diff --git a/sonoff/xsns_05_ds18x20_legacy.ino b/sonoff/xsns_05_ds18x20_legacy.ino
deleted file mode 100644
index 6fe0d764c..000000000
--- a/sonoff/xsns_05_ds18x20_legacy.ino
+++ /dev/null
@@ -1,245 +0,0 @@
-/*
- xsns_05_ds18x20_legacy.ino - DS18x20 temperature sensor support for Sonoff-Tasmota
-
- Copyright (C) 2019 Heiko Krupp and Theo Arends
-
- 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_DS18x20_LEGACY
-/*********************************************************************************************\
- * DS18B20 - Temperature
-\*********************************************************************************************/
-
-#define XSNS_05 5
-
-#define DS18S20_CHIPID 0x10
-#define DS18B20_CHIPID 0x28
-#define MAX31850_CHIPID 0x3B
-
-#define W1_SKIP_ROM 0xCC
-#define W1_CONVERT_TEMP 0x44
-#define W1_READ_SCRATCHPAD 0xBE
-
-#define DS18X20_MAX_SENSORS 8
-
-#include
-
-OneWire *ds = nullptr;
-
-uint8_t ds18x20_address[DS18X20_MAX_SENSORS][8];
-uint8_t ds18x20_index[DS18X20_MAX_SENSORS];
-uint8_t ds18x20_sensors = 0;
-char ds18x20_types[9];
-
-void Ds18x20Init(void)
-{
- ds = new OneWire(pin[GPIO_DSB]);
-}
-
-void Ds18x20Search(void)
-{
- uint8_t num_sensors=0;
- uint8_t sensor = 0;
-
- ds->reset_search();
- for (num_sensors = 0; num_sensors < DS18X20_MAX_SENSORS; num_sensors) {
- if (!ds->search(ds18x20_address[num_sensors])) {
- ds->reset_search();
- break;
- }
- // If CRC Ok and Type DS18S20, DS18B20 or MAX31850
- if ((OneWire::crc8(ds18x20_address[num_sensors], 7) == ds18x20_address[num_sensors][7]) &&
- ((ds18x20_address[num_sensors][0]==DS18S20_CHIPID) || (ds18x20_address[num_sensors][0]==DS18B20_CHIPID) || (ds18x20_address[num_sensors][0]==MAX31850_CHIPID))) {
- num_sensors++;
- }
- }
- for (uint32_t i = 0; i < num_sensors; i++) {
- ds18x20_index[i] = i;
- }
- for (uint32_t i = 0; i < num_sensors; i++) {
- for (uint32_t j = i + 1; j < num_sensors; j++) {
- if (uint32_t(ds18x20_address[ds18x20_index[i]]) > uint32_t(ds18x20_address[ds18x20_index[j]])) {
- std::swap(ds18x20_index[i], ds18x20_index[j]);
- }
- }
- }
- ds18x20_sensors = num_sensors;
-}
-
-uint8_t Ds18x20Sensors(void)
-{
- return ds18x20_sensors;
-}
-
-String Ds18x20Addresses(uint8_t sensor)
-{
- char address[20];
-
- for (uint32_t i = 0; i < 8; i++) {
- sprintf(address+2*i, "%02X", ds18x20_address[ds18x20_index[sensor]][i]);
- }
- return String(address);
-}
-
-void Ds18x20Convert(void)
-{
- ds->reset();
- ds->write(W1_SKIP_ROM); // Address all Sensors on Bus
- ds->write(W1_CONVERT_TEMP); // start conversion, no parasite power on at the end
-// delay(750); // 750ms should be enough for 12bit conv
-}
-
-bool Ds18x20Read(uint8_t sensor, float &t)
-{
- uint8_t data[12];
- int8_t sign = 1;
- uint16_t temp12 = 0;
- int16_t temp14 = 0;
- float temp9 = 0.0;
- uint8_t present = 0;
-
- t = NAN;
-
- ds->reset();
- ds->select(ds18x20_address[ds18x20_index[sensor]]);
- ds->write(W1_READ_SCRATCHPAD); // Read Scratchpad
-
- for (uint32_t i = 0; i < 9; i++) {
- data[i] = ds->read();
- }
- if (OneWire::crc8(data, 8) == data[8]) {
- switch(ds18x20_address[ds18x20_index[sensor]][0]) {
- case DS18S20_CHIPID:
