RT-880 Demonstration of problem solving
Added 2025-06-29 01:03:44 +0000 UTCWhen you're working with unknowns.
GPIO 4 when set HIGH engages the filter not LOW,
I meant that GPIO-5 engages the UHF filter.
Comments
I like it when you post content like this. It is nice watching how you tackle the different challenges each radio requires.
Russ T Shackleford
2025-06-30 18:37:26 +0000 UTCTnks for sharing Marcus I hope the new firmware will also work on the Iradio uv 98 plus gps!
Frank G
2025-06-30 10:22:03 +0000 UTCGPIO = General Purpose Input Output, the key is "General Purpose" they can be wired to anything the manufacturer wants in exactly the same way MCU GPIOs are.
Marcus Dudley
2025-06-29 19:44:59 +0000 UTCPossibly stupid question, I'm just curious...is the GPIO usage on the 4819 not consistent across all radios that use the chip? Or are you saying that the usage is different in the 880 to (say) the 890 or 900?
David
2025-06-29 17:42:52 +0000 UTC
