From 482bb8ed71db70433667daeddd38d5397f36b88d Mon Sep 17 00:00:00 2001
From: Oleg Kalachev <okalachev@gmail.com>
Date: Wed, 17 Jan 2024 15:18:11 +0300
Subject: [PATCH] Disable ESP32 reset on low voltage

---
 flix/flix.ino | 1 +
 flix/util.ino | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/flix/flix.ino b/flix/flix.ino
index 18d68a9..fd692b6 100644
--- a/flix/flix.ino
+++ b/flix/flix.ino
@@ -36,6 +36,7 @@ float motors[4]; // normalized motors thrust in range [-1..1]
 void setup() {
 	Serial.begin(SERIAL_BAUDRATE);
 	Serial.println("Initializing flix");
+	disableBrownOut();
 	setupLED();
 	setupMotors();
 	setLED(true);
diff --git a/flix/util.ino b/flix/util.ino
index f25c40f..97b9e85 100644
--- a/flix/util.ino
+++ b/flix/util.ino
@@ -4,6 +4,8 @@
 // Utility functions
 
 #include "math.h"
+#include <soc/soc.h>
+#include <soc/rtc_cntl_reg.h>
 
 float mapf(long x, long in_min, long in_max, float out_min, float out_max) {
 	return (float)(x - in_min) * (out_max - out_min) / (float)(in_max - in_min) + out_min;
@@ -41,3 +43,8 @@ void printArray(T arr[], int size) {
 	}
 	Serial.println("}");
 }
+
+// Disable reset on low voltage
+void disableBrownOut() {
+	WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0);
+}