From 96d6ffefad9d9905bb3bc6b513dbdf56d775adc8 Mon Sep 17 00:00:00 2001
From: Florent <florent@frizoncorrea.fr>
Date: Thu, 10 Apr 2025 22:00:25 +0200
Subject: [PATCH] t1000 : power bat sensor only when necessary

---
 src/helpers/nrf52/T1000eBoard.h | 3 +++
 variants/t1000-e/variant.cpp    | 4 ++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/helpers/nrf52/T1000eBoard.h b/src/helpers/nrf52/T1000eBoard.h
index d71c829b..9511706b 100644
--- a/src/helpers/nrf52/T1000eBoard.h
+++ b/src/helpers/nrf52/T1000eBoard.h
@@ -29,9 +29,12 @@ public:
 
   uint16_t getBattMilliVolts() override {
   #ifdef BATTERY_PIN
+    digitalWrite(PIN_3V3_EN, HIGH);
     analogReference(AR_INTERNAL_3_0);
     analogReadResolution(12);
+    delay(10);
     float volts = (analogRead(BATTERY_PIN) * ADC_MULTIPLIER * AREF_VOLTAGE) / 4096;
+    digitalWrite(PIN_3V3_EN, LOW);
 
     analogReference(AR_DEFAULT);  // put back to default
     analogReadResolution(10);
diff --git a/variants/t1000-e/variant.cpp b/variants/t1000-e/variant.cpp
index a71a831b..f17b3a8d 100644
--- a/variants/t1000-e/variant.cpp
+++ b/variants/t1000-e/variant.cpp
@@ -83,13 +83,13 @@ void initVariant()
   pinMode(GPS_RTC_INT, OUTPUT);
   pinMode(LED_PIN, OUTPUT);
 
-  digitalWrite(PIN_3V3_EN, HIGH);
+  digitalWrite(PIN_3V3_EN, LOW);
   digitalWrite(PIN_3V3_ACC_EN, LOW);
   digitalWrite(BUZZER_EN, LOW);
   digitalWrite(SENSOR_EN, LOW);
   digitalWrite(GPS_EN, LOW);
   digitalWrite(GPS_RESET, LOW);
-  digitalWrite(GPS_VRTC_EN, HIGH);
+  digitalWrite(GPS_VRTC_EN, LOW);
   digitalWrite(GPS_SLEEP_INT, HIGH);
   digitalWrite(GPS_RTC_INT, LOW);
   digitalWrite(LED_PIN, LOW);