- if (data[1] > 0x80) {
- data[0] = (~data[0]) +1;
- sign = -1; // App-Note fix possible sign error
- }
- temp9 = (float)(data[0] >> 1) * sign;
- t = ConvertTemp((temp9 - 0.25) + ((16.0 - data[6]) / 16.0));
- break;
- case DS18B20_CHIPID:
- temp12 = (data[1] << 8) + data[0];
- if (temp12 > 2047) {
- temp12 = (~temp12) +1;
- sign = -1;
- }
- t = ConvertTemp(sign * temp12 * 0.0625); // Divide by 16
- break;
- case MAX31850_CHIPID:
- temp14 = (data[1] << 8) + (data[0] & 0xFC);
- t = ConvertTemp(temp14 * 0.0625); // Divide by 16
- break;
- }
- }
- return (!isnan(t));
-}
-
-/********************************************************************************************/
-
-void Ds18x20Type(uint8_t sensor)
-{
- strcpy_P(ds18x20_types, PSTR("DS18x20"));
- switch(ds18x20_address[ds18x20_index[sensor]][0]) {
- case DS18S20_CHIPID:
- strcpy_P(ds18x20_types, PSTR("DS18S20"));
- break;
- case DS18B20_CHIPID:
- strcpy_P(ds18x20_types, PSTR("DS18B20"));
- break;
- case MAX31850_CHIPID:
- strcpy_P(ds18x20_types, PSTR("MAX31850"));
- break;
- }
-}
-
-void Ds18x20Show(bool json)
-{
- char stemp[10];
- float t;
-
- uint8_t dsxflg = 0;
- for (uint32_t i = 0; i < Ds18x20Sensors(); i++) {
- if (Ds18x20Read(i, t)) { // Check if read failed
- Ds18x20Type(i);
- char temperature[33];
- dtostrfd(t, Settings.flag2.temperature_resolution, temperature);
-
- if (json) {
- if (!dsxflg) {
- ResponseAppend_P(PSTR(",\"DS18x20\":{"));
- stemp[0] = '\0';
- }
- dsxflg++;
- ResponseAppend_P(PSTR("%s\"DS%d\":{\"" D_JSON_TYPE "\":\"%s\",\"" D_JSON_ADDRESS "\":\"%s\",\"" D_JSON_TEMPERATURE "\":%s}"),
- stemp, i +1, ds18x20_types, Ds18x20Addresses(i).c_str(), temperature);
- strlcpy(stemp, ",", sizeof(stemp));
-#ifdef USE_DOMOTICZ
- if ((0 == tele_period) && (1 == dsxflg)) {
- DomoticzSensor(DZ_TEMP, temperature);
- }
-#endif // USE_DOMOTICZ
-#ifdef USE_KNX
- if ((0 == tele_period) && (1 == dsxflg)) {
- KnxSensor(KNX_TEMPERATURE, t);
- }
-#endif // USE_KNX
-#ifdef USE_WEBSERVER
- } else {
- snprintf_P(stemp, sizeof(stemp), PSTR("%s%c%d"), ds18x20_types, IndexSeparator(), i +1);
- WSContentSend_PD(HTTP_SNS_TEMP, stemp, temperature, TempUnit());
-#endif // USE_WEBSERVER
- }
- }
- }
- if (json) {
- if (dsxflg) {
- ResponseJsonEnd();
- }
- }
- Ds18x20Search(); // Check for changes in sensors number
- Ds18x20Convert(); // Start Conversion, takes up to one second
-}
-
-/*********************************************************************************************\
- * Interface
-\*********************************************************************************************/
-
-bool Xsns05(uint8_t function)
-{
- bool result = false;
-
- if (pin[GPIO_DSB] < 99) {
- switch (function) {
- case FUNC_INIT:
- Ds18x20Init();
- break;
- case FUNC_PREP_BEFORE_TELEPERIOD:
- Ds18x20Search(); // Check for changes in sensors number
- Ds18x20Convert(); // Start Conversion, takes up to one second
- break;
- case FUNC_JSON_APPEND:
- Ds18x20Show(1);
- break;
-#ifdef USE_WEBSERVER
- case FUNC_WEB_SENSOR:
- Ds18x20Show(0);
- break;
-#endif // USE_WEBSERVER
- }
- }
- return result;
-}
-
-#endif // USE_DS18x20_LEGACY