BG5VLI My personal opinion is that this module might be directly forwarding received data packets. Clarifying the TX and RX definitions for 'k' header could potentially help.😂
BG8LGP This is definitely achievable; the K5's K-head line definition diagram matches exactly with what "建伍" has: Furthermore, you can use the relevant Python code from GitHub to create a Bluetooth writing software, which will enable Bluetooth writing.
ReadAir BG8LGP Hello, I've been searching for a definition of this K-header, and the diagram shows 6 lines. Why can I only find examples online with 5 cores?
zhou2008 After adding the Bluetooth serial module, I can now use my computer to control the frequency via Bluetooth!
ReadAir BG8LGP When searching for "K-head" cables, I can only find these types, which have either four or five cores. However, the cable labels are missing the R segment with a 2.5mm connector, and I'm not sure what the internal structure of the write-enable line between one end of the K-head and the USB port is like. Could it contain a CH340 chip or something similar?
BG8LGP ReadAir I understand that this is a pre-wired kit, designed to make it easy for you to connect the chip and create the write-in line directly. The specific wires to connect are shown in the diagram I posted above.
Yuluoxk ReadAir Yes, inside the frequency line, there is a CH340 chip. When connected to a computer and checking for serial devices, you will see an additional CH340.
ReadAir BG8LGP It seems like I can't use it for writing a frequency line. This cable, once connected, can only be used for speaker output or voice input. The small R-end is not connected, and neither is the serial TX end. So, I don't think this will work?
Yuluoxk Since Bluetooth can be used for this purpose, could it also be possible to create an application that uses Wi-Fi for writing firmware or upgrading? I have a large white Dragon Sparrow Tech Bluetooth and Wi-Fi board that I'm planning to try out.
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