diff --git a/lib/default/TasmotaSerial-3.6.0/src/TasmotaSerial.cpp b/lib/default/TasmotaSerial-3.6.0/src/TasmotaSerial.cpp
index 20654b05f..b30ec296c 100644
--- a/lib/default/TasmotaSerial-3.6.0/src/TasmotaSerial.cpp
+++ b/lib/default/TasmotaSerial-3.6.0/src/TasmotaSerial.cpp
@@ -424,6 +424,7 @@ size_t TasmotaSerial::write(uint8_t b) {
 
   if (m_tx_enable_pin > -1) {
     digitalWrite(m_tx_enable_pin, HIGH);
+    delayMicroseconds(10);  // delay(1) will exception here
   }
   size_t size = 0;
   if (m_hardserial) {
@@ -460,7 +461,7 @@ size_t TasmotaSerial::write(uint8_t b) {
     size = 1;
   }
   if (m_tx_enable_pin > -1) {
-    delayMicroseconds(800);  // delay(1) will exception here
+    delayMicroseconds(10);  // delay(1) will exception here
     digitalWrite(m_tx_enable_pin, LOW);
   }
   return size;
diff --git a/lib/lib_basic/TasmotaModbus-3.6.0/src/TasmotaModbus.cpp b/lib/lib_basic/TasmotaModbus-3.6.0/src/TasmotaModbus.cpp
index 0fb316bd3..98773a285 100644
--- a/lib/lib_basic/TasmotaModbus-3.6.0/src/TasmotaModbus.cpp
+++ b/lib/lib_basic/TasmotaModbus-3.6.0/src/TasmotaModbus.cpp
@@ -157,10 +157,11 @@ uint8_t TasmotaModbus::Send(uint8_t device_address, uint8_t function_code, uint1
   flush();
   if (mb_tx_enable_pin > -1) {
     digitalWrite(mb_tx_enable_pin, HIGH);
+    delayMicroseconds(10);  // delay(1) will exception here
   }
   write(frame, framepointer);
   if (mb_tx_enable_pin > -1) {
-    delayMicroseconds(800);  // delay(1) will exception here
+    delayMicroseconds(10);  // delay(1) will exception here
     digitalWrite(mb_tx_enable_pin, LOW);
   }
   free(frame);