Nov 28, 2021 · Nov 22, 2021 · Nov 24, 2021 · Nov 26, 2021 · Nov 27, 2021
diff --git a/cores/esp8266/core_esp8266_si2c.cpp b/cores/esp8266/core_esp8266_si2c.cpp
        return false;
    }
    busywait(twi_dcount);
    // A high-to-low transition on the SDA line while the SCL is high defines a START condition.
    SDA_LOW(twi_sda);
    busywait(twi_dcount);
    // An additional delay between the SCL line high-to-low transition and setting up the SDA line to prevent a STOP condition execute.
    SCL_LOW(twi_scl);
    busywait(twi_dcount);
    return true;
 }

    SCL_HIGH(twi_scl);
    WAIT_CLOCK_STRETCH();
    busywait(twi_dcount);
    // A low-to-high transition on the SDA line while the SCL is high defines a STOP condition.
    SDA_HIGH(twi_sda);
    busywait(twi_dcount);
    return true;
Original file line number	Diff line number	Diff line change
Expand Up		@@ -247,8 +247,12 @@ bool Twi::write_start(void)
		return false;
		}
		busywait(twi_dcount);
		// A high-to-low transition on the SDA line while the SCL is high defines a START condition.
		SDA_LOW(twi_sda);
		busywait(twi_dcount);
		// An additional delay between the SCL line high-to-low transition and setting up the SDA line to prevent a STOP condition execute.
		SCL_LOW(twi_scl);
		busywait(twi_dcount);
		return true;
		}

Expand All		@@ -260,6 +264,7 @@ bool Twi::write_stop(void)
		SCL_HIGH(twi_scl);
		WAIT_CLOCK_STRETCH();
		busywait(twi_dcount);
		// A low-to-high transition on the SDA line while the SCL is high defines a STOP condition.
		SDA_HIGH(twi_sda);
		busywait(twi_dcount);
		return true;
Expand Down