rpi example added

example-nrf24-send-rpi.py

@@ -0,0 +1,53 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+#
+# Example program to send packets to the radio link
+#
+
+
+import RPi.GPIO as GPIO
+GPIO.setmode(GPIO.BCM)
+from lib_nrf24 import NRF24
+import time
+import spidev
+
+
+
+pipes = [[0xe7, 0xe7, 0xe7, 0xe7, 0xe7], [0xc2, 0xc2, 0xc2, 0xc2, 0xc2]]
+
+radio = NRF24(GPIO, spidev.SpiDev())
+radio.begin(0, 17)
+time.sleep(1)
+radio.setRetries(15,15)
+radio.setPayloadSize(32)
+radio.setChannel(0x60)
+
+radio.setDataRate(NRF24.BR_2MBPS)
+radio.setPALevel(NRF24.PA_MIN)
+radio.setAutoAck(True)
+radio.enableDynamicPayloads()
+radio.enableAckPayload()
+
+
+radio.openWritingPipe(pipes[1])
+radio.openReadingPipe(1, pipes[0])
+radio.printDetails()
+
+
+c=1
+while True:
+    buf = ['H', 'E', 'L', 'O',c]
+    c = (c + 1) & 255
+    # send a packet to receiver
+    radio.write(buf)
+    print ("Sent:"),
+    print (buf)
+    # did it return with a payload?
+    if radio.isAckPayloadAvailable():
+        pl_buffer=[]
+        radio.read(pl_buffer, radio.getDynamicPayloadSize())
+        print ("Received back:"),
+        print (pl_buffer)
+    else:
+        print ("Received: Ack only, no payload")
+    time.sleep(10)