diff --git a/prime-tx/main.c b/prime-tx/main.c
index 0b92f32..512688f 100644
--- a/prime-tx/main.c
+++ b/prime-tx/main.c
@@ -41,7 +41,9 @@ void status(display_t *display, rfm_t *radio, int clock) {
 
 int main(void) {
     int clock = 0;
+    uint8_t primes[] = { 1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 0 };
 
+    /*
     display_t display = {
         .reg = {
             .output         = { .ddr = &DDRB, .port = &PORTB, .pin = &PINB, .addr = 7 },
@@ -49,6 +51,7 @@ int main(void) {
             .latch_clock    = { .ddr = &DDRB, .port = &PORTB, .pin = &PINB, .addr = 5 },
         },
     };
+    */
 
     rfm_t radio = (rfm_t){
         .spi    = {
@@ -61,22 +64,33 @@ int main(void) {
         .reset  = { .ddr = &DDRD, .port = &PORTD, .pin = &PIND, .addr = 4 },
     };
 
-    _delay_ms(15);
-    display_init(&display);
+    // _delay_ms(15);
+    // display_init(&display);
 
     rfm_error_e error;
 
     rfm_init(&radio, (uint8_t [4]){ 0xde, 0xca, 0xfb, 0xad }, 4, &error);
 
-    status(&display, &radio, clock);
+    // status(&display, &radio, clock);
 
     int next_transmit = 0;
+    int prime = 0;
     while (1) {
         if (clock >= next_transmit) {
-            rfm_transmit(&radio, (uint8_t [7]){ 1, 2, 3, 5, 7, 11, 13 }, 7);
-            next_transmit = clock + 15;
+            // display_clear(&display);
+            char msg[16];
+            sprintf(msg, "sending %d", primes[prime]);
+            // display_write_message(&display, msg);
+            rfm_transmit(&radio, &primes[prime], 1);
+            if (primes[prime] == 0) {
+                prime = 0;
+            } else {
+                prime++;
+            }
+            next_transmit = clock + 10;
+            _delay_ms(1000);
         }
-        status(&display, &radio, clock);
+        // status(&display, &radio, clock);
         interrupt_flags_t flags = rfm_interrupts(&radio);
 
         if (flags.packet_sent) {
@@ -85,112 +99,5 @@ int main(void) {
         clock++;
         _delay_ms(1000);
     }
-
-    /*
-    */
-
-    /*
-    if (!error) {
-        display_clear(&display);
-        display_write_message(&display, "Error detected");
-    } else {
-        while (1) {
-            status(&display, &radio);
-            _delay_ms(1000);
-
-            rfm_receive_mode(&radio);
-            status(&display, &radio);
-            _delay_ms(1000);
-            rfm_standby(&radio);
-
-        }
-    }
-    */
-
-    /*
-    status(&display, &radio);
-    _delay_ms(1000);
-
-    rfm_set_mode(&display, &radio, (op_mode_t){ .listen_on = true, .mode = standby });
-    _delay_ms(1000);
-    rfm_set_mode(&display, &radio, (op_mode_t){ .listen_on = true, .mode = standby });
-    _delay_ms(1000);
-    */
-
-    /*
-    rfm_packet_format(&radio, fixed, 8);
-
-    rfm_set_mode(&display, &radio, (op_mode_t){ .listen_on = false, .mode = rx });
-    _delay_ms(1000);
-    status(&display, &radio);
-    */
-
-
-    /*
-    while (1) {
-        status(&display, &radio);
-        _delay_ms(1000);
-
-        uint8_t data;
-        rfm_receive(rfm, &data, 1);
-        */
-
-        /*
-        uint8_t b[8];
-        char msg[32];
-        status(&display, &radio);
-        _delay_ms(1000);
-
-        interrupt_flags_t flags = rfm_interrupts(&radio);
-
-        if (flags.fifo_not_empty) {
-            rfm_receive(&radio, b, 8);
-
-            display_clear(&display);
-            for (int i = 0; i < 8; i++) {
-                sprintf(msg, "%x", b[i]);
-            }
-            display_write_message(&display, msg);
-            _delay_ms(1000);
-        }
-        */
-    // }
-
-    /*
-    spi_acquire(&rfm.spi);
-    spi_transfer_byte(&rfm.spi, 0x11);
-    spi_transfer_byte(&rfm.spi, 0x01);
-    spi_release(&rfm.spi);
-
-    spi_acquire(&rfm.spi);
-    spi_transfer_byte(&rfm.spi, 0x10);
-    spi_transfer_byte(&rfm.spi, 1);
-    spi_transfer_byte(&rfm.spi, 2);
-    spi_transfer_byte(&rfm.spi, 3);
-    spi_transfer_byte(&rfm.spi, 5);
-    spi_transfer_byte(&rfm.spi, 7);
-    spi_transfer_byte(&rfm.spi, 11);
-    spi_transfer_byte(&rfm.spi, 13);
-    spi_release(&rfm.spi);
-
-    status = rfm_status(&rfm);
-    if (status & _BV(7)) {
-        clear_line(&light);
-    } else {
-        set_line(&light);
-    }
-    */
-
-    /*
-    uint8_t count[1] = { 0 };
-    while(1) {
-        rfm_send_data(&rfm, count, 1);
-        count[0]++;
-        set_line(&light);
-        _delay_ms(50);
-        clear_line(&light);
-        _delay_ms(50);
-    }
-    */
     return 0;
 }