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boot.py

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+# This file is executed on every boot (including wake-boot from deepsleep)
+#import esp
+#esp.osdebug(None)
+
+import network
+from network import WLAN as wlan, STA_IF as staif, AP_IF as apif
+import time
+
+time.sleep_ms(100)
+#make sure AP mode is off and station mode is on
+if wlan(apif).active() == True:
+    wlan(apif).active(False)
+if wlan(staif).active() != True:
+    wlan(staif).active(True)
+
+#we don't want to go through all this crap if stored network details are available
+#this is inside an if statement because this file gets executed after deepsleep
+# so we may still be connected(?)
+if wlan(staif).isconnected() != True:
+    nets=wlan(staif).scan()
+    found_net=False
+    for net in nets:
+        if net[0] == b'WiFiNetworkName':
+            wlan(staif).connect("WiFiNetworkName","WiFiNetworkPSK")
+            found_net=True
+            break
+        elif net[0] == b'WiFiNetworkName':
+            wlan(staif).connect("WiFiNetworkName","WiFiNetworkPSK")
+            found_net=True
+            break
+    if found_net == False:
+        print("couldn't connect to wifi, nets found: %s" % nets)
+        print("to fix temporarily, run: from network import STA_IF,WLAN as wlan;wlan(STA_IF).connect('yournet','yourpass'), followed shortly after by wlan(STA_IF).ifconfig()")
+        #exit
+    else:
+        #Loop until wifi is connected and passes DHCP, or until 30 seconds have elapsed.
+        slept=0
+        while wlan(staif).ifconfig()[0] == '0.0.0.0' or wlan(staif).isconnected() == False:
+            if slept > 300:
+                break
+            time.sleep_ms(100)
+            slept+=1
+
+import webrepl
+webrepl.start()

init_sample.py

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+class init_sample:
+    def __init__(self, hw):
+        #Basic script to print module family, variant, and IP address
+        from network import WLAN as wlan, STA_IF as staif
+        from time import sleep_ms
+        if hw.features.display.oled:
+            oled = hw.oled.handle
+            oled.text("hey",0,0)
+            oled.text(hw.family,0,8)
+            oled.text(hw.variant,0,16)
+            oled.text(wlan(staif).ifconfig()[0],0,24)
+            oled.show()
+        else:
+            print(hw.family)
+            print(hw.variant)
+            print(wlan(staif).ifconfig()[0])
+        sleep_ms(1000)