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Merge pull request #478 from brentru/update-radio-pi-example

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Update Raspberry Pi LoRa Example
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Mike Barela 2019-01-18 12:44:02 -05:00 committed by GitHub
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1 changed files with 19 additions and 36 deletions
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pi_radio/radio_rfm9x.py
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@ -4,14 +4,15 @@ Example for using the RFM9x Radio with Raspberry Pi.
Learn Guide: https://learn.adafruit.com/lora-and-lorawan-for-raspberry-pi
Author: Brent Rubell for Adafruit Industries
"""
# Import Python System Libraries
import time
import threading
# Import Blinka Libraries
import busio
from digitalio import DigitalInOut, Direction, Pull
import board
# Import thte SSD1306 module.
# Import the SSD1306 module.
import adafruit_ssd1306
# Import the RFM9x
# Import RFM9x
import adafruit_rfm9x
# Button A
@ -46,23 +47,7 @@ RESET = DigitalInOut(board.D25)
spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
rfm9x = adafruit_rfm9x.RFM9x(spi, CS, RESET, 915.0)
rfm9x.tx_power = 23
data_to_send = bytes("Hello LoRa!\r\n","utf-8")
prev_packet = None
# time to delay periodic packet sends (in seconds)
data_pkt_delay = 30.0
def send_pi_data_periodic():
threading.Timer(data_pkt_delay, send_pi_data_periodic).start()
print("Sending periodic data...")
send_pi_data()
def send_pi_data():
rfm9x.send(data_to_send)
display.fill(0)
display.text('Sent Packet', 35, 15, 1)
print('Sent Packet!')
display.show()
time.sleep(0.5)
while True:
packet = None
@ -74,7 +59,7 @@ while True:
packet = rfm9x.receive()
if packet is None:
display.show()
display.text('- Waiting for PKT -', 0, 20, 1)
display.text('- Waiting for PKT -', 15, 20, 1)
else:
# Display the packet text and rssi
display.fill(0)
@ -85,26 +70,24 @@ while True:
time.sleep(1)
if not btnA.value:
# Send Packet
send_pi_data()
# Send Button A
display.fill(0)
button_a_data = bytes("Button A!\r\n","utf-8")
rfm9x.send(button_a_data)
display.text('Sent Button A!', 25, 15, 1)
elif not btnB.value:
# Display the previous packet text and rssi
# Send Button B
display.fill(0)
if prev_packet is not None:
packet_text = str(prev_packet, 'ascii')
display.text('RX: ', 0, 0, 1)
display.text(packet_text, 25, 0, 1)
else:
display.text('No Pkt RCVd', 0, 16, 1)
display.show()
time.sleep(1)
button_b_data = bytes("Button B!\r\n","utf-8")
rfm9x.send(button_b_data)
display.text('Sent Button B!', 25, 15, 1)
elif not btnC.value:
# Send Button C
display.fill(0)
display.text('* Periodic Mode *', 15, 0, 1)
display.show()
time.sleep(0.2)
send_pi_data_periodic()
button_c_data = bytes("Button C!\r\n","utf-8")
rfm9x.send(button_c_data)
display.text('Sent Button C!', 25, 15, 1)
display.show()
time.sleep(.1)
time.sleep(0.1)