Linux controlling Icom IC-7300
In order to control IC-7300 using Python under linux we need to instantiate serial object first.
ser = serial.Serial(serialport, baudrate) then we need to send some data via serial.
Icom data is yet to study but for frequency change here is a simple script to do that .
As a remark,the problem not yet solved is that if Icom has Connectors /USB Send set as RTS for N1MM control or other software , then once the serial object is instantiated , the transceiver goes to transmit mode for a short period of time.
This small script would be the base for a larger project of mine regarding an crystal bandpass filter
for 40 meter band controlled by Arduino but willing to communicate bi-directional with IC-7300 using Ci-V jack, of course ported in C language.
#! /usr/bin/python3
import time
import serial
import struct
from time import sleep
baudrate = 9600
serialport = "/dev/ttyUSB0"
ser = serial.Serial(serialport, baudrate)
#sleep(0.5)
ser.setDTR(False) # prevent TCVR cw send if USB key is set on DTR
ser.setRTS(False) # prevent TCVR going transmit if USB Send is set on RTS
# Define the string for freq change
string = ["0xfe","0xfe","0x94","0xe0","0x00","0x56","0x34","0x12","0x07","0x00","0xfd"]
# Where fefe is start sequance, 94 is icom address, e0 is computer address, next 5 groups
# represents reverse freq # like 14.124.456 Mhz , 00 is the end of data and fd is execute data
string_set = 0
while(string_set < 11):
senddata = int(bytes(string[string_set], 'UTF-8'), 16)
ser.write(struct.pack('>B', senddata))
string_set +=1
ser.close()