PICO-V3 detection

- requires V4 environment

Author: blazoncek

wled00/pin_manager.cpp

@@ -100,7 +100,8 @@ bool PinManager::allocateMultiplePins(const managed_pin_type * mptArray, byte ar
       // as this can greatly simplify configuration arrays
       continue;
     }
-    if (!isPinOk(gpio, mptArray[i].isOutput)) {
+    // allow any GPIO for Ethernet (compile time assigned)
+    if (!(isPinOk(gpio, mptArray[i].isOutput) || tag==PinOwner::Ethernet)) {
       DEBUG_PRINTF_P(PSTR("PIN ALLOC: FAIL Invalid pin attempted to be allocated: GPIO %d as %s\n."), gpio, mptArray[i].isOutput ? PSTR("output"): PSTR("input"));
       shouldFail = true;
     }
@@ -228,19 +229,18 @@ bool PinManager::isPinOk(byte gpio, bool output)
   #else
 
     if ((strncmp_P(PSTR("ESP32-U4WDH"), ESP.getChipModel(), 11) == 0) ||    // this is the correct identifier, but....
-        (strncmp_P(PSTR("ESP32-PICO-D2"), ESP.getChipModel(), 13) == 0)) {  // https://github.com/espressif/arduino-esp32/issues/10683
+        (strncmp_P(PSTR("ESP32-PICO-D"), ESP.getChipModel(), 12) == 0)) {   // https://github.com/espressif/arduino-esp32/issues/10683
       // this chip has 4 MB of internal Flash and different packaging, so available pins are different!
-      if (((gpio > 5) && (gpio < 9)) || (gpio == 11))
-        return false;
+      if ((gpio > 5 && gpio < 9) || gpio == 11) return false;               // U4WDH/PICO-D2 & PICO-D4: GPIO 6, 7, 8, 11 are used for SPI flash; 9 & 10 are free
+      if (gpio == 16 || gpio == 17) return false;                           // U4WDH/PICO-D?: GPIO 16 and 17 are used for PSRAM
+    } else if (strncmp_P(PSTR("ESP32-PICO-V3"), ESP.getChipModel(), 13) == 0) {
+      if (gpio == 6 || gpio == 11) return false;                            // PICO-V3: uses GPIO 6 and 11 for flash
+      if (strstr_P(ESP.getChipModel(), PSTR("V3-02")) != nullptr && (gpio == 9 || gpio == 10)) return false; // PICO-V3-02: uses GPIO 9 and 10 for PSRAM; 7, 8 are free
     } else {
       // for classic ESP32 (non-mini) modules, these are the SPI flash pins
       if (gpio > 5 && gpio < 12) return false;      //SPI flash pins
     }
-
-    if (((strncmp_P(PSTR("ESP32-PICO"), ESP.getChipModel(), 10) == 0) ||
-         (strncmp_P(PSTR("ESP32-U4WDH"), ESP.getChipModel(), 11) == 0))
-        && (gpio == 16 || gpio == 17)) return false; // PICO-D4/U4WDH: gpio16+17 are in use for onboard SPI FLASH
-    if (gpio == 16 || gpio == 17) return !psramFound(); //PSRAM pins on ESP32 (these are IO)
+    if (gpio == 16 || gpio == 17) return !psramFound(); // PSRAM pins on ESP32-D0WDR2-V3 (these are IO)
   #endif
     if (output) return digitalPinCanOutput(gpio);
     else        return true;