diff --git a/I2CDEVICES.md b/I2CDEVICES.md
index 75c0a1a9a..5ff8b9c4c 100644
--- a/I2CDEVICES.md
+++ b/I2CDEVICES.md
@@ -67,3 +67,4 @@ Index | Define | Driver | Device | Address(es) | Description
43 | USE_AHT1x | xsns_63 | AHT10/15 | 0x38 | Temperature and humidity sensor
44 | USE_WEMOS_MOTOR_V1 | xdrv_34 | | 0x2D - 0x30 | WEMOS motor shield v1.0.0 (6612FNG)
45 | USE_HDC1080 | xsns_65 | HDC1080 | 0x40 | Temperature and Humidity sensor
+ 46 | USE_DISPLAY_SEVENSEG| xdsp_11 | HT16K33 | 0x70 - 0x77 | Seven segment LED
diff --git a/tasmota/my_user_config.h b/tasmota/my_user_config.h
index 70504293c..6f3f6a53f 100644
--- a/tasmota/my_user_config.h
+++ b/tasmota/my_user_config.h
@@ -502,6 +502,8 @@
// #define USE_DISPLAY // Add I2C Display Support (+2k code)
#define USE_DISPLAY_MODES1TO5 // Enable display mode 1 to 5 in addition to mode 0
#define USE_DISPLAY_LCD // [DisplayModel 1] [I2cDriver3] Enable Lcd display (I2C addresses 0x27 and 0x3F) (+6k code)
+ #define USE_DISPLAY_LCD_ROWS 4 // Rows of display
+ #define USE_DISPLAY_LCD_COLS 20 // Columns of display
#define USE_DISPLAY_SSD1306 // [DisplayModel 2] [I2cDriver4] Enable SSD1306 Oled 128x64 display (I2C addresses 0x3C and 0x3D) (+16k code)
#define USE_DISPLAY_MATRIX // [DisplayModel 3] [I2cDriver5] Enable 8x8 Matrix display (I2C adresseses see below) (+11k code)
#define MTX_ADDRESS1 0x71 // [DisplayAddress1] I2C address of first 8x8 matrix module
@@ -512,6 +514,8 @@
#define MTX_ADDRESS6 0x76 // [DisplayAddress6] I2C address of sixth 8x8 matrix module
#define MTX_ADDRESS7 0x00 // [DisplayAddress7] I2C address of seventh 8x8 matrix module
#define MTX_ADDRESS8 0x00 // [DisplayAddress8] I2C address of eigth 8x8 matrix module
+ #define USE_DISPLAY_SEVENSEG // [DisplayModel 11] [I2cDriver46] Enable sevenseg display (I2C 0x70-0x77) (<+11k code)
+ #define SEVENSEG_ADDRESS1 0x70 // [DisplayAddress1] I2C address of first sevenseg matrix module
// #define USE_DISPLAY_SH1106 // [DisplayModel 7] [I2cDriver6] Enable SH1106 Oled 128x64 display (I2C addresses 0x3C and 0x3D)
#endif // USE_I2C
diff --git a/tasmota/xdsp_11_sevenseg.ino b/tasmota/xdsp_11_sevenseg.ino
new file mode 100644
index 000000000..ab311c92e
--- /dev/null
+++ b/tasmota/xdsp_11_sevenseg.ino
@@ -0,0 +1,305 @@
+/*
+ xdsp_03_matrix.ino - Display 8x8 matrix support for Tasmota
+
+ Copyright (C) 2020 Theo Arends and Adafruit
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see .
+*/
+
+#ifdef USE_I2C
+#ifdef USE_DISPLAY
+#ifdef USE_DISPLAY_SEVENSEG
+
+#define XDSP_11 11
+#define XI2C_46 46 // See I2CDEVICES.md
+
+#include
+#include
+#include // Seven segment LED
+
+Adafruit_7segment sevenseg = Adafruit_7segment();
+
+uint8_t sevenseg_state = 0;
+
+/*********************************************************************************************/
+
+void SevensegWrite(void)
+{
+ sevenseg.writeDisplay();
+}
+
+void SevensegClear(void)
+{
+ sevenseg.clear();
+ SevensegWrite();
+}
+
+
+/*********************************************************************************************/
+
+void SevensegInitMode(void)
+{
+ sevenseg.setBrightness(Settings.display_dimmer);
+ sevenseg.blinkRate(0); // 0 - 3
+ SevensegClear();
+}
+
+void SevensegInit(uint8_t mode)
+{
+ switch(mode) {
+ case DISPLAY_INIT_MODE:
+ case DISPLAY_INIT_PARTIAL:
+ case DISPLAY_INIT_FULL:
+ SevensegInitMode();
+ break;
+ }
+}
+
+void SevensegInitDriver(void)
+{
+ if (!Settings.display_model) {
+ if (I2cSetDevice(SEVENSEG_ADDRESS1)) {
+ Settings.display_model = XDSP_11;
+ }
+ }
+
+ if (XDSP_11 == Settings.display_model) {
+ sevenseg_state = 1;
+ sevenseg.begin(SEVENSEG_ADDRESS1);
+
+ Settings.display_width = 4;
+ Settings.display_height = 1;
+
+ SevensegInitMode();
+ }
+}
+
+void SevensegOnOff(void)
+{
+ if (!disp_power) { SevensegClear(); }
+}
+
+void SevensegDrawStringAt(uint16_t x, uint16_t y, char *str, uint16_t color, uint8_t flag)
+{
+ uint16_t number = 0;
+ boolean hasnumber= false;
+ uint8_t dots= 0;
+ boolean t=false;
+ boolean T=false;
+ boolean d=false;
+ boolean hex=false;
+ boolean done=false;
+ boolean s=false;
+ for (int i=0; (str[i]!='\0') && (!done); i++) {
+ // [prefix(es) chars]digits
+ // Some combinations won't make sense.
