Added Node as Access point (hotspot).

04_ACCESS_POINT/accesspoint.py

@@ -0,0 +1,14 @@
+# Code to make the NodeMCU (ESP8266) an access point, so that other devices can connect to it.
+
+import network
+
+ap = network.WLAN(network.AP_IF)        # Access point interface, this will be used to make the Node into a hotspot.
+
+ap.active(True)     # Activate the Access Point interface.
+
+ap.config(essid="ESSID", password="PASSWORD")       # Replace ESSID with the network name, and PASSWORD with the password for other devices to connect.
+
+print(ap.ifconfig())        # Prints (on Terminal) the IP address, netmask, gateway, DNS.
+
+# The following command returns True if devices are connected to the NodeMCU.
+# ap_if.active()

04_ACCESS_POINT/readme.md

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+# 04_ACCESS_POINT
+To run the program use the following ampy command
+
+## MAC OS
+```bash
+    ampy --port /dev/tty.SLAB_USBtoUART run accesspoint.py
+```
+
+## Linux
+```bash
+    ampy --port /dev/ttyUSB0 run accesspoint.py
+```