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diff --git a/digital-driver/firmware/TinyWire-master/TinyWireS/examples/attiny85_i2c_slave/attiny85_i2c_slave.ino b/digital-driver/firmware/TinyWire-master/TinyWireS/examples/attiny85_i2c_slave/attiny85_i2c_slave.ino
deleted file mode 100644
index df2532f..0000000
--- a/digital-driver/firmware/TinyWire-master/TinyWireS/examples/attiny85_i2c_slave/attiny85_i2c_slave.ino
+++ /dev/null
@@ -1,152 +0,0 @@
-/**
- * Example sketch for writing to and reading from a slave in transactional manner
- *
- * NOTE: You must not use delay() or I2C communications will fail, use tws_delay() instead (or preferably some smarter timing system)
- *
- * On write the first byte received is considered the register addres to modify/read
- * On each byte sent or read the register address is incremented (and it will loop back to 0)
- *
- * You can try this with the Arduino I2C REPL sketch at https://github.com/rambo/I2C/blob/master/examples/i2crepl/i2crepl.ino 
- * If you have bus-pirate remember that the older revisions do not like the slave streching the clock, this leads to all sorts of weird behaviour
- *
- * To read third value (register number 2 since counting starts at 0) send "[ 8 2 [ 9 r ]", value read should be 0xBE
- * If you then send "[ 9 r r r ]" you should get 0xEF 0xDE 0xAD as response (demonstrating the register counter looping back to zero)
- *
- * You need to have at least 8MHz clock on the ATTiny for this to work (and in fact I have so far tested it only on ATTiny85 @8MHz using internal oscillator)
- * Remember to "Burn bootloader" to make sure your chip is in correct mode 
- */
-
-
-/**
- * Pin notes by Suovula, see also http://hlt.media.mit.edu/?p=1229
- *
- * DIP and SOIC have same pinout, however the SOIC chips are much cheaper, especially if you buy more than 5 at a time
- * For nice breakout boards see https://github.com/rambo/attiny_boards
- *
- * Basically the arduino pin numbers map directly to the PORTB bit numbers.
- *
-// I2C
-arduino pin 0 = not(OC1A) = PORTB <- _BV(0) = SOIC pin 5 (I2C SDA, PWM)
-arduino pin 2 =           = PORTB <- _BV(2) = SOIC pin 7 (I2C SCL, Analog 1)
-// Timer1 -> PWM
-arduino pin 1 =     OC1A  = PORTB <- _BV(1) = SOIC pin 6 (PWM)
-arduino pin 3 = not(OC1B) = PORTB <- _BV(3) = SOIC pin 2 (Analog 3)
-arduino pin 4 =     OC1B  = PORTB <- _BV(4) = SOIC pin 3 (Analog 2)
- */
-#define I2C_SLAVE_ADDRESS 0x4 // the 7-bit address (remember to change this when adapting this example)
-// Get this from https://github.com/rambo/TinyWire
-#include <TinyWireS.h>
-// The default buffer size, Can't recall the scope of defines right now
-#ifndef TWI_RX_BUFFER_SIZE
-#define TWI_RX_BUFFER_SIZE ( 16 )
-#endif
-
-
-volatile uint8_t i2c_regs[] =
-{
-    0xDE, 
-    0xAD, 
-    0xBE, 
-    0xEF, 
-};
-// Tracks the current register pointer position
-volatile byte reg_position;
-const byte reg_size = sizeof(i2c_regs);
-
-/**
- * This is called for each read request we receive, never put more than one byte of data (with TinyWireS.send) to the 
- * send-buffer when using this callback
- */
-void requestEvent()
-{  
-    TinyWireS.send(i2c_regs[reg_position]);
-    // Increment the reg position on each read, and loop back to zero
-    reg_position++;
-    if (reg_position >= reg_size)
-    {
-        reg_position = 0;
-    }
-}
-
-// TODO: Either update this to use something smarter for timing or remove it alltogether
-void blinkn(uint8_t blinks)
-{
-    digitalWrite(3, HIGH);
-    while(blinks--)
-    {
-        digitalWrite(3, LOW);
-        tws_delay(50);
-        digitalWrite(3, HIGH);
-        tws_delay(100);
-    }
-}
-
-/**
- * The I2C data received -handler
- *
- * This needs to complete before the next incoming transaction (start, data, restart/stop) on the bus does
- * so be quick, set flags for long running tasks to be called from the mainloop instead of running them directly,
- */
-void receiveEvent(uint8_t howMany)
-{
-    if (howMany < 1)
-    {
-        // Sanity-check
-        return;
-    }
-    if (howMany > TWI_RX_BUFFER_SIZE)
-    {
-        // Also insane number
-        return;
-    }
-
-    reg_position = TinyWireS.receive();
-    howMany--;
-    if (!howMany)
-    {
-        // This write was only to set the buffer for next read
-        return;
-    }
-    while(howMany--)
-    {
-        i2c_regs[reg_position] = TinyWireS.receive();
-        reg_position++;
-        if (reg_position >= reg_size)
-        {
-            reg_position = 0;
-        }
-    }
-}
-
-
-void setup()
-{
-    // TODO: Tri-state this and wait for input voltage to stabilize 
-    pinMode(3, OUTPUT); // OC1B-, Arduino pin 3, ADC
-    digitalWrite(3, LOW); // Note that this makes the led turn on, it's wire this way to allow for the voltage sensing above.
-
-    pinMode(1, OUTPUT); // OC1A, also The only HW-PWM -pin supported by the tiny core analogWrite
-
-    /**
-     * Reminder: taking care of pull-ups is the masters job
-     */
-
-    TinyWireS.begin(I2C_SLAVE_ADDRESS);
-    TinyWireS.onReceive(receiveEvent);
-    TinyWireS.onRequest(requestEvent);
-
-    
-    // Whatever other setup routines ?
-    
-    digitalWrite(3, HIGH);
-}
-
-void loop()
-{
-    /**
-     * This is the only way we can detect stop condition (http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&p=984716&sid=82e9dc7299a8243b86cf7969dd41b5b5#984716)
-     * it needs to be called in a very tight loop in order not to miss any (REMINDER: Do *not* use delay() anywhere, use tws_delay() instead).
-     * It will call the function registered via TinyWireS.onReceive(); if there is data in the buffer on stop.
-     */
-    TinyWireS_stop_check();
-}