mirror of
https://github.com/furrtek/PrecIR.git
synced 2026-03-30 14:15:52 +00:00
83 lines
2.4 KiB
Python
83 lines
2.4 KiB
Python
# Procedures related to the IR transmitters only
|
|
# 2019 furrtek - furrtek.org
|
|
# See LICENSE
|
|
|
|
import serial
|
|
|
|
def search_esl_blaster():
|
|
found = 0
|
|
for n in range(1, 20):
|
|
comport = "COM" + str(n)
|
|
try:
|
|
ser = serial.Serial(comport, 57600, timeout = 1) # 1s timeout for read
|
|
ser.write("?".encode())
|
|
ser.flush()
|
|
test = len(ser.read_until("ESLBlaster"))
|
|
ser.close()
|
|
if (test == 10):
|
|
print("Found ESL Blaster on " + comport)
|
|
found = 1
|
|
break
|
|
else:
|
|
print("Timeout on " + comport)
|
|
except serial.SerialException:
|
|
print("SerialException on " + comport)
|
|
continue
|
|
|
|
if (found == 0):
|
|
print("Could not find ESL Blaster.")
|
|
return "0"
|
|
else:
|
|
return comport
|
|
|
|
def transmit_serial(frames, port):
|
|
ser = serial.Serial(port, 57600, timeout = 10) # 10s timeout for read
|
|
ser.reset_input_buffer()
|
|
frame_count = len(frames)
|
|
i = 1
|
|
for fr in frames:
|
|
data_size = len(fr) - 2
|
|
repeats = fr[-2] + (fr[-1] * 256)
|
|
if repeats > 255:
|
|
repeats = 255
|
|
print("Transmitting frame %u/%u, length %u, repeated %u times." % (i, frame_count, data_size, repeats))
|
|
|
|
ba = bytearray()
|
|
ba.append(data_size)
|
|
ba.append(repeats)
|
|
for b in range(0, data_size):
|
|
ba.append(fr[b])
|
|
|
|
ser.write(ba)
|
|
ser.flush()
|
|
ser.read_until('A')
|
|
i += 1
|
|
|
|
ser.close()
|
|
|
|
def transmit_esl_blaster(frames, port):
|
|
ser = serial.Serial(port, 57600, timeout = 10) # 10s timeout for read
|
|
ser.reset_input_buffer()
|
|
frame_count = len(frames)
|
|
i = 1
|
|
for fr in frames:
|
|
data_size = len(fr) - 2
|
|
repeats = fr[-2] + (fr[-1] * 256)
|
|
print("Transmitting frame %u/%u, length %u, repeated %u times." % (i, frame_count, data_size, repeats))
|
|
|
|
ba = bytearray()
|
|
ba.append('L')
|
|
ba.append(data_size)
|
|
ba.append(30) # 30*50 = 1500 timer ticks between repeats
|
|
ba.append(repeats & 255)
|
|
ba.append((repeats // 256) & 255)
|
|
for b in range(0, len(fr) - 2):
|
|
ba.append(fr[b])
|
|
ba.append('T')
|
|
ser.write(ba)
|
|
ser.flush()
|
|
ser.read_until('K')
|
|
i += 1
|
|
|
|
ser.close()
|