Bender Robotics
receiving side for swimmers
Revision 0:210056f4d794, committed 2015-02-28
- Comitter:
- jkaderka
- Date:
- Sat Feb 28 14:47:46 2015 +0000
- Child:
- 1:29fdc2c617f8
- Commit message:
- first commit
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Feb 28 14:47:46 2015 +0000
@@ -0,0 +1,106 @@
+#include "mbed.h"
+#include "nRF24L01P.h"
+
+#define BUFFER_SIZE 32//(sizeof(int)*4 + sizeof(float)*3)
+#define BAUDR 115200
+
+#define SAVING_START 'S'
+#define SAVING_STOP 'E'
+#define TRANSFER_START 'T'
+#define CHECK_READY 'R'
+#define SEND_ACK 'A'
+
+#define NACK 'N'
+#define ACK 'A'
+
+Serial pc(USBTX, USBRX);
+nRF24L01P rf(p5, p6, p7, p8, p9);
+//nRF24L01P rf(p11, p12, p13, p14, p15);
+DigitalOut led(LED1);
+
+
+void send_ack()
+{
+ char buffer[BUFFER_SIZE];
+ buffer[0] = 0x00;
+ buffer[1] = SEND_ACK;
+
+ rf.write(NRF24L01P_PIPE_P0, buffer, BUFFER_SIZE);
+}
+
+void check_ack()
+{
+ char buffer[BUFFER_SIZE];
+ wait_ms(10);
+ if (!rf.readable()) {
+ printf("#%c\n", NACK);
+ return;
+ }
+
+ rf.read(NRF24L01P_PIPE_P0, buffer, BUFFER_SIZE);
+ if (buffer[0] != 0x00 || buffer[1] != SEND_ACK)
+ printf("#%c\n", NACK);
+
+ printf("#%c\n", ACK);
+}
+
+int send_cmd(void)
+{
+ char buffer[BUFFER_SIZE];
+ char c;
+ static char last = 0;
+
+ c = pc.getc();
+ if (c != '#' && last != 1)
+ return -1;
+ if (c == '#') {
+ last = 1;
+ return 0;
+ }
+
+ last = 0;
+
+ buffer[0] = 0x00;
+ buffer[1] = c;
+ rf.write(NRF24L01P_PIPE_P0, buffer, BUFFER_SIZE);
+ check_ack();
+ return 0;
+}
+
+void communication(void)
+{
+ char buffer[BUFFER_SIZE+1];
+ int bytes;
+
+ printf("\n\nReceiving data\n\r");
+ while(1) {
+ if (pc.readable())
+ send_cmd();
+
+ bytes = rf.read(NRF24L01P_PIPE_P0, buffer, BUFFER_SIZE);
+ if (bytes <= 0)
+ continue;
+
+ send_ack();
+ buffer[bytes] = '\0';
+ printf("%s", buffer);
+ }
+}
+
+int main(void)
+{
+ pc.baud(BAUDR);
+
+ rf.setTransferSize(BUFFER_SIZE);
+ rf.setRfOutputPower(NRF24L01P_TX_PWR_ZERO_DB);
+ rf.setAirDataRate(NRF24L01P_DATARATE_1_MBPS);
+ rf.setReceiveMode();
+ rf.enable();
+
+ printf("Freq: %d MHz\n\r", rf.getRfFrequency());
+ printf("Power: %d dBm\n\r", rf.getRfOutputPower());
+ printf("TX Address: %llu\n\r", rf.getTxAddress());
+ printf("RX Address: %llu\n\r", rf.getRxAddress());
+
+ communication();
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sat Feb 28 14:47:46 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/9114680c05da
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nRF24L01P.lib Sat Feb 28 14:47:46 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/Owen/code/nRF24L01P/#8ae48233b4e4