diff --git a/tasmota/language/af_AF.h b/tasmota/language/af_AF.h
index 69ed9612e..1e4067cda 100644
--- a/tasmota/language/af_AF.h
+++ b/tasmota/language/af_AF.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/bg_BG.h b/tasmota/language/bg_BG.h
index 1fde089d9..8685937f1 100644
--- a/tasmota/language/bg_BG.h
+++ b/tasmota/language/bg_BG.h
@@ -710,6 +710,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/cs_CZ.h b/tasmota/language/cs_CZ.h
index 4809e6ccf..30a70d7dd 100644
--- a/tasmota/language/cs_CZ.h
+++ b/tasmota/language/cs_CZ.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/de_DE.h b/tasmota/language/de_DE.h
index 0cc13b3db..fd46e8b93 100644
--- a/tasmota/language/de_DE.h
+++ b/tasmota/language/de_DE.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/el_GR.h b/tasmota/language/el_GR.h
index 37b10413d..c8045a79e 100644
--- a/tasmota/language/el_GR.h
+++ b/tasmota/language/el_GR.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/en_GB.h b/tasmota/language/en_GB.h
index dbcfb9a6f..462d64971 100644
--- a/tasmota/language/en_GB.h
+++ b/tasmota/language/en_GB.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/es_ES.h b/tasmota/language/es_ES.h
index 9f8144dd0..be52d59a9 100644
--- a/tasmota/language/es_ES.h
+++ b/tasmota/language/es_ES.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/fr_FR.h b/tasmota/language/fr_FR.h
index dbdca0efe..7fa9836c5 100644
--- a/tasmota/language/fr_FR.h
+++ b/tasmota/language/fr_FR.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 TX"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 TX"
 #define D_SENSOR_PN532_RX      "PN532 RX"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/fy_NL.h b/tasmota/language/fy_NL.h
index 7703bfcee..3356d7963 100644
--- a/tasmota/language/fy_NL.h
+++ b/tasmota/language/fy_NL.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/he_HE.h b/tasmota/language/he_HE.h
index 9ebd39c51..75a6cae2c 100644
--- a/tasmota/language/he_HE.h
+++ b/tasmota/language/he_HE.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/hu_HU.h b/tasmota/language/hu_HU.h
index 5f1c511ab..f9db1b371 100644
--- a/tasmota/language/hu_HU.h
+++ b/tasmota/language/hu_HU.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/it_IT.h b/tasmota/language/it_IT.h
index 7b3335658..61e3cdcb2 100644
--- a/tasmota/language/it_IT.h
+++ b/tasmota/language/it_IT.h
@@ -765,6 +765,7 @@
 #define D_SENSOR_LE01MR_TX              "LE-01MR - TX"
 #define D_SENSOR_BL0940_RX              "BL0940 - RX"
 #define D_SENSOR_BL0939_RX              "BL0939 - RX"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_CC1101_GDO0            "CC1101 - GDO0"
 #define D_SENSOR_CC1101_GDO2            "CC1101 - GDO2"
 #define D_SENSOR_HRXL_RX                "HRXL - RX"
diff --git a/tasmota/language/ko_KO.h b/tasmota/language/ko_KO.h
index 4ebb63250..d446aa0e0 100644
--- a/tasmota/language/ko_KO.h
+++ b/tasmota/language/ko_KO.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/nl_NL.h b/tasmota/language/nl_NL.h
index 56e0a5faf..e1d0f60e5 100644
--- a/tasmota/language/nl_NL.h
+++ b/tasmota/language/nl_NL.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/pl_PL.h b/tasmota/language/pl_PL.h
index be85b7f5b..d4eea1c59 100644
--- a/tasmota/language/pl_PL.h
+++ b/tasmota/language/pl_PL.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/pt_BR.h b/tasmota/language/pt_BR.h
index e0822795f..5dcbd96f3 100644
--- a/tasmota/language/pt_BR.h
+++ b/tasmota/language/pt_BR.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/pt_PT.h b/tasmota/language/pt_PT.h
index 32b4c9ace..7f16771aa 100644
--- a/tasmota/language/pt_PT.h
+++ b/tasmota/language/pt_PT.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/ro_RO.h b/tasmota/language/ro_RO.h
index 6ea846aea..59ecc19fc 100644
--- a/tasmota/language/ro_RO.h
+++ b/tasmota/language/ro_RO.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/ru_RU.h b/tasmota/language/ru_RU.h
index b34629afb..5734acb95 100644
--- a/tasmota/language/ru_RU.h
+++ b/tasmota/language/ru_RU.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/sk_SK.h b/tasmota/language/sk_SK.h
index bb38d0625..ceba0deba 100644
--- a/tasmota/language/sk_SK.h
+++ b/tasmota/language/sk_SK.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/sv_SE.h b/tasmota/language/sv_SE.h
index 2c4b4bb29..30f9771a8 100644
--- a/tasmota/language/sv_SE.h
+++ b/tasmota/language/sv_SE.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/tr_TR.h b/tasmota/language/tr_TR.h
index 547b14a43..38da2ebb5 100644
--- a/tasmota/language/tr_TR.h
+++ b/tasmota/language/tr_TR.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/uk_UA.h b/tasmota/language/uk_UA.h
index 829dc18cd..4da3f94ac 100644
--- a/tasmota/language/uk_UA.h
+++ b/tasmota/language/uk_UA.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/vi_VN.h b/tasmota/language/vi_VN.h
index f60e26634..69eb3a49d 100644
--- a/tasmota/language/vi_VN.h
+++ b/tasmota/language/vi_VN.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/zh_CN.h b/tasmota/language/zh_CN.h
index 30332b22b..e01f62177 100644
--- a/tasmota/language/zh_CN.h
+++ b/tasmota/language/zh_CN.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/language/zh_TW.h b/tasmota/language/zh_TW.h
index f9aebfe20..3031041ae 100644
--- a/tasmota/language/zh_TW.h
+++ b/tasmota/language/zh_TW.h
@@ -711,6 +711,7 @@
 #define D_SENSOR_CSE7766_TX    "CSE7766 Tx"
 #define D_SENSOR_CSE7766_RX    "CSE7766 Rx"
 #define D_SENSOR_BL0939_RX     "BL0939 Rx"
+#define D_SENSOR_BL0942_RX     "BL0942 Rx"
 #define D_SENSOR_PN532_TX      "PN532 Tx"
 #define D_SENSOR_PN532_RX      "PN532 Rx"
 #define D_SENSOR_SM16716_CLK   "SM16716 CLK"
diff --git a/tasmota/tasmota_template.h b/tasmota/tasmota_template.h
index e8ba6c5f2..f363d068f 100644
--- a/tasmota/tasmota_template.h
+++ b/tasmota/tasmota_template.h
@@ -172,7 +172,8 @@ enum UserSelectablePins {
   GPIO_MCP2515_CS,                     // MCP2515 Chip Select
   GPIO_HRG15_TX, GPIO_HRG15_RX,        // Hydreon RG-15 rain sensor serial interface
   GPIO_VINDRIKTNING_RX,                // IKEA VINDRIKTNING Serial interface
-  GPIO_BL0939_RX,      // BL0939 Serial interface (Dual R3 v2)
+  GPIO_BL0939_RX,                      // BL0939 Serial interface (Dual R3 v2)
+  GPIO_BL0942_RX,                      // BL0942 Serial interface
   GPIO_SENSOR_END };
 
