JP1.4 pinout verification

D Heiskell · Post by **D Heiskell** » Sat Nov 02, 2024 5:16 am

Is the JP 1.4 pinout on jp1.4 remote the same as JP1.2/JP1.3?
I have an Inteset 422-4 which i can't read with a DIYGADGET rs232 to jp 1.2/1.3 cable, i am using a ftdi usb cable with it. It works fine on the RCA RCRP05BR, URC-10820N using remote master ir ver 3.1.5.

I can't find any settings on rmir that would enable JP1.4?

Could this have to do with 5v vs 3.3v logic levels in the cable. The one guy who posted about the 422-2 looked like he might have used a usb ftdi 3.3v cable?

D Heiskell · Post by **D Heiskell** » Sat Nov 02, 2024 7:00 am

i used the following ftdi usb adapter to sucessfully download in rmir from 422-4. waveshare Industrial USB to TTL Converter with Original FT232RNL Onboard and Multi Protection Circuits Support Multi Systems Support Win7/8/8.1/10/11, Mac, Linux, Android, Wince

this available through amazon. IT IS 3.3V, which is certainly required for this jp 1.4 remote. I will also be testing on a URC-3680 later which is also jp1.4, and will post findings.

HamburgerHelper1 · Post by **HamburgerHelper1** » Sat Nov 02, 2024 9:10 am

I have no problems with my INT-422-4 using this less expensive cable

https://www.ebay.com/itm/335080899752

Post by **The Robman** » Sat Nov 02, 2024 10:26 am

D Heiskell wrote:Is the JP 1.4 pinout on jp1.4 remote the same as JP1.2/JP1.3?
I have an Inteset 422-4 which i can't read with a DIYGADGET rs232 to jp 1.2/1.3 cable, i am using a ftdi usb cable with it. It works fine on the RCA RCRP05BR, URC-10820N using remote master ir ver 3.1.5.

I can't find any settings on rmir that would enable JP1.4?

Could this have to do with 5v vs 3.3v logic levels in the cable. The one guy who posted about the 422-2 looked like he might have used a usb ftdi 3.3v cable?

D Heiskell wrote:i used the following ftdi usb adapter to sucessfully download in rmir from 422-4. waveshare Industrial USB to TTL Converter with Original FT232RNL Onboard and Multi Protection Circuits Support Multi Systems Support Win7/8/8.1/10/11, Mac, Linux, Android, Wince

this available through amazon. IT IS 3.3V, which is certainly required for this jp 1.4 remote. I will also be testing on a URC-3680 later which is also jp1.4, and will post findings.

As you haven't posted links to any of the items that you refer to, it's hard to know exactly what you are using.

For example, is this the "DIYGADGET rs232 to jp 1.2/1.3 cable" that you're using on your JP1.3 remotes:
https://www.diygadget.com/remote-contro ... al-remotes

You say you're using an "ftdi usb cable" with the Inteset 422-4, do you have a link for that one?

Later you mention a "waveshare Industrial USB to TTL Converter with Original FT232RNL Onboard and Multi Protection Circuits", it this it?
https://www.amazon.com/dp/B087RJ7X32/

D Heiskell · Post by **D Heiskell** » Sat Nov 02, 2024 3:29 pm

Yes that is it. I chose it because it specifically is 3.3v, and has txd,rxd leds and clearly marked pin definitions.. The arduino cables are probably 3.3v, as some listed for arduino specify 3.3v. That clue led me to The waveshare adapter, they are an established company NOT some Chinese eBay listing. I didn't want to to just try something. I noticed people couldn't find previously available adapters, so since you can buy it through Amazon should be available for a while. The 1.4 remotes appear to be all based on the same chip the only thing I could think of why my old cable didn't work would be 3.3v logic levels. At worst you could damage the remote, as ttl levels would drive the pin way above what it should be.If some one can successfully upload/download to a jp1.4 remote with an old ttl -5v adapter then I will happily admit to being wrong.

For anyone interested diygadget has a jp1/2/3 extension adapter. I used one of those and plugged the waveshare pins into it.
https://www.diygadget.com/jp1-jp1-1-jp1 ... on-adapter
Waveshare on Amazon Link or look at previous post
https://www.amazon.com/dp/B087RJ7X32/

JP1 Remotes