Create main.py

Sample application for using Hologram with GPRS

hologram_demo/main.py

@@ -0,0 +1,51 @@
+"""This app connects to the Hologram service via GPRS  displays recieved data on the screen and sets the neopixles"""
+
+___title___        = "Hologram Demo"
+___license___      = "MIT"	
+___dependencies___ = ["app", "sim800"]
+___categories___   = ["EMF", "System"]
+___bootstrapped___ = False
+
+#import ugfx, os, time, sleep, app, sim800
+
+import ugfx, app, sim800
+import os
+from tilda import Buttons
+from time import sleep
+from machine import Neopix
+
+
+n = Neopix()
+
+ugfx.init()
+ugfx.clear()
+ugfx.set_default_font(ugfx.FONT_FIXED)
+
+
+def callback(data):
+    payload=data.decode("utf-8") 
+    ugfx.Label(5, 100, 240, 15, payload)
+    colour = int(payload)
+    n.display([colour,colour])
+    
+print('Launching Hologram Demo')
+ugfx.Label(5, 20, 240, 15, "Starting....")
+sim800.setup_gprs()
+ugfx.Label(5, 20, 240, 15, "GPRS Ready")
+sim800.connect_gprs('hologram')
+ugfx.Label(5, 40, 240, 15, "GPRS Connected")
+sim800.start_server(4010, callback)
+ugfx.Label(5, 60, 240, 15, "Server Started")
+
+
+ugfx.Label(5, 300, 240, 15, "** Hold A or B or MENU to exit **")
+
+
+while (not Buttons.is_pressed(Buttons.BTN_A)) and (not Buttons.is_pressed(Buttons.BTN_B)) and (not Buttons.is_pressed(Buttons.BTN_Menu)):
+    sleep(2)
+
+ugfx.clear()
+ugfx.Label(5, 20, 240, 15, "Stopping....")
+sim800.stop_server()
+sim800.stop_gprs()
+app.restart_to_default()