diff --git a/.travis.yml b/.travis.yml
index 2368db5..2c31c6d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,7 +10,7 @@
 script:
 - "./generate_secrets.sh"
 - platformio run
-- gpg --keyserver pgp.mit.edu --recv-keys 1C0FF61B
+- gpg --keyserver keyserver.ubuntu.com --recv-keys 1C0FF61B
 - gpg --trust-model always --output firmware.bin.gpg --recipient 8D451F061C0FF61B --encrypt .pioenvs/esp01/firmware.bin
 env:
   global:
diff --git a/src/main.cpp b/src/main.cpp
index 51dfc0d..af93bdd 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -21,9 +21,9 @@
 const char *subTopic = "/command";
 
 void door_open() {
-  digitalWrite(0, LOW);
-  delay(1000);
   digitalWrite(0, HIGH);
+  delay(500);
+  digitalWrite(0, LOW);
 }
 
 void setup_wifi() {
@@ -89,6 +89,8 @@
 
 void setup() {
   pinMode(0, OUTPUT);
+  pinMode(2, OUTPUT);
+  digitalWrite(2, LOW); // REn=0, Receiver Output Enable. 
   digitalWrite(0, HIGH);
   Serial.begin(9600);
   // Serial.setTimeout(300);
@@ -109,7 +111,6 @@
 }
 
 void loop() {
-  char tmp;
   unsigned long cardid;
 
   if (!client.connected()) {