From 3ee0fdee5092f064883f9e367c23a5ae15771ee4 Mon Sep 17 00:00:00 2001
From: Hieromon Ikasamo <hieromon@gmail.com>
Date: Wed, 22 May 2019 14:54:23 +0900
Subject: [PATCH] Added the existence check of PSRAM #77

---
 src/AutoConnectElementJson.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/AutoConnectElementJson.h b/src/AutoConnectElementJson.h
index ed42401..2f82a73 100644
--- a/src/AutoConnectElementJson.h
+++ b/src/AutoConnectElementJson.h
@@ -76,7 +76,13 @@ 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");
+    } 
   }
   void  deallocate(void* pointer) {
     heap_caps_free(pointer);