From 8c60a62161bf79d031cfb702b04fb3448ce6e8b1 Mon Sep 17 00:00:00 2001
From: gdsports <31050875+gdsports@users.noreply.github.com>
Date: Tue, 28 Sep 2021 13:29:41 -0700
Subject: [PATCH] Fix analogRead of adc2 channels

See also #5658 and #5671
---
 cores/esp32/esp32-hal-adc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cores/esp32/esp32-hal-adc.c b/cores/esp32/esp32-hal-adc.c
index 0530f1d84fb..664af9b4711 100644
--- a/cores/esp32/esp32-hal-adc.c
+++ b/cores/esp32/esp32-hal-adc.c
@@ -46,7 +46,11 @@ static uint8_t __analogVRefPin = 0;
 #endif
 
 static uint8_t __analogAttenuation = 3;//11db
+#if CONFIG_IDF_TARGET_ESP32S2
+static uint8_t __analogWidth = 4;//13 bits
+#else
 static uint8_t __analogWidth = 3;//12 bits
+#endif
 static uint8_t __analogClockDiv = 1;
 static adc_attenuation_t __pin_attenuation[SOC_GPIO_PIN_COUNT];