"Original concept and development: William Lucid, with AI development assistance for code architecture and documentation. Hardware platform: EoRa-S3-900TB from EbyeIoT.com"
A complete, production-ready LoRa sensor network solution for environmental monitoring
Company Profile: Ebyte is a professional manufacturer specializing in wireless communication modules and IoT solutions. Their extensive product line includes LoRa, WiFi, Bluetooth, and cellular communication modules used in industrial and commercial applications worldwide.
Why Ebyte for Ultra-Low Power IoT:
This document summarizes the power measurements, calculations, and battery-life estimates for the EoRa Pi using radio.sleep and ESP32-S3 deep sleep.
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...");
| 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 |
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) |
| /* | |
| 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. |
| #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 = { |
| 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 |
| 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]; | |
| } |