Errors (#142)

Added & updated error messages when using incompatible shield (firmware)

shields/lib/pycoproc_1.py

@@ -127,7 +127,7 @@ def __init__(self, board_type, i2c=None, sda='P22', scl='P21'):
         self.mask_bits_in_memory(TRISC_ADDR, ~(1 << 7))
 
         if self.read_fw_version() < 6:
-            raise ValueError('Firmware out of date')
+            raise ValueError('Firmware for Shield1 out of date')
 
 
     def _write(self, data, wait=True):

shields/lib/pycoproc_2.py

@@ -152,7 +152,7 @@ def __init__(self, i2c=None, sda='P22', scl='P21'):
         # for Pysense/Pytrack 2.0, the minimum firmware version is 15
         fw = self.read_fw_version()
         if fw < 16:
-            raise ValueError('Firmware out of date', fw)
+            raise ValueError('Firmware for Shield2 out of date', fw)
 
         # init the ADC for the battery measurements
         self.write_byte(ANSELC_ADDR, 1 << 2) # RC2 analog input

shields/pysense_2.py

@@ -24,6 +24,8 @@
 pycom.rgbled(0x0A0A08) # white
 
 py = Pycoproc()
+if py.read_product_id() != Pycoproc.USB_PID_PYSENSE:
+    raise Exception('Not a Pysense')
 
 mp = MPL3115A2(py,mode=ALTITUDE) # Returns height in meters. Mode may also be set to PRESSURE, returning a value in Pascals
 print("MPL3115A2 temperature: " + str(mp.temperature()))

shields/pytrack_2.py

@@ -36,6 +36,8 @@
 print('Adjusted from UTC to EST timezone', utime.localtime(), '\n')
 
 py = Pycoproc()
+if py.read_product_id() != Pycoproc.USB_PID_PYTRACK:
+    raise Exception('Not a Pytrack')
 
 time.sleep(1)
 l76 = L76GNSS(py, timeout=30, buffer=512)