 enum ProgramSelectablePins {
@@ -365,7 +366,8 @@ const char kSensorNames[] PROGMEM =
   D_SENSOR_MCP2515_CS "|"
   D_SENSOR_HRG15_TX "|" D_SENSOR_HRG15_RX "|"
   D_SENSOR_VINDRIKTNING_RX "|"
-  D_SENSOR_BL0939_RX
+  D_SENSOR_BL0939_RX "|"
+  D_SENSOR_BL0942_RX
   ;
 
 const char kSensorNamesFixed[] PROGMEM =
@@ -697,8 +699,9 @@ const uint16_t kGpioNiceList[] PROGMEM = {
   AGPIO(GPIO_LE01MR_RX),     // F7F LE-01MR energy meter rx pin
 #endif // IFDEF:USE_LE01MR
 #if defined(USE_BL0940) || defined(USE_BL09XX)
-  AGPIO(GPIO_BL0939_RX),      // BL0939 Serial interface (Dual R3 v2)
+  AGPIO(GPIO_BL0939_RX),     // BL0939 Serial interface (Dual R3 v2)
   AGPIO(GPIO_BL0940_RX),     // BL0940 Serial interface
+  AGPIO(GPIO_BL0942_RX),     // BL0940 Serial interface
 #endif
 #ifdef USE_IEM3000
   AGPIO(GPIO_IEM3000_TX),    // IEM3000 Serial interface
diff --git a/tasmota/xnrg_14_bl09xx.ino b/tasmota/xnrg_14_bl09xx.ino
index db064af6a..e158a8c55 100644
--- a/tasmota/xnrg_14_bl09xx.ino
+++ b/tasmota/xnrg_14_bl09xx.ino
@@ -37,6 +37,8 @@
 
