An unseen model: SFRA619

[denjhang]

[keirf]

Does it work?

[denjhang]

I tried it a bit, and successfully uploaded the firmware using DFU mode (I used a USB male-to-male cable and directly connected it to my computer). The OLED mini display has been installed, but I found that the modified version of the PCB does not have DT And CLK leads, so it is impossible to install a rotary encoder (unless I use a flying lead).

[keirf]

I think it must be an old model.

[duca750]

It is not old, I have received two for my equipment today, has someone found a solution for the rotary encoder? Thanks.

[keirf]

Depending where you got it from it could have sat in stock a long time. It doesn't look very shiny and new. Compare usb socket on this ticket of a brand new model: #539

[wistal]

Just leave a comment to confirm this model works, I got this model recently, after flash the FF firmware, it works well, and it also supports OLED screen.
UART header in J4 and 4 pin i2c header in J7 as above picture.