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Default com baudrate settings? NanoVNA-H

Ray, W4BYG All Messages By This Member #31555 Having some trouble getting my NanoVNA-H to talk to NanoVNA-App. The app says it's connected via com 3, but it's not controlling the nano, or exchanging any data to and from it. I've tried several baud rates, but no dice. I have not been able to locate what baud rate the Nano's default setting is. I have poured over the Nano manual. Maybe I've just missed it but so far, no help. Would appreciate that info, or how I can find it on the Nano. Ray, W4BYG -- "If you want to build a strong house, I'll give you my engineer's number. If you want to build a strong life, I'll introduce you to my carpenter." Lebron and Heather Lackey -- This email has been checked for viruses by AVG antivirus software. www.avg.com
Stan Dye All Messages By This Member #31556 The nanovna uses the USB protocol, so eventhough it looks like a serial port, it doesn't use a baud rate setting. So that shouldn't matter. For reference, though, mine shows the default 38400/8/n/1 setting in device manager. Your problem is likely something different. Stan toggle quoted message Show quoted text On Sun, Feb 26, 2023, 5:35 PM Ray, W4BYG <w4byg@...> wrote: Having some trouble getting my NanoVNA-H to talk to NanoVNA-App. The app says it's connected via com 3, but it's not controlling the nano, or exchanging any data to and from it. I've tried several baud rates, but no dice. I have not been able to locate what baud rate the Nano's default setting is. I have poured over the Nano manual. Maybe I've just missed it but so far, no help. Would appreciate that info, or how I can find it on the Nano. Ray, W4BYG -- "If you want to build a strong house, I'll give you my engineer's number. If you want to build a strong life, I'll introduce you to my carpenter." Lebron and Heather Lackey -- This email has been checked for viruses by AVG antivirus software. www.avg.com
Doug Hayward All Messages By This Member #31557 Ray, it sounds like you have a device already assigned to COM3. You need to delete it. If your usings Windows open up the Device Manager by right clicking on the Microsoft Logo in the lower left hand corner of your screen. See if you can find a Comport listing. Select it and delete any Prolific Drivers or other ones you see there. Then restart your computer. This might help. Not sure. But worth a try. Doug Hayward K8DRH Cell: 480.773.8955 Email: dhayward@... toggle quoted message Show quoted text -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Ray, W4BYG Sent: Sunday, February 26, 2023 20:35 To: [email protected] Subject: [nanovna-users] Default com baudrate settings? NanoVNA-H Having some trouble getting my NanoVNA-H to talk to NanoVNA-App. The app says it's connected via com 3, but it's not controlling the nano, or exchanging any data to and from it. I've tried several baud rates, but no dice. I have not been able to locate what baud rate the Nano's default setting is. I have poured over the Nano manual. Maybe I've just missed it but so far, no help. Would appreciate that info, or how I can find it on the Nano. Ray, W4BYG -- "If you want to build a strong house, I'll give you my engineer's number. If you want to build a strong life, I'll introduce you to my carpenter." Lebron and Heather Lackey -- This email has been checked for viruses by AVG antivirus software. www.avg.com
Roger Need All Messages By This Member #31566 On Sun, Feb 26, 2023 at 05:34 PM, Ray, W4BYG wrote: Having some trouble getting my NanoVNA-H to talk to NanoVNA-App. The app says it's connected via com 3, but it's not controlling the nano, or exchanging any data to and from it. I've tried several baud rates, but no dice. The baud rate does dot matter on a USB "COM port". I suspect the reason NanoVNA app is not working on your -H is because you are using old firmware. The old firmware used text transfers for data exchange to the PC and if you connect to NanoVNA app nothing happens which is what you are seeing. NanoVNA app requires the binary protocol that DiSlord implemented in the NanoVNA firmware a couple of years ago. Roger
Ray, W4BYG All Messages By This Member #31574 Roger, My NanoVNA-H has v.0.2.3-2-g8ac9166, (not sure of the "g"), dated Build Oct 10, 2019. Does that fall into what you call "old FW"? If so, Don't know what is involved in gaining "the required the binary protocol that DiSlord implemented in the NanoVNA-H firmware a couple of years ago. Thank you for your insight and assistance, Ray, w4byg toggle quoted message Show quoted text On 2/27/2023 13:06, Roger Need via groups.io wrote: On Sun, Feb 26, 2023 at 05:34 PM, Ray, W4BYG wrote: Having some trouble getting my NanoVNA-H to talk to NanoVNA-App. The app says it's connected via com 3, but it's not controlling the nano, or exchanging any data to and from it. I've tried several baud rates, but no dice. The baud rate does dot matter on a USB "COM port". I suspect the reason NanoVNA app is not working on your -H is because you are using old firmware. The old firmware used text transfers for data exchange to the PC and if you connect to NanoVNA app nothing happens which is what you are seeing. NanoVNA app requires the binary protocol that DiSlord implemented in the NanoVNA firmware a couple of years ago. Roger -- "If you want to build a strong house, I'll give you my engineer's number. If you want to build a strong life, I'll introduce you to my carpenter." Lebron and Heather Lackey -- This email has been checked for viruses by AVG antivirus software. www.avg.com
Roger Need All Messages By This Member #31576 On Mon, Feb 27, 2023 at 02:34 PM, Ray, W4BYG wrote: Roger, My NanoVNA-H has v.0.2.3-2-g8ac9166, (not sure of the "g"), dated Build Oct 10, 2019. Does that fall into what you call "old FW"? YES that is very old firmware. Many bugs and improvements to the firmware have been made by DiSlord and Hugen. If so, Don't know what is involved in gaining "the required the binary protocol that DiSlord implemented in the NanoVNA-H firmware a couple of years ago. If you update the firmware in your -H to a recent version you will get the binary transfer protocol and many other useful features. The Absolute Beginners Guide in the file section of this group tells you how to install the DFU drivers that are needed for firmware update and how to install the latest firmware. /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_6.pdf You don't have to register to get the DFU program and drivers. I have put a copy on my Box account for you... Roger

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