From 4e11af1da01eff2485ce54e2d77cad9ef5014ec8 Mon Sep 17 00:00:00 2001
From: Teo-CD <teocd.perso@outlook.fr>
Date: Fri, 15 Dec 2023 21:31:34 +0000
Subject: [PATCH] =?UTF-8?q?Arduino:=20Use=20400kHz=20clock=20for=20I=C2=B2?=
 =?UTF-8?q?C?=
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The EEPROM in the cartridges support 'Fast I²C' at 400kHz.
Testing it out, it seems to work fine despite the high pull-ups,
so update the Arduino code to enjoy the 4x speed-up !
---
 Arduino/ReceiveCart/ReceiveCart.ino | 1 +
 Arduino/SendCart/SendCart.ino       | 1 +
 2 files changed, 2 insertions(+)

diff --git a/Arduino/ReceiveCart/ReceiveCart.ino b/Arduino/ReceiveCart/ReceiveCart.ino
index b1a41d8..4534669 100644
--- a/Arduino/ReceiveCart/ReceiveCart.ino
+++ b/Arduino/ReceiveCart/ReceiveCart.ino
@@ -45,6 +45,7 @@ void setup() {
   Serial.begin(115200);
   pinMode(LED_BUILTIN, OUTPUT);
   Wire.begin();
+  Wire.setClock(400000);
 }
 
 void loop() {
diff --git a/Arduino/SendCart/SendCart.ino b/Arduino/SendCart/SendCart.ino
index 54de478..6bb0292 100644
--- a/Arduino/SendCart/SendCart.ino
+++ b/Arduino/SendCart/SendCart.ino
@@ -33,6 +33,7 @@ void setup() {
   Serial.begin(115200);
   pinMode(LED_BUILTIN, OUTPUT);
   Wire.begin();
+  Wire.setClock(400000);
 }
 
 /*