fix: cannot get all correct data

Author: Hansen0314

examples/BasicReadings.py

@@ -15,7 +15,7 @@ def main():
             mlx.getFrame(frame)
         except ValueError:
             continue
-        print(frame)
+        # print(frame)
         end = time.time()
         print("The time: %f"%(end - start))
 if __name__  == '__main__':

examples/MaxRefreshRate.py

@@ -12,10 +12,7 @@ def main():
     time.sleep(1)
     while True:
         start = time.time()
-        try:
-            mlx.getFrame(frame)
-        except ValueError:
-            continue
+        mlx.getFrame(frame)
         print(frame)
         end = time.time()
         print("The time: %f"%(end - start))

seeed_mlx9064x.py

@@ -10,7 +10,7 @@
 I2C_READ_LEN = 2048
 SCALEALPHA = 0.000001
 MLX90640_DEVICEID1 = 0x2407
-OPENAIR_TA_SHIFT = 8
+OPENAIR_TA_SHIFT = 12
 
 class RefreshRate: 
     """ Enum-like class for MLX90640's refresh rate """
@@ -722,8 +722,8 @@ class grove_mxl90641(MLX9064X_I2C_Driver):
     alphaPTAT = 0
     gainEE = 0
     tgc = 0
-    KsTa = 0
     resolutionEE = 0
+    KsTa = 0
     ksTo = [0] * 8
     ct = [0] * 8
     alpha = [0] * 192
@@ -735,12 +735,10 @@ class grove_mxl90641(MLX9064X_I2C_Driver):
     kvScale = 0
     cpAlpha = 0
     cpOffset = 0
-    ilChessC = [0] * 3
     brokenPixels = [0xFFFF] * 5
     cpKta = 0
     cpKv = 0
     emissivityEE = 0
-
     def __init__(self,address=0x33):
         super(grove_mxl90641, self).__init__(address)
         self.refresh_rate = RefreshRate.REFRESH_0_5_HZ 
@@ -1021,13 +1019,29 @@ def _ExtractParameters(self):
         self._ExtractKvPixelParameters()
         self._ExtractCPParameters()
         self._ExtractDeviatingPixels()
-
+        # debug output
+        print('-'*40)
+        print("kVdd = %d, vdd25 = %d" % (self.kVdd, self.vdd25))
+        print("KvPTAT = %f, KtPTAT = %f, vPTAT25 = %d, alphaPTAT = %f" %
+             (self.KvPTAT, self.KtPTAT, self.vPTAT25, self.alphaPTAT))
+        print("Gain = %d, Tgc = %f, Resolution = %d" % (self.gainEE, self.tgc, self.resolutionEE))
+        print("KsTa = %f, ksTo = %s, ct = %s" % (self.KsTa, self.ksTo, self.ct))
+        print("cpAlpha:", self.cpAlpha, "cpOffset:", self.cpOffset)
+        print("alpha: ", self.alpha)
+        print("alphascale: ", self.alphaScale)
+        print("offset: ", self.offset)
+        print("kta:", self.kta)
+        print("ktaScale:", self.ktaScale)
+        print("kv:", self.kv)
+        print("kvScale:", self.kvScale)
+        print(eeData)
+        print('-'*40)
     def _ExtractVDDParameters(self):
         # extract VDD
         self.kVdd = eeData[39]
         if self.kVdd > 1023:
             self.kVdd = self.kVdd - 2048
-        self.KVdd = 32 * self.kVdd
+        self.kVdd = 32 * self.kVdd
 
         self.vdd25 = eeData[38]
         if self.vdd25 > 1023:
@@ -1215,13 +1229,15 @@ def _ExtractKvPixelParameters(self):
         kvScale1 = eeData[24] >> 5
         kvScale2 = eeData[24] & 0x001F
         for i in range(192):
-            tempKv = (eeData[448 + i] >> 5)
+            tempKv = (eeData[448 + i] & 0x001F)
             if tempKv > 15:
                 tempKv = tempKv - 32
             kvTemp[i] = tempKv * math.pow(2,kvScale2)
             kvTemp[i] += kvAvg
             kvTemp[i] /= math.pow(2,kvScale1)            
-        temp = max(map(abs,kvTemp)) 
+        temp = abs(kvTemp[0])
+        for kv in kvTemp:
+            temp = max(temp, abs(kv))
         kvScale1 = 0
         while temp < 64 :
             temp = temp * 2
@@ -1247,4 +1263,4 @@ def _ExtractDeviatingPixels(self):
             pixCnt += 1 
         if brokenPixCnt > 2:
             raise RuntimeError("More than 3 broken pixels")
-        print("Found %d broken pixels" % (brokenPixCnt))
+        print("Found %d broken pixels" % (brokenPixCnt))

setup.py

@@ -19,7 +19,7 @@
 
 setup(
     name='seeed-python-mlx9064x',
-    version="1.1.2",
+    version="1.1.3",
     description='Python library for the Grove - Thermal Imaging Camera(MLX9064x) is an thermal sensor. ',
     long_description=long_description,
     long_description_content_type='text/markdown',