wayne roberts / Mbed OS alarm_slave

raises pin at time instructed by received LoRa packet.

Dependencies:   sx126x sx12xx_hal

radio chip selection

Radio chip driver is not included, allowing choice of radio device.
If you're using SX1272 or SX1276, then import sx127x driver into your program.
if you're using SX1261 or SX1262, then import sx126x driver into your program.
if you're using SX1280, then import sx1280 driver into your program.
If you're using NAmote72 or Murata discovery, then you must import only sx127x driver.

Transmitter side is at Alarm Slave project page.
Output is observed on nucleo morpho connector pins pin[A-D]: see code for actual pins used.

Diff: main.cpp

Revision:
1:6a3a48d657a9
Parent:
0:b6ec8db2edbf
Child:
2:bf201940a9db
--- a/main.cpp	Tue Aug 22 10:16:06 2017 -0700
+++ b/main.cpp	Thu Aug 31 23:14:55 2017 +0000
@@ -17,20 +17,28 @@
         rfsw = 0;
 }
 /**********************************************************************/
-DigitalOut pc_3(PC_3);
+DigitalOut pc3(PC_3);
+DigitalOut pc2(PC_2);
+DigitalOut pc6(PC_6);
+DigitalOut pc8(PC_8);
+DigitalOut* pin; 
 Timeout to;
 
-#define PIN_ASSERT_us       200000
-#define CMD_ALARM       0x01
+#define PIN_ASSERT_us       500000
+
+#define CMD_PC2       0x02
+#define CMD_PC3       0x03
+#define CMD_PC6       0x06
+#define CMD_PC8       0x08
 
 void alarm_pin_clr()
 {
-    pc_3 = 0;
+    pin->write(0);
 }
 
 void alarm_pin_set()
 {
-    pc_3 = 1;
+    pin->write(1);
     to.attach_us(&alarm_pin_clr, PIN_ASSERT_us);
 }
 
@@ -66,7 +74,9 @@
     rx_crc += radio.rx_buf[6];
     //printf("%u) crc rx:%04x, calc:%04x\r\n", lora.RegRxNbBytes, rx_crc, crc);
     if (crc == rx_crc) {
-        if (radio.rx_buf[0] == CMD_ALARM) {
+        uint8_t c = radio.rx_buf[0];
+        //if (radio.rx_buf[0] == CMD_ALARM)
+        if (c == CMD_PC2 || c == CMD_PC3 || c == CMD_PC6 || c == CMD_PC8) {
             unsigned delay;
             delay = radio.rx_buf[1];
             delay <<= 8;
@@ -75,6 +85,12 @@
             delay += radio.rx_buf[3];
             delay <<= 8;
             delay += radio.rx_buf[4];
+            switch (c) {
+                case CMD_PC2: pin = &pc2; break;
+                case CMD_PC3: pin = &pc3; break;
+                case CMD_PC6: pin = &pc6; break;
+                case CMD_PC8: pin = &pc8; break;
+            }
             to.attach_us(&alarm_pin_set, delay);
             printf("delay:%u\r\n", delay);
         } else