 #define XNRG_14                     14
 
+//#define DEBUG_BL09XX
+
 #define BL0939_PREF                 713       // =(4046*1*0,51*1000)/(1,218*1,218*(390*5+0,51)) = 713,105
 #define BL0939_UREF                 17159     // =(79931*0,51*1000)/(1,218*(390*5+0,51)) = 17158,92
 #define BL0939_IREF                 266013    // =(324004*1)/1,218 = 266013,14
@@ -45,15 +47,23 @@
 #define BL0940_UREF                 33000
 #define BL0940_IREF                 275000
 
+#define BL0942_PREF                 596
+#define BL0942_UREF                 15187
+#define BL0942_IREF                 251213
+
 #define BL09XX_PULSES_NOT_INITIALIZED  -1
 
-#define BL09XX_BUFFER_SIZE          36
+#define BL0939_BUFFER_SIZE          36
+#define BL0940_BUFFER_SIZE          36
+#define BL0942_BUFFER_SIZE          23
 
 #define BL0939_MODEL                39
 #define BL0940_MODEL                40
+#define BL0942_MODEL                42
 
 #define BL0939_ADDRESS              0x05
 #define BL0940_ADDRESS              0x00
+#define BL0942_ADDRESS              0x08
 
 #define BL09XX_WRITE_COMMAND        0xA0  // 0xA8 according to documentation
 #define BL09XX_REG_I_FAST_RMS_CTRL  0x10
@@ -79,22 +89,26 @@ struct BL09XX {
   long cf_pulses[2] = { 0, };
   long cf_pulses_last_time[2] = { BL09XX_PULSES_NOT_INITIALIZED, BL09XX_PULSES_NOT_INITIALIZED};
   float temperature;
-  int byte_counter = 0;
   uint16_t tps1 = 0;
   uint8_t *rx_buffer = nullptr;
-  uint8_t address;
-  uint8_t model;
+  uint8_t buffer_size = 0;
+  uint8_t byte_counter = 0;
+  uint8_t address = 0;
+  uint8_t model = 0;
+  uint8_t rx_pin;
   bool received = false;
 } Bl09XX;
 
-const uint8_t bl09xx_init[5][6] = {
-  { BL09XX_WRITE_COMMAND, BL09XX_REG_SOFT_RESET,      0x5A, 0x5A, 0x5A, 0x38 },   // Reset to default
-  { BL09XX_WRITE_COMMAND, BL09XX_REG_USR_WRPROT,      0x55, 0x00, 0x00, 0xF0 },   // Enable User Operation Write
-  { BL09XX_WRITE_COMMAND, BL09XX_REG_MODE,            0x00, 0x10, 0x00, 0x37 },   // 0x0100 = CF_UNABLE energy pulse, AC_FREQ_SEL 50Hz, RMS_UPDATE_SEL 800mS
-  { BL09XX_WRITE_COMMAND, BL09XX_REG_TPS_CTRL,        0xFF, 0x47, 0x00, 0xFE },   // 0x47FF = Over-current and leakage alarm on, Automatic temperature measurement, Interval 100mS
-  { BL09XX_WRITE_COMMAND, BL09XX_REG_I_FAST_RMS_CTRL, 0x1C, 0x18, 0x00, 0x1B }};  // 0x181C = Half cycle, Fast RMS threshold 6172
+const uint8_t bl09xx_init[5][4] = {
+  { BL09XX_REG_SOFT_RESET,      0x5A, 0x5A, 0x5A },   // Reset to default
+  { BL09XX_REG_USR_WRPROT,      0x55, 0x00, 0x00 },   // Enable User Operation Write
+  { BL09XX_REG_MODE,            0x00, 0x10, 0x00 },   // 0x0100 = CF_UNABLE energy pulse, AC_FREQ_SEL 50Hz, RMS_UPDATE_SEL 800mS
+  { BL09XX_REG_TPS_CTRL,        0xFF, 0x47, 0x00 },   // 0x47FF = Over-current and leakage alarm on, Automatic temperature measurement, Interval 100mS
+  { BL09XX_REG_I_FAST_RMS_CTRL, 0x1C, 0x18, 0x00 }  // 0x181C = Half cycle, Fast RMS threshold 6172
+};
 
