Tech500

void goToSleep(void) {
  Serial.println("=== PREPARING FOR DEEP SLEEP ===");
  Serial.printf("DIO1 pin state before sleep: %d\n", digitalRead(RADIO_DIO1_PIN));
  Serial.printf("Wake pin (GPIO16) state before sleep: %d\n", digitalRead(WAKE_PIN));
  
  // Set up the radio for duty cycle receiving
  radio.startReceiveDutyCycleAuto();

  Serial.println("Configuring RTC GPIO and deep sleep wake-up...");

Tech500

EoRa PI Foundation --Receiver
Ebyte's EoRa-S3-900TB Dev Board
ESP32-S# dev board with SX1262 LoRa module
175 uA LoRa rmote receiver --Load Controller

Deep Sleep with external wake up by radio!!!

00:24:02.366 -> ESP-ROM:esp32s3-20210327
00:24:51.761 -> initBoard
00:24:51.761 -> Cold Boot or Other Start-up

Tech500

CD74HC73E (Dual JK Flip-Flop with Reset, PDIP-14

# CD74HC73E Pinout (PDIP-14)

| Pin | Name   | Description                          |
|-----|--------|--------------------------------------|
| 1   | 1CLR   | Asynchronous Clear (Flip-Flop 1)     |
| 2   | 1CLK   | Clock Input (Flip-Flop 1)            |
| 3   | 1J     | J Input (Flip-Flop 1)                |
| 4 | 1K | K Input (Flip-Flop 1) |

Tech500

/*
  Claude's version 112 Latest code with J-K Flip-Flop (74HC73) untested. Part on order.    Code is
  a works in progress.  Cold boot is working, repeating cycle after cold boot is not working, 
  DIO1 signal is too fast; this is where the 74HC73 comes in to toggle and hold the wake up pulse 
  from the LoRa radiop module.  DIO1 signal is used for Wake on Radio, puts radio into listen 
  mode and wakes Deep Sleeping ESP32 using external wake up..  

   Project uses Ebyte's, provided "boards.h" board configuration and "utilites.h" pin assignments.  
   Coded by Claude with Design and prompting code execuyion.  Troubleshooting provided by Claude 
   and William Lucid.

Tech500

#include "eora_s3_power_mgmt.h"

void setup() {
    Serial.begin(115200);
    delay(2000);
    
    Serial.println("No-I2C Power Test");
    
 // Test config - don't touch ANY GPIOs
eora_power_config_t config = {

Tech500

18:19:52.354 -> //<------------------- Power on ------------------------
18:19:52.354 -> 
18:19:52.354 -> FS init: ok
18:19:52.354 -> CPU Frequency: 80 MHz  //<------------------ Power saving by slowing microcontroller
18:19:52.354 -> initBoard  //<------------------------------ Init caused by reset reason ESP_RST_POWERON
18:19:53.360 -> [SX126x] Initializing ... success!
18:19:53.391 -> [SX126x] Starting to listen ... success!  //<--------- Need to establish listening duty cycle
18:19:53.391 -> 
18:19:53.391 -> === PREPARING FOR DEEP SLEEP ===
18:19:53.391 -> DIO1 pin state before sleep: 0

Tech500

Does this need modification to use with DeepSleep.ini?

void OnRxDone(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr) {
  Serial.println("WOR wake triggered: Packet received");

  // Convert payload bytes to String
  String packet;
  for (uint16_t i = 0; i < size; i++) {
    packet += (char)payload[i];
  }

Tech500

/**
 * @file DeepSleep.ino
 * @author Bernd Giesecke (bernd.giesecke@rakwireless.com)
 * @brief Low power example for ESP32 and SX1262
 * 
 * This examples shows LoRa P2P communication with a ESP32 using the 
 * sleep function of the ESP32 to lower the power consumption.
 * The ESP32 goes into sleep after initializing the SX1262 to listen
 * using the RxDutyCycle mode. In this mode, the SX1262 is sleeping as
 * well, only waking up to check if any preamble signal is detected.

Tech500

//New Ebyte, EoRa PI (EoRa-S3-900TB) LoRa development board 915.0 Mhz
//WifiManager library + setup for WiFiManage tzpau (sp?)
//William Lucid in colboration with Copilot, ChatGPT, Gemini 07/11/2025 @ 20:24 EDT

//Ardino IDE:  ESP32S3 Dev Module
//Board Manager:  2.0.18

#include <Arduino.h>
#include <SPI.h>
#include <SX126x-Arduino.h>

Tech500

//EoRa_PI_Transmitter.ino  --a work-in-progress
//New EoRa PI Radio 915.0 Mhz (EoRa-S3-900TB) 
//Only changes new radio and GPIO pins used for SDA, SCL, KY002S, and INA226
//WifiManager library + setup for WiFiManage tzpau (sp?)
//William Lucid in colboration with ChatGPT 07/09/2025 @ 23:43 EDT

//Ardino IDE:  ESP32S3 Dev Module 
//Board Manager:  2.0.18

//EoRa_PI_Transmitter