From 6b95624b3ec6630550fe30e093c2f1f38bf38605 Mon Sep 17 00:00:00 2001
From: Joerg Lehmann <joerg.lehmann@nbit.ch>
Date: Thu, 29 Apr 2021 18:57:15 +0200
Subject: [PATCH] revert last change

---
 main.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/main.go b/main.go
index 23491e0..de3267e 100644
--- a/main.go
+++ b/main.go
@@ -501,7 +501,9 @@ func WriteDatapoint(mytime int64, deveui string, devaddr string, v uint8, h uint
 			vp = 100
 		}
 
-		sv = fmt.Sprintf("v=%di,vp=%di,", int32(v)*7+2510, vp)
+		if v > 0 {
+			sv = fmt.Sprintf("v=%di,vp=%di,", int32(v)*7+2510, vp)
+		}
 
 		s := ""
 		sfw := ""