-void Bl09XXReceived(void) {
+
+bool Bl09XXDecode3940(void) {
   //  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
   // Sample from BL0940 (single channel)
   // 55 F2 03 00 00 00 00 7E 02 00 D4 B0 72 AC 01 00 00 00 00 02 01 00 00 00 00 00 00 00 BA 01 00 FE 03 00 83
@@ -114,8 +128,8 @@ void Bl09XXReceived(void) {
   if ((Bl09XX.rx_buffer[0] != BL09XX_PACKET_HEADER) ||                                                   // Bad header
       (Bl09XX.tps1 && ((tps1 < (Bl09XX.tps1 -10)) || (tps1 > (Bl09XX.tps1 +10))))                        // Invalid temperature change
      ) {
-    AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("BL9: Invalid data"));
-    return;
+    AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("BL9: Invalid data hd=%02X, tps1:%d"), Bl09XX.rx_buffer[0], tps1);
+    return false;
   }
 
   Bl09XX.tps1 = tps1;
@@ -139,21 +153,72 @@ void Bl09XXReceived(void) {
     Bl09XX.cf_pulses[1] = abs(tmp >> 8);                                                                    // CFB_CNT unsigned
   }
 
+#ifdef DEBUG_BL09XX
   AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("BL9: U %d, I %d/%d, P %d/%d, C %d/%d, T %d"),
     Bl09XX.voltage, Bl09XX.current[0], Bl09XX.current[1], Bl09XX.power[0], Bl09XX.power[1], Bl09XX.cf_pulses[0], Bl09XX.cf_pulses[1], Bl09XX.tps1);
+#endif
 
