diff --git a/sonoff/_changelog.ino b/sonoff/_changelog.ino
index 5b26d35d3..8429ce360 100644
--- a/sonoff/_changelog.ino
+++ b/sonoff/_changelog.ino
@@ -5,6 +5,7 @@
  * Add initial support for MQTT logging using command MqttLog <loglevel> (#6498)
  * Add Zigbee more support - collect endpoints and clusters, added ZigbeeDump command
  * Add initial support for shutters by Stefan Bode (#288)
+ * Add use case for sensor29 pin,1 and sensor29 pin,0 to substitute ON and OFF respectively with MCP230xx driver
  *
  * 6.6.0.13 20190922
  * Add command EnergyReset4 x,x to initialize total usage for two tarrifs
diff --git a/sonoff/xsns_29_mcp230xx.ino b/sonoff/xsns_29_mcp230xx.ino
index caefb67e8..9eb98b95a 100644
--- a/sonoff/xsns_29_mcp230xx.ino
+++ b/sonoff/xsns_29_mcp230xx.ino
@@ -628,11 +628,11 @@ bool MCP230xx_Command(void) {
 #ifdef USE_MCP230xx_OUTPUT
     if (Settings.mcp230xx_config[pin].pinmode >= 5) {
       uint8_t pincmd = Settings.mcp230xx_config[pin].pinmode - 5;
-      if (!strcmp(subStr(sub_string, XdrvMailbox.data, ",", 2), "ON")) {
+      if ((!strcmp(subStr(sub_string, XdrvMailbox.data, ",", 2), "ON")) || (!strcmp(subStr(sub_string, XdrvMailbox.data, ",", 2), "1"))) {
         MCP230xx_SetOutPin(pin,abs(pincmd-1));
         return serviced;
       }
-      if (!strcmp(subStr(sub_string, XdrvMailbox.data, ",", 2), "OFF")) {
+      if ((!strcmp(subStr(sub_string, XdrvMailbox.data, ",", 2), "OFF")) || (!strcmp(subStr(sub_string, XdrvMailbox.data, ",", 2), "0"))) {
         MCP230xx_SetOutPin(pin,pincmd);
         return serviced;
       }