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Fixed RSSI indication confusion. Added SNR indication to received packets.

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This commit is contained in:
Mark Qvist 2019-11-07 15:26:21 +01:00
parent cd4587cca2
commit bad6f4bf75
9 changed files with 1572 additions and 1451 deletions
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2
Libraries/Example.py
View file

@ -12,6 +12,8 @@ serialPort = "/dev/ttyUSB0"
# packet is received
def gotPacket(data, rnode):
print "Received a packet: "+data
print "RSSI: "+str(rnode.r_stat_rssi)+" dBm"
print "SNR: "+str(rnode.r_stat_snr)+" dBm"
# Create an RNode instance. This configures
# and powers up the radio.

30
Libraries/RNode.py
View file

@ -27,6 +27,7 @@ class KISS():
CMD_STAT_RX = chr(0x21)
CMD_STAT_TX = chr(0x22)
CMD_STAT_RSSI = chr(0x23)
CMD_STAT_SNR = chr(0x24)
CMD_BLINK = chr(0x30)
CMD_RANDOM = chr(0x40)
CMD_FW_VERSION = chr(0x50)
@ -66,7 +67,8 @@ class RNodeInterface():
LOG_DEBUG = 6
LOG_EXTREME = 7
RSSI_OFFSET = 292
RSSI_OFFSET = 157
SNR_OFFSET = 128
def __init__(self, callback, name, port, frequency = None, bandwidth = None, txpower = None, sf = None, cr = None, loglevel = -1, flow_control = True):
self.serial = None
@ -99,6 +101,7 @@ class RNodeInterface():
self.r_stat_rx = None
self.r_stat_tx = None
self.r_stat_rssi = None
self.r_stat_snr = None
self.r_random = None
self.packet_queue = []
@ -310,6 +313,7 @@ class RNodeInterface():
while self.serial.is_open:
if self.serial.in_waiting:
byte = self.serial.read(1)
last_read_ms = int(time.time()*1000)
if (in_frame and byte == KISS.FEND and command == KISS.CMD_DATA):
@ -412,7 +416,29 @@ class RNodeInterface():
self.r_stat_tx = ord(command_buffer[0]) << 24 | ord(command_buffer[1]) << 16 | ord(command_buffer[2]) << 8 | ord(command_buffer[3])
elif (command == KISS.CMD_STAT_RSSI):
self.r_stat_rssi = ord(byte)-self.RSSI_OFFSET
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
self.r_stat_rssi = ord(byte)-self.RSSI_OFFSET
elif (command == KISS.CMD_STAT_SNR):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
self.r_stat_snr = ord(byte)-self.SNR_OFFSET
elif (command == KISS.CMD_RANDOM):
self.r_random = ord(byte)
elif (command == KISS.CMD_ERROR):