+  return true;
+}
+
+bool Bl09XXDecode42(void) {
+  //  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22
+  // Hd Current- Voltage- IFRms--- Power--- CF------ Freq- 00 St 00 00 Ck
+  // 55 A3 B9 00 9E 4C 36 93 43 00 F4 98 FF 99 00 00 16 4E 00 01 01 00
+  // U 3558558, I 47523, P 26380, C 153
+  // 55 AC B9 00 79 4D 36 C4 43 00 EF 98 FF 99 00 00 16 4E 00 01 01 00
+  // U 3558777, I 47532, P 26385, C 153
+  // 55 40 BA 00 2D 50 36 FE 43 00 96 98 FF 99 00 00 16 4E 00 01 01 00
+  // U 3559469, I 47680, P 26474, C 153
+  // 55 91 B9 00 33 4C 36 FB 43 00 FC 98 FF 99 00 00 1E 4E 00 21 01 00
+  // U 3558451, I 47505, P 26372, C 153
+  // 55 AF B9 00 05 51 36 D1 43 00 E4 98 FF 99 00 00 1E 4E 00 21 01 00
+  // U 3559685, I 47535, P 26396, C 153
+  // 55 21 BA 00 3A 5E 36 10 44 00 8B 98 FF 99 00 00 16 4E 00 01 01 00
+  // U 3563066, I 47649, P 26485, C 153
+  // 55 BE B9 00 B2 55 36 9D 42 00 D7 98 FF 99 00 00 1E 4E 00 21 01 00
+  // U 3560882, I 47550, P 26409, C 153
+  // All above from a single test with a 40W buld on 230V
+
+  if (Bl09XX.rx_buffer[0] != BL09XX_PACKET_HEADER) {
+    AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("BL9: Invalid data hd=%02X"), Bl09XX.rx_buffer[0]);
+    return false;
+  }
+
+  Bl09XX.voltage    = Bl09XX.rx_buffer[6] << 16 | Bl09XX.rx_buffer[5] << 8 | Bl09XX.rx_buffer[4];           // V_RMS unsigned
+
+  int32_t tmp;
+  Bl09XX.current[0] = Bl09XX.rx_buffer[3]  << 16 | Bl09XX.rx_buffer[2]  << 8 | Bl09XX.rx_buffer[1];         // IA_RMS unsigned
+  tmp = Bl09XX.rx_buffer[12] << 24 | Bl09XX.rx_buffer[11] << 16 | Bl09XX.rx_buffer[10] << 8;                // WATT_A signed
+  Bl09XX.power[0] = abs(tmp >> 8);                                                                          // WATT_A unsigned
+  tmp = Bl09XX.rx_buffer[15] << 24 | Bl09XX.rx_buffer[14] << 16 | Bl09XX.rx_buffer[13] << 8;                // CFA_CNT signed
+  Bl09XX.cf_pulses[0] = abs(tmp >> 8);                                                                      // CFA_CNT unsigned
+
+#ifdef DEBUG_BL09XX
+  AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("BL9: U %d, I %d, P %d, C %d"),
+    Bl09XX.voltage, Bl09XX.current[0], Bl09XX.power[0], Bl09XX.cf_pulses[0]);
+#endif
+
+  return true;
+}
+
+void Bl09XXUpdateEnergy() {
   if (Energy.power_on) {  // Powered on
     Energy.voltage[0] = (float)Bl09XX.voltage / Settings->energy_voltage_calibration;
-    //AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("BL9: Voltage %f, Temp %f"), Energy.voltage[0], Bl09XX.temperature);
+    AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("BL9: Voltage %f, Temp %f"), Energy.voltage[0], Bl09XX.temperature);
     for (uint32_t chan = 0; chan < Energy.phase_count; chan++) {
       if (Bl09XX.power[chan] > Settings->energy_power_calibration) {                                   // We need at least 1W
         Energy.active_power[chan] = (float)Bl09XX.power[chan] / Settings->energy_power_calibration;
         Energy.current[chan] = (float)Bl09XX.current[chan] / Settings->energy_current_calibration;
-        //AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("BL9: Chan[%d] I %f, P %f"), chan, Energy.current[chan], Energy.active_power[chan]);
+#ifdef DEBUG_BL09XX
+        AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("BL9: Chan[%d] I %f, P %f"), chan, Energy.current[chan], Energy.active_power[chan]);
+#endif
       } else {
         Energy.active_power[chan] = 0;
         Energy.current[chan] = 0;
-        //AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("BL9: Chan[%d] I zero, P zero"), chan);
+#ifdef DEBUG_BL09XX
+        AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("BL9: Chan[%d] I zero, P zero"), chan);
+#endif
       }
     }
   } else {  // Powered off
@@ -163,7 +228,6 @@ void Bl09XXReceived(void) {
     Energy.current[0] = Energy.current[1] = 0;
   }
 }
-
 void Bl09XXSerialInput(void) {
   while (Bl09XXSerial->available()) {
     yield();
@@ -174,22 +238,29 @@ void Bl09XXSerialInput(void) {
     }
     if (Bl09XX.received) {
       Bl09XX.rx_buffer[Bl09XX.byte_counter++] = serial_in_byte;
-      if (BL09XX_BUFFER_SIZE == Bl09XX.byte_counter) {
-
-        AddLogBuffer(LOG_LEVEL_DEBUG_MORE, Bl09XX.rx_buffer, BL09XX_BUFFER_SIZE -1);
+      if (Bl09XX.buffer_size == Bl09XX.byte_counter) {
 
+#ifdef DEBUG_BL09XX
+        AddLogBuffer(LOG_LEVEL_DEBUG_MORE, Bl09XX.rx_buffer, Bl09XX.buffer_size -1);
+#endif
         uint8_t checksum = BL09XX_READ_COMMAND | Bl09XX.address;
-        for (uint32_t i = 0; i < BL09XX_BUFFER_SIZE -2; i++) { checksum += Bl09XX.rx_buffer[i]; }
+        for (uint32_t i = 0; i < Bl09XX.buffer_size -2; i++) { checksum += Bl09XX.rx_buffer[i]; }
         checksum ^= 0xFF;
-        if (checksum == Bl09XX.rx_buffer[34]) {
+        if (checksum == Bl09XX.rx_buffer[Bl09XX.buffer_size-1]) {
           Energy.data_valid[0] = 0;
-          Bl09XXReceived();
+          bool ok;
+          if (BL0942_MODEL == Bl09XX.model)
+            ok = Bl09XXDecode42();
+          else
+            ok = Bl09XXDecode3940();
+          if (ok)
+            Bl09XXUpdateEnergy();
           Bl09XX.received = false;
           return;
         } else {
-          //AddLog(LOG_LEVEL_DEBUG, PSTR("BL9: " D_CHECKSUM_FAILURE "received 0x%02X instead of 0x%02X"), Bl09XX.rx_buffer[34], checksum);
+          AddLog(LOG_LEVEL_DEBUG, PSTR("BL9: " D_CHECKSUM_FAILURE "received 0x%02X instead of 0x%02X"), Bl09XX.rx_buffer[34], checksum);
           do {  // Sync buffer with data (issue #1907 and #3425)
-            memmove(Bl09XX.rx_buffer, Bl09XX.rx_buffer +1, BL09XX_BUFFER_SIZE -1);
+            memmove(Bl09XX.rx_buffer, Bl09XX.rx_buffer +1, Bl09XX.buffer_size -1);
             Bl09XX.byte_counter--;
           } while ((Bl09XX.byte_counter > 1) && (BL09XX_PACKET_HEADER != Bl09XX.rx_buffer[0]));
           if (BL09XX_PACKET_HEADER != Bl09XX.rx_buffer[0]) {
@@ -225,55 +296,88 @@ void Bl09XXEverySecond(void) {
   Bl09XXSerial->write(BL09XX_FULL_PACKET);
 }
 
