");
+        }
+        if(rx_ready)
+        {
+          Serial.printf("NRF 2 Received %u bytes with sig(%s) : \n",NRF_2.getPayloadSize(), NRF_2.testRPD()?"good":"bad");
           NRF_2.read(&p, sizeof(p));
-      Serial.printf("NRF 2 Received : \n");
           debugStruct(&p);
         }
+      }
+
+      //We check if the RX fifo the NRFs are full
+      //If yes, it means we have a big problem since packets can be thrown away without notice
+      //Could be due to missed IRQs (very bad)
+      if(NRF_1.rxFifoFull())
+      {
+        Serial.println("NRF 1 FIFO FULL !!!!!!!!!!!!");
+        NRF_1.flush_rx();
+      }
+      if(NRF_2.rxFifoFull())
+      {
+        Serial.println("NRF 2 FIFO FULL !!!!!!!!!!!!");
+        NRF_2.flush_rx();
+      }
+      IRQFlag = false;
+    }
     recvSlot = millis();
   }