The way how to use Arduino UNO R4 MINIMA's LOVE pin

Official Hardware Classic UNO R4 Minima
1

the pin of 'LOVE' is P204.
P204 was not implemented in pins_arduino.h, but it is implemented in io layer (r-ioport.h).
so, you can use it with io layer api.
gist: How to use Arduino UNO R4 MINIMA's LOVE Pin · GitHub
video: how to use LOVE pin on arduino R4 MINIMA - YouTube

void setup() {
  // P204 -> PORT 2, PIN 4
  R_IOPORT_PinCfg(NULL, BSP_IO_PORT_02_PIN_04, IOPORT_CFG_PORT_DIRECTION_OUTPUT);
}

void loop() {
  R_IOPORT_PinWrite(NULL, BSP_IO_PORT_02_PIN_04, BSP_IO_LEVEL_HIGH);
  delay(100);
  R_IOPORT_PinWrite(NULL, BSP_IO_PORT_02_PIN_04, BSP_IO_LEVEL_LOW);
  delay(1000);
}
1 Like
2

I'm just about to upload a video on this too, you beat me to it!

3

I uploaded my video here. It's tied to instead P113 on the WiFi board. I think these may have been intended to work as capacitive touch pads (CTSU pins T00 on Minima and T27 on WiFi), but I haven't been able to figure out the CTSU yet.

1 Like
4

"Love Pin" ?!?!

:flushed: :flushed: :flushed:

5

There is a heart shaped pin (covered in solder) on the back of both new R4 boards.

6

Some sort of PCB designer's joke? An "Easter Egg"?

image
image661×565 40.6 KB