-void Bl09XXSnsInit(void) {
+void Bl09XXInit(void) {
   // Software serial init needs to be done here as earlier (serial) interrupts may lead to Exceptions
-  int rx_pin = Pin((BL0939_MODEL == Bl09XX.model) ? GPIO_BL0939_RX : GPIO_BL0940_RX);
-  Bl09XXSerial = new TasmotaSerial(rx_pin, Pin(GPIO_TXD), 1);
+  Bl09XXSerial = new TasmotaSerial(Bl09XX.rx_pin, Pin(GPIO_TXD), 1);
   if (Bl09XXSerial->begin(4800, 1)) {
     if (Bl09XXSerial->hardwareSerial()) {
       ClaimSerial();
     }
     if (HLW_UREF_PULSE == Settings->energy_voltage_calibration) {
-      Settings->energy_voltage_calibration = (BL0939_MODEL == Bl09XX.model) ? BL0939_UREF : BL0940_UREF;
-      Settings->energy_current_calibration = (BL0939_MODEL == Bl09XX.model) ? BL0939_IREF : BL0940_IREF;
-      Settings->energy_power_calibration = (BL0939_MODEL == Bl09XX.model) ? BL0939_PREF : BL0940_PREF;
+      switch (Bl09XX.model) {
+        case BL0939_MODEL:
+          Settings->energy_voltage_calibration = BL0939_UREF;
+          Settings->energy_current_calibration = BL0939_IREF;
+          Settings->energy_power_calibration   = BL0939_PREF;
+          break;
+        case BL0940_MODEL:
+          Settings->energy_voltage_calibration = BL0940_UREF;
+          Settings->energy_current_calibration = BL0940_IREF;
+          Settings->energy_power_calibration   = BL0940_PREF;
+          break;
+        case BL0942_MODEL:
+        default:
+          Settings->energy_voltage_calibration = BL0942_UREF;
+          Settings->energy_current_calibration = BL0942_IREF;
+          Settings->energy_power_calibration   = BL0942_PREF;
+          break;
+      }
     }
     if ((BL0940_MODEL == Bl09XX.model) && (Settings->energy_current_calibration < (BL0940_IREF / 20))) {
       Settings->energy_current_calibration *= 100;
     }
 
-    Energy.use_overtemp = true;                 // Use global temperature for overtemp detection
-
-    for (uint32_t i = 0; i < 5; i++) {
-      Bl09XXSerial->write(bl09xx_init[i][0] | Bl09XX.address);
-      for (uint32_t j = 1; j < 6; j++) {
-        Bl09XXSerial->write(bl09xx_init[i][j]);
-//        Bl09XXSerial->write(pgm_read_byte(bl09xx_init + (6 * i) + j));  // Wrong byte order!
+    if (BL0942_MODEL != Bl09XX.model) {
+#ifdef DEBUG_BL09XX
+      AddLog(LOG_LEVEL_DEBUG, PSTR("BL9: Send Init string for model BL09%02d"), Bl09XX.model);
+#endif
+      Energy.use_overtemp = true;                 // Use global temperature for overtemp detection
+      for (uint32_t i = 0; i < 5; i++) {
+        uint8_t crc, byte;
+        crc = byte = BL09XX_WRITE_COMMAND | Bl09XX.address;
+        Bl09XXSerial->write(byte);
+        for (uint32_t j = 0; j < 4; j++) {
+          crc += byte = bl09xx_init[i][j];
+          Bl09XXSerial->write(byte);
+        }
+        Bl09XXSerial->write(0xFF ^ crc);
+        delay(1);
       }
-      delay(1);
+    } else {
+      Energy.use_overtemp = false;                 // Use global temperature for overtemp detection
     }
-
   } else {
     TasmotaGlobal.energy_driver = ENERGY_NONE;
   }
 }
 
