fix timestamp issue

1 files changed, 6 insertions, 8 deletions

diff --git a/test_fw/src/main.cpp b/test_fw/src/main.cpp
index 6ffa9de..1ea9d09 100644
--- a/test_fw/src/main.cpp
+++ b/test_fw/src/main.cpp
@@ -371,22 +371,20 @@ void loop() {
 
             for (const auto &[name, _] : readings)
             {
-                data.write(name);
-                data.write(",");
+                data.printf("%s,", name);
             }
 
-            data.write("\n");
+            data.print('\n');
         }
 
-        data.write(String(millis()).c_str());
+        data.printf("%d,", millis());
 
-        for (const auto &[name, value] : readings)
+        for (const auto &[_, value] : readings)
         {
-            data.write(String(value).c_str());
-            data.write(",");
+            data.printf("%f,", value);
         }
 
-        data.write("\n");
+        data.print('\n');
         data.close();
 
 #if DEBUG_SD