Fixed light sensor script

esp32-lora/screen.py

@@ -0,0 +1,36 @@
+from machine import Pin, SoftI2C
+from ssd1306 import SSD1306_I2C
+import time
+
+class Screen :
+
+    sda = None
+    scl = None
+    rst = None
+    oled = None
+
+    def __init__(self) :
+        self.sda = Pin(17)
+        self.scl = Pin(18)
+        self.rst = Pin(21, Pin.OUT)
+        self.oled =  SSD1306_I2C(
+            128,
+            64,
+            SoftI2C(scl=self.scl, sda=self.sda, freq=100000),
+            addr=0x3C
+        )
+        self.__prepare()
+
+    def reset(self):
+        self.oled.fill(0)
+        self.oled.show()
+
+    def display(self, message, col, row):
+        self.oled.text(message, col, row)
+        self.oled.show()
+
+    def __prepare(self):
+        self.rst.value(0)
+        time.sleep_ms(150)
+        self.rst.value(1)
+        time.sleep_ms(150)