diff --git a/app/data/cfg.json b/app/data/cfg.json
index 8c089dc..0ffe6fd 100644
--- a/app/data/cfg.json
+++ b/app/data/cfg.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.8.80",
+  "version": "1.8.81",
   "ext_port": 1111,
   "profiles": {
     "mcopy": {
diff --git a/app/package-lock.json b/app/package-lock.json
index a94ef25..4212838 100644
--- a/app/package-lock.json
+++ b/app/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "mcopy-app",
-  "version": "1.8.80",
+  "version": "1.8.81",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
diff --git a/app/package.json b/app/package.json
index 36c2fbe..034d0b0 100644
--- a/app/package.json
+++ b/app/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mcopy-app",
-  "version": "1.8.80",
+  "version": "1.8.81",
   "description": "GUI for the mcopy small gauge film optical printer platform",
   "main": "main.js",
   "scripts": {
diff --git a/data/cfg.json b/data/cfg.json
index 78815a6..6807c2d 100644
--- a/data/cfg.json
+++ b/data/cfg.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.8.80",
+  "version": "1.8.81",
   "ext_port": 1111,
   "profiles": {
     "mcopy": {
diff --git a/ino/mcopy_mono_firmware_projectors/mcopy_mono_firmware_projectors.ino b/ino/mcopy_mono_firmware_projectors/mcopy_mono_firmware_projectors.ino
index 90637c6..662de3c 100644
--- a/ino/mcopy_mono_firmware_projectors/mcopy_mono_firmware_projectors.ino
+++ b/ino/mcopy_mono_firmware_projectors/mcopy_mono_firmware_projectors.ino
@@ -15,6 +15,10 @@
  *  - controls the directional relays of the primary projector.
  * 07 - CH8 - 4 pronged trigger cable
  *  - triggers the primary projectory
+ * 
+ * Pins - 4CH Sainsmart Solid State Relay Board
+ * 06 - CH1 - FWD PROJ2
+ * 05 - CH2 - FWD PROJ2
  */
 
 boolean debug_state = false;
@@ -30,7 +34,7 @@ const int proj_second_fwd_pin = 6;
 const int proj_second_bwd_pin = 5;
 const int proj_second_pin = 4;
 
-const int proj_momentary = 60;
+const int proj_momentary = 90;
 const int proj_time = 950; //secondary projector speed
 const int proj_delay = 42;
 
@@ -58,7 +62,8 @@ const char cmd_debug = 'd';
 const char cmd_connect = 'i';
 volatile char cmd_char = 'z';
 const char cmd_mcopy_identifier = 'm';
-const char cmd_proj_identifier = 'd'; //dual projector identifier
+const char cmd_proj_identifier = 'x'; //dual projector identifier
+//const char cmd_proj_identifier = 'j'; //single projector identifier
 
 const int serialDelay = 5;
 
diff --git a/package-lock.json b/package-lock.json
index d0fad71..a6cee0f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "mcopy",
-  "version": "1.8.80",
+  "version": "1.8.81",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "mcopy",
-      "version": "1.8.80",
+      "version": "1.8.81",
       "license": "MIT",
       "dependencies": {
         "arduino": "file:app/lib/arduino",
diff --git a/package.json b/package.json
index 63990f0..e91b6b0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mcopy",
-  "version": "1.8.80",
+  "version": "1.8.81",
   "description": "Small gauge film optical printer platform",
   "main": "build.js",
   "directories": {
diff --git a/processing/mcopy/cfg.json b/processing/mcopy/cfg.json
index 8c089dc..0ffe6fd 100644
--- a/processing/mcopy/cfg.json
+++ b/processing/mcopy/cfg.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.8.80",
+  "version": "1.8.81",
   "ext_port": 1111,
   "profiles": {
     "mcopy": {