From c6c70dca7680a4f534f6506a4e17aa85702036f6 Mon Sep 17 00:00:00 2001
From: Christophe Robillard <christophe@robiweb.net>
Date: Mon, 22 Dec 2025 21:10:34 +0100
Subject: [PATCH] power rfid only when not sleeping

---
 the-cup.ino | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/the-cup.ino b/the-cup.ino
index 607e839..ea4786e 100644
--- a/the-cup.ino
+++ b/the-cup.ino
@@ -21,6 +21,7 @@
 
 #define LED_PIN LED_BUILTIN
 #define SS_PIN SDA
+#define RC522_POWER_PIN 1
 #define SLEEP_DURATION 1
 
 #define RGB_BRIGHTNESS 4 // Change neopixel brightness (max 255)
@@ -74,6 +75,8 @@ void setup() {
 
   pinMode(LED_PIN, OUTPUT);
 
+  pinMode(RC522_POWER_PIN, OUTPUT);
+  digitalWrite(RC522_POWER_PIN, HIGH);
   reader.PCD_Init(); // Init each MFRC522 card.
 }
 
@@ -85,6 +88,7 @@ void loop() {
   }
   else {
     delay(200);
+    digitalWrite(RC522_POWER_PIN, LOW);
     ESP.deepSleep(SLEEP_DURATION * 1000000);
   }
 }