From cc7ad4afcaeff7f191d9056c6a7ce8bc07e0a637 Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Tue, 4 Jan 2022 17:41:47 +0100
Subject: [PATCH] Add experimental ADE7953 (Shelly EM) reset on restart
 (#14261)

---
 CHANGELOG.md                |  3 +++
 RELEASENOTES.md             |  1 +
 tasmota/xnrg_07_ade7953.ino | 11 ++++++++++-
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 73cdab574..25ff22862 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 ## [Unreleased] - Development
 
 ## [2022.01.1]
+### Added
+- Experimental ADE7953 (Shelly EM) reset on restart (#14261)
+
 ### Changed
 - PubSubClient library from v2.8.12 to v2.8.13
 - From Semantic Versioning (SemVer) to Calendar Versioning (CalVer)
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 6767ab925..2563a54b2 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -106,6 +106,7 @@ The latter links can be used for OTA upgrades too like ``OtaUrl http://ota.tasmo
 - PWM Dimmer two button support [#13993](https://github.com/arendst/Tasmota/issues/13993)
 - Device Group Send full status item [#14045](https://github.com/arendst/Tasmota/issues/14045)
 - Support for MAX7219 Dot Matrix displays [#14091](https://github.com/arendst/Tasmota/issues/14091)
+- Experimental ADE7953 (Shelly EM) reset on restart [#14261](https://github.com/arendst/Tasmota/issues/14261)
 - ESP32 support for TuyaMcu
 - ESP32 Berry features
 
diff --git a/tasmota/xnrg_07_ade7953.ino b/tasmota/xnrg_07_ade7953.ino
index a09e4f257..6205612be 100644
--- a/tasmota/xnrg_07_ade7953.ino
+++ b/tasmota/xnrg_07_ade7953.ino
@@ -236,7 +236,16 @@ void Ade7953DrvInit(void)
   if (PinUsed(GPIO_ADE7953_IRQ, GPIO_ANY)) {      // Irq on GPIO16 is not supported...
     uint32_t pin_irq = Pin(GPIO_ADE7953_IRQ, GPIO_ANY);
     pinMode(pin_irq, INPUT);                      // Related to resetPins() - Must be set to input
-    Ade7953.model = GetPin(pin_irq) - AGPIO(GPIO_ADE7953_IRQ);  // 0 .. 1 ;
+    Ade7953.model = GetPin(pin_irq) - AGPIO(GPIO_ADE7953_IRQ);  // 0 (Shelly 2.5), 1 (Shelly EM)
+
+    if (1 == Ade7953.model) {                     // Shelly EM
+      pinMode(16, OUTPUT);                        // Reset pin ADE7953
+      digitalWrite(16, 0);
+      delay(1);
+      digitalWrite(16, 1);
+      pinMode(16, INPUT);
+    }
+
     delay(100);                                   // Need 100mS to init ADE7953
     if (I2cSetDevice(ADE7953_ADDR)) {
       if (HLW_PREF_PULSE == Settings->energy_power_calibration) {