From 76e202739df1523638febb69a98827b49c4e2e87 Mon Sep 17 00:00:00 2001
From: Daniel Ansorregui <mailszeros@gmail.com>
Date: Sat, 11 Dec 2021 16:14:38 +0000
Subject: [PATCH] Set all pins to INPUT before deep sleep

* Some pins otherwise are left as output
  And their value is kept in deep sleep
  This can cause power usage in deep sleep
* From my measurements 0.13mA
  Or, 3mAh / day extra usage
---
 src/Watchy.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Watchy.cpp b/src/Watchy.cpp
index a334f5b..1df910f 100644
--- a/src/Watchy.cpp
+++ b/src/Watchy.cpp
@@ -41,6 +41,10 @@ void Watchy::init(String datetime){
 }
 
 void Watchy::deepSleep(){
+  // Set all pins to input to avoid power leaking out
+  for(int i=0; i<48; i++) {
+    pinMode(i, INPUT);
+  }
   esp_sleep_enable_ext0_wakeup(RTC_PIN, 0); //enable deep sleep wake on RTC interrupt
   esp_sleep_enable_ext1_wakeup(BTN_PIN_MASK, ESP_EXT1_WAKEUP_ANY_HIGH); //enable deep sleep wake on button press
   esp_deep_sleep_start();