ESPNOW with light sleep mode not working

Projects Programming
1

Hello, I am using a ESP32 to tell another ESP32 via ESPNOW to turn on it's built-in LED. I need to put the first ESP32 into light sleep mode to conserve battery life. I put the wakeup cause for the first ESP32 to wakeup when one of its built-in touch-pins are pressed. I then put it into light sleep mode. I also turned off the wifi before I put it into light sleep mode and on after it woke up from light sleep mode. When I uploaded the code, the LED of the second ESP32 would not turn on. Here is my code...

Code for first ESP32:

#include <Arduino.h>
#include <WiFi.h>
#include <esp_now.h>
#include <esp_wifi.h>

uint8_t addressB2[] = {0xEC, 0x94, 0xCB, 0x4C, 0x76, 0x18};

touch_pad_t touchPin;
void callback() {}

void setup()
{
    Serial.begin(115200);
    WiFi.mode(WIFI_STA);

    if (esp_now_init() != ESP_OK)
    {
        Serial.println("Error initializing ESP-NOW");
        return;
    }

    esp_now_peer_info_t peerInfo;
    memcpy(peerInfo.peer_addr, addressB2, 6);
    peerInfo.channel = 0;  
    peerInfo.encrypt = false;
  
    if(esp_now_add_peer(&peerInfo) != ESP_OK)
    {
        Serial.println("Failed to add peer");
        return;
    }
}

void loop()
{
    esp_wifi_stop();
    touchAttachInterrupt(15, callback, 70);
    esp_sleep_enable_touchpad_wakeup();
    esp_light_sleep_start();

    touchPin = esp_sleep_get_touchpad_wakeup_status();
    int touch = 0;

    if(touchPin == 3)
    {
        touch = 1;
    }

    else
    {   
        touch = 0;
    }

    esp_wifi_start();
    esp_now_send(addressB2, (uint8_t*) &touch, sizeof(touch));
}

Code for second ESP32:

#include <Arduino.h>
#include <WiFi.h>
#include <esp_now.h>

uint8_t addressB1[] = {0xEC, 0x94, 0xCB, 0x4C, 0xB2, 0xF0};

void OnDataRecv(const uint8_t * mac, const uint8_t *data, int len)
{
    int * messagePointer = (int*)data;

    if(*messagePointer == 1) { Serial.println("Touched"); digitalWrite(2, HIGH); delay(1000); }
    else { Serial.println("Not Touched"); digitalWrite(2, LOW); }
}

void setup()
{
    Serial.begin(115200);
    pinMode(2, OUTPUT);
    WiFi.mode(WIFI_STA);

    if (esp_now_init() != ESP_OK)
    {
        Serial.println("Error initializing ESP-NOW");
        return;
    }

    esp_now_register_recv_cb(OnDataRecv);
}

void loop()
{
    
}

Any advice for how to use ESPNOW and put it into light sleep mode too? Thanks in advance.

2

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