From 82f898fab58cec15a85f01f2b99027e4d4debb78 Mon Sep 17 00:00:00 2001
From: Hieromon Ikasamo <Hieromon@users.noreply.github.com>
Date: Sun, 19 May 2019 06:21:25 +0900
Subject: [PATCH] Added the existence check of PSRAM

---
 src/AutoConnectJsonDefs.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/AutoConnectJsonDefs.h b/src/AutoConnectJsonDefs.h
index a596df2..b1da00a 100644
--- a/src/AutoConnectJsonDefs.h
+++ b/src/AutoConnectJsonDefs.h
@@ -42,7 +42,14 @@ using ArduinoJsonArray = JsonArray;
 // JsonDocument is assigned to PSRAM by ArduinoJson's custom allocator.
 struct SpiRamAllocatorST {
   void* allocate(size_t size) {
-    return heap_caps_malloc(size, MALLOC_CAP_SPIRAM);
+    uint32_t  caps;
+    if (psramFound())
+      caps = MALLOC_CAP_SPIRAM;
+    else {
+      caps = MALLOC_CAP_8BIT;
+      AC_DBG("PSRAM not found, JSON buffer allocates to the heap.\n");
+    } 
+    return heap_caps_malloc(size, caps);
   }
   void  deallocate(void* pointer) {
     heap_caps_free(pointer);