-void Bl09XXDrvInit(void) {
+void Bl09XXPreInit(void) {
   if (PinUsed(GPIO_BL0939_RX) && PinUsed(GPIO_TXD)) {
     Bl09XX.model = BL0939_MODEL;
     Bl09XX.address = BL0939_ADDRESS;
+    Bl09XX.buffer_size = BL0939_BUFFER_SIZE;
+    Bl09XX.rx_pin = Pin(GPIO_BL0939_RX);
   } else if (PinUsed(GPIO_BL0940_RX) && PinUsed(GPIO_TXD)) {
     Bl09XX.model = BL0940_MODEL;
     Bl09XX.address = BL0940_ADDRESS;
+    Bl09XX.buffer_size = BL0940_BUFFER_SIZE;
+    Bl09XX.rx_pin = Pin(GPIO_BL0940_RX);
+  }
+   else if (PinUsed(GPIO_BL0942_RX) && PinUsed(GPIO_TXD)) {
+    Bl09XX.model = BL0942_MODEL;
+    Bl09XX.address = BL0942_ADDRESS;
+    Bl09XX.buffer_size = BL0942_BUFFER_SIZE;
+    Bl09XX.rx_pin = Pin(GPIO_BL0942_RX);
   }
   if (Bl09XX.model) {
-    Bl09XX.rx_buffer = (uint8_t*)(malloc(BL09XX_BUFFER_SIZE));
+    Bl09XX.rx_buffer = (uint8_t*)(malloc(Bl09XX.buffer_size));
     if (Bl09XX.rx_buffer != nullptr) {
       Energy.voltage_common = true;               // Use common voltage
       Energy.frequency_common = true;             // Use common frequency
       Energy.use_overtemp = true;                 // Use global temperature for overtemp detection
       Energy.phase_count = (BL0939_MODEL == Bl09XX.model) ? 2 : 1;  // Handle two channels as two phases
       TasmotaGlobal.energy_driver = XNRG_14;
+      AddLog(LOG_LEVEL_DEBUG,PSTR("BL9: Enabling BL09%02d"), Bl09XX.model);
     }
   }
 }
@@ -305,21 +409,22 @@ bool Bl09XXCommand(void) {
 }
 
 void Bl09XXShow(bool json) {
-  if (json) {
-    ResponseAppend_P(JSON_SNS_F_TEMP, "BL09XX", Settings->flag2.temperature_resolution, &Bl09XX.temperature);
-    if (0 == TasmotaGlobal.tele_period) {
+  if (BL0942_MODEL != Bl09XX.model) {
+    if (json) {
+      ResponseAppend_P(JSON_SNS_F_TEMP, "BL09XX", Settings->flag2.temperature_resolution, &Bl09XX.temperature);
+      if (0 == TasmotaGlobal.tele_period) {
 #ifdef USE_DOMOTICZ
-      DomoticzFloatSensor(DZ_TEMP, Bl09XX.temperature);
+        DomoticzFloatSensor(DZ_TEMP, Bl09XX.temperature);
 #endif  // USE_DOMOTICZ
 #ifdef USE_KNX
-      KnxSensor(KNX_TEMPERATURE, Bl09XX.temperature);
+        KnxSensor(KNX_TEMPERATURE, Bl09XX.temperature);
 #endif // USE_KNX
-    }
+      }
 #ifdef USE_WEBSERVER
-  } else {
-    WSContentSend_Temp("", Bl09XX.temperature);
+    } else {
+      WSContentSend_Temp("", Bl09XX.temperature);
 #endif  // USE_WEBSERVER
-
+    }
   }
 }
 
@@ -349,10 +454,10 @@ bool Xnrg14(uint8_t function) {
       result = Bl09XXCommand();
       break;
     case FUNC_INIT:
-      Bl09XXSnsInit();
+      Bl09XXInit();
       break;
     case FUNC_PRE_INIT:
-      Bl09XXDrvInit();
+      Bl09XXPreInit();
       break;
   }
   return result;