From 15c5e8c80646adb8a90a183322f31f042a3ead2f Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott@tannewt.org>
Date: Fri, 6 Oct 2023 15:55:43 -0700
Subject: [PATCH] Fix pin adc unit check

IDF5 made 0 valid. Use the NO_ADC macro instead
---
 ports/espressif/common-hal/analogio/AnalogIn.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ports/espressif/common-hal/analogio/AnalogIn.c b/ports/espressif/common-hal/analogio/AnalogIn.c
index ea322690f7..f3950e7f19 100644
--- a/ports/espressif/common-hal/analogio/AnalogIn.c
+++ b/ports/espressif/common-hal/analogio/AnalogIn.c
@@ -63,7 +63,7 @@
 
 void common_hal_analogio_analogin_construct(analogio_analogin_obj_t *self,
     const mcu_pin_obj_t *pin) {
-    if (pin->adc_index == 0 || pin->adc_channel == NO_ADC_CHANNEL) {
+    if (pin->adc_index == NO_ADC || pin->adc_channel == NO_ADC_CHANNEL) {
         raise_ValueError_invalid_pin();
     }
     common_hal_mcu_pin_claim(pin);