RAK12002 REAL code example

WisBlock
1

Hi, I need a real code example to use RAK4631 on a RAK19007 with RAK12002

on the provided 3 examples there is no info whether it needs the SLOT to be powered on before, after and in between. Nor explains how to.

then when trying to wake up from RTC the definitions are not clear too.

2

Hi @richonguzman ,

RAK12002 is always powered. It is directly tied to 3.3V supply of WisBlock Baseboard.

If you will use it’s interrupt for wake up, the IO pins to use depend on what sensor SLOT it is connected.

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image1127×934 241 KB

Many examples how to setup alarm, etc. is on the library - GitHub - melopero/Melopero_RV-3028_Arduino_Library

3

Hi @carlrowan,

so I start the board (arduino code in vscode + platformio)

#include <Melopero_RV3028.h>
Melopero_RV3028 rtc;

setup() {
    // definition of led green and blue
    pinMode(both_leds, OUTPUT);
    Wire.setPins(BOARD_SDA, BOARD_SCL);
    Wire.begin();
    rtc.initI2C();
    rtc.enablePeriodicTimer(WAKEUP_INTERVAL, Hz1_60, true, true);
    delay(1000);
    processBlinkingLedsFor5secs();
    // WB_IO2 = Pin 34 = P1.02
        uint32_t physicalPin = g_ADigitalPinMap[RTC_INT_PIN]; // Debería ser 34
        
        Serial.print("Configuring wakeup on physical pin: ");
        Serial.println(physicalPin);
        
        if (physicalPin >= 32) {
            // Pin está en P1 (32-47)
            uint32_t p1_pin = physicalPin - 32; // P1.02
            
            Serial.print("Configuring P1.");
            Serial.println(p1_pin);
            
            // Configurar P1.02 con SENSE_LOW
            NRF_P1->PIN_CNF[p1_pin] =
                (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos) |
                (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
                (GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) |
                (GPIO_PIN_CNF_SENSE_Low << GPIO_PIN_CNF_SENSE_Pos);
            
            // CRÍTICO: Limpiar LATCH del puerto P1
            NRF_P1->LATCH = (1UL << p1_pin);
            
        } else {
            // Pin en P0
            NRF_P0->PIN_CNF[physicalPin] =
                (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos) |
                (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
                (GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) |
                (GPIO_PIN_CNF_SENSE_Low << GPIO_PIN_CNF_SENSE_Pos);
            
            NRF_P0->LATCH = (1UL << physicalPin);
        }

    rtc.clearInterruptFlags(false, true, false);
    delay(1000);
    bothLedsOFF();
    NRF_POWER->SYSTEMOFF = 1;
}

Expected behavior, wake up from deep sleep with the RTC RAK12002 connected to SLOT_A, but no success