+ // Reference: https://learn.adafruit.com/adafruit-led-backpack/1-2-inch-7-segment-backpack-arduino-wiring-and-setup
+ // Valid combinations:
+ // x32 => 20
+ // st:241 => 04:01
+ // sT240 => 4 01
+ switch (str[i]) {
+ case 'x': // print given dec value as hex
+ hex = true;
+ break;
+ case ':': // print colon
+ dots |= 0x02;
+ break;
+ case '^': // print top_left_dot
+ dots |= 0x08;
+ break;
+ case 'v': // print bottom_left_dot
+ dots |= 0x04;
+ break;
+ case '.': // print ampm
+ dots |= 0x10;
+ break;
+ case 'T': // print as time 12 format
+ t = true;
+ break;
+ case 't': // print as time 24 format
+ T = true;
+ break;
+ case 's': // duration in seconds
+ s = true;
+ break;
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ hasnumber= true;
+ number = atoi(str+i);
+ done = true;
+ break;
+ default: // unknown format, ignore
+ break;
+ }
+ }
+
+ if (s) {
+ // number is duration in seconds
+ hex = false;
+ int hour = number/60/60;
+ int minute = (number/60)%60;
+
+ if (hour) {
+ // HH:MM
+ number = hour*100 + minute;
+ } else {
+ // MM:SS
+ number = minute*100 + number%60;
+ }
+ }
+
+ if (hasnumber) {
+ if (hex) {
+ sevenseg.print(number, HEX);
+ } else {
+ sevenseg.print(number, DEC);
+ }
+ }
+
+ if (dots) {
+ sevenseg.writeDigitRaw(2, dots);
+ }
+
+ sevenseg.writeDisplay();
+}
+
+/*********************************************************************************************/
+
+#ifdef USE_DISPLAY_MODES1TO5
+void SevensegTime(boolean time_24)
+{
+
+ uint hours = RtcTime.hour;
+ uint minutes = RtcTime.minute;
+ uint second = RtcTime.second;
+ uint16_t displayValue = hours * 100 + minutes;
+ uint16_t dots = 0;
+
+ // Do 24 hour to 12 hour format conversion when required.
+ if (!time_24) {
+ // Handle when hours are past 12 by subtracting 12 hours (1200 value).
+ if (hours > 12) {
+ displayValue -= 1200;
+ }
+ // Handle hour 0 (midnight) being shown as 12.
+ else if (hours == 0) {
+ displayValue += 1200;
+ }
+ }
+
+
+ // Now print the time value to the display.
+ sevenseg.print(displayValue, DEC);
+
+ // Add zero padding when in 24 hour mode and it's midnight.
+ // In this case the print function above won't have leading 0's
+ // which can look confusing. Go in and explicitly add these zeros.
+ if (time_24) {
+ if (hours == 0) {
+ // Pad hour 0.
+ sevenseg.writeDigitNum(1, 0);
+ // Also pad when the 10's minute is 0 and should be padded.
+ if (minutes < 10) {
+ sevenseg.writeDigitNum(3, 0);
+ }
+ }
+ if (hours < 10) {
+ // Always have 4 digits time
+ sevenseg.writeDigitNum(0, 0);
+ }
+ } else {
+ // Identify and display AM/PM
+ if (hours >= 12) {
+ dots |= 0x10;
+ }
+ }
+
+ sevenseg.writeDigitRaw(2, dots |= ((second%2) << 1));
+ sevenseg.writeDisplay();
+}
+
+#endif // USE_DISPLAY_MODES1TO5
+
+void SevensegRefresh(void) // Every second
+{
+ if (disp_power) {
+ if (Settings.display_mode) { // Mode 0 is User text
+ switch (Settings.display_mode) {
+ case 1: // Time 12
+ SevensegTime(false);
+ break;
+ case 2: // Time 24
+ SevensegTime(true);
+ break;
+ case 4: // Mqtt
+ case 3: // Local
+ case 5: { // Mqtt
+ break;
+ }
+ }
+ }
+ }
+}
+
+/*********************************************************************************************\
+ * Interface
+\*********************************************************************************************/
+
+bool Xdsp11(uint8_t function)
+{
+ if (!I2cEnabled(XI2C_46)) { return false; }
+
+ bool result = false;
+
+ if (FUNC_DISPLAY_INIT_DRIVER == function) {
+ SevensegInitDriver();
+ }
+ else if (XDSP_11 == Settings.display_model) {
+ switch (function) {
+ case FUNC_DISPLAY_MODEL:
+ result = true;
+ break;
+ case FUNC_DISPLAY_INIT:
+ SevensegInit(dsp_init);
+ break;
+ case FUNC_DISPLAY_CLEAR:
+ SevensegClear();
+ break;
+ case FUNC_DISPLAY_EVERY_SECOND:
+ SevensegRefresh();
+ break;
+ case FUNC_DISPLAY_ONOFF:
+ case FUNC_DISPLAY_POWER:
+ SevensegOnOff();
+ break;
+ case FUNC_DISPLAY_DRAW_STRING:
+ SevensegDrawStringAt(dsp_x, dsp_y, dsp_str, dsp_color, dsp_flag);
+ break;
+ }
+ }
+ return result;
+}
+
+#endif // USE_DISPLAY_MATRIX
+#endif // USE_DISPLAY
+#endif // USE_I2C