Diff: pir1_sensor.cpp

Revision:

2:6541a391bdbd

Child:

4:aa25f65395e3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pir1_sensor.cpp	Thu Jan 05 11:31:12 2017 +0100
@@ -0,0 +1,80 @@
+#include "common.h"
+#include "mbed.h"
+#include "nRF24L01P.h"
+
+// ***** SETTINGS START *****
+
+const unsigned long long RX_ADDRESS = MASTER_ADDRESS;
+const unsigned long long TX_ADDRESS = PIR1_ADDRESS;
+const double SEND_INTERVAL = 5.0;
+const uint8_t SENSOR_ID = PIR1;
+
+// ***** SETTINGS END *****
+
+Serial pc(USBTX, USBRX); // tx, rx
+nRF24L01P radio(PB_15, PB_14, PB_13, PB_12, PB_1, PB_2); // mosi, miso, sck, csn, ce, irq
+DigitalIn sensor(PA_10);
+
+Ticker sender;
+bool send_acc_results = false;
+
+void set_send() {
+    send_acc_results = true;
+}
+
+void init() {
+    sensor.mode(PullDown);
+    pc.baud(115200);
+    sender.attach(&set_send, SEND_INTERVAL);
+    radio_init(&radio, RX_ADDRESS, TX_ADDRESS);
+}
+
+int main() {
+    init();
+    
+    // Display the (default) setup of the nRF24L01+ chip
+    pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  radio.getRfFrequency() );
+    pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  radio.getRfOutputPower() );
+    pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", radio.getAirDataRate() );
+    pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", radio.getTxAddress() );
+    pc.printf( "nRF24L01+ RX0 Address   : 0x%010llX\r\n", radio.getRxAddress(NRF24L01P_PIPE_P0) );
+    pc.printf( "nRF24L01+ RX1 Address   : 0x%010llX\r\n", radio.getRxAddress(NRF24L01P_PIPE_P1) );
+    
+    uint8_t count_changes;
+    int last_state;
+    
+    while (1) {
+        int state;
+        if (sensor.read()) {
+            state = 1;
+        } else {
+            state = 0;
+        }
+        
+        if (last_state != state) {
+            last_state = state;
+            count_changes++;
+        }
+        
+        if (send_acc_results) {
+            Data data(SENSOR_ID, count_changes);
+            std::string serialized_data = data.serialize();
+            pc.printf("string data '%s', len %d\r\n", serialized_data.c_str(), serialized_data.size());
+            
+            char message[TRANSFER_SIZE];
+            memcpy(message, serialized_data.c_str(), serialized_data.length());
+            int tx_bytes = radio.write(NRF24L01P_PIPE_P0, message, TRANSFER_SIZE);
+            
+            if (tx_bytes > 0) {
+                pc.printf("Counter: %d\r\n", count_changes);
+                pc.printf("RETR: %d\r\n", radio.getRetrCount());  
+                count_changes = 0;
+                send_acc_results = false;
+            }
+            if(tx_bytes < 0)
+                pc.printf("TX ERROR\r\n");       
+        }
+        
+    }
+}
+