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Update to use e22 instead of sx1278

This commit is contained in:
Simon Milvert 2026-05-25 21:38:02 +02:00
parent f27a3e026a
commit c9dad05631
7 changed files with 203 additions and 35 deletions
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2
sender/platformio.ini
View File

@ -19,6 +19,6 @@ lib_deps =
zinggjm/GxEPD2@^1.5.6
bblanchon/ArduinoJson@^7.0.4
peterus/esp-logger@^1.0.0
sandeepmistry/LoRa@^0.8.0
jgromes/RadioLib@^6.0.0
olikraus/U8g2_for_Adafruit_GFX@^1.8.0
milesburton/DallasTemperature@^3.11.0

139
sender/src/lorahandler.cpp
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@ -6,50 +6,131 @@
extern logging::Logger logger;
extern Config config;
LoraHandler::LoraHandler() {
// Initialize with new SX1268 radio
}
void LoraHandler::setup()
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "LoRa", "Initializing SX1268 with RadioLib!");
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "LoRa", "Set SPI pins!");
SPI.begin(RADIO_SCK, RADIO_MISO, RADIO_MOSI, RADIO_CS);
LoRa.setPins(RADIO_CS, RADIO_RST, RADIO_IRQ);
// Create new SPI instance for LoRa
spi = new SPIClass(VSPI);
spi->begin(RADIO_SCK, RADIO_MISO, RADIO_MOSI, RADIO_CS);
long freq = config.loraConfig.frequency;
if (!LoRa.begin(freq))
// Create SX1268 instance
radio = new SX1268(new SPIDriver(spi, RADIO_CS));
// Configure RXEN/TXEN pins
pinMode(RADIO_RXEN, OUTPUT);
pinMode(RADIO_TXEN, OUTPUT);
digitalWrite(RADIO_RXEN, LOW);
digitalWