diff --git a/arduino/i2c_master_register_read.ino b/arduino/i2c_master_register_read.ino
deleted file mode 100644
index a2a6f789..00000000
--- a/arduino/i2c_master_register_read.ino
+++ /dev/null
@@ -1,55 +0,0 @@
-// Wire Master Reader
-// by Nicholas Zambetti <http://www.zambetti.com>
-
-// Demonstrates use of the Wire library
-// Reads data from an I2C/TWI slave device
-// Refer to the "Wire Slave Sender" example for use with this
-
-// Created 29 March 2006
-
-// This example code is in the public domain.
-
-// modified by Alan Johnston to show reading registers 0 - 3
-// code based on https://forum.arduino.cc/index.php?topic=211587.0
-//
-// This code is to simulate the Raspberry Pi acting as I2C bus master 
-
-#include <Wire.h>
-#define I2C_ADDRESS 0x4B
-#define REGISTER_0 0x00
-#define REGISTER_1 0x01
-#define REGISTER_2 0x02
-#define REGISTER_3 0x03
-
-uint8_t reg; // I2C read register
-
-void setup() {
-  Wire.begin();        // join i2c bus (address optional for master)
-  Serial.begin(9600);  // start serial for output
-  pinMode(LED_BUILTIN, OUTPUT);
-  Serial.println("Starting");
-}
-
-void loop() {
-  for (reg=0; reg < 4; reg++) {
-    delay(5000);
-    digitalWrite(LED_BUILTIN, HIGH);
-    Wire.beginTransmission(I2C_ADDRESS);
-    Wire.write(reg);
-    Wire.endTransmission();
-    delay(100);
-    digitalWrite(LED_BUILTIN, LOW);
-  
-    
-    Wire.requestFrom(I2C_ADDRESS, 2);    // request 2 bytes from I2C device
-    byte LSB = Wire.read();
-    byte MSB = Wire.read();
-  
-    uint16_t register_value = ((MSB << 8) | LSB);
-    
-    Serial.print("Read ");
-    Serial.print(register_value, HEX); // display register value in HEXADECIMAL
-    Serial.print(" from register ");
-    Serial.println(reg);
-  }
-}