1 files changed, 42 insertions, 0 deletions
diff --git a/keyboards/lets_split/uno-slave/keyboard-i2c-slave.c b/keyboards/lets_split/uno-slave/keyboard-i2c-slave.c
new file mode 100644
index 000000000..2043e7b94
--- /dev/null
+++ b/keyboards/lets_split/uno-slave/keyboard-i2c-slave.c
@@ -0,0 +1,42 @@
+#include "../i2c-slave.h"
+#include "../serial.h"
+#include "uno-matrix.h"
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+
+void setup(void) {
+  // give some time for noise to clear
+  _delay_us(1000);
+
+  // turn off arduino uno's led on pin 13
+  DDRB |= (1 << 5);
+  PORTB &= ~(1 << 5);
+
+  matrix_init();
+  /* i2c_slave_init(0x32); */
+  serial_slave_init();
+
+  /* serial_slave_buffer[0] = 0xa1; */
+  /* serial_slave_buffer[1] = 0x52; */
+  /* serial_slave_buffer[2] = 0xa2; */
+  /* serial_slave_buffer[3] = 0x67; */
+
+  // need interrupts for i2c slave code to work
+  sei();
+}
+
+void loop(void) {
+  matrix_scan();
+  for(int i=0; i<MATRIX_ROWS; ++i) {
+    slaveBuffer[i] = matrix_get_row(i);
+    serial_slave_buffer[i] = slaveBuffer[i];
+  }
+}
+
+int main(int argc, char *argv[]) {
+  setup();
+  while (1)
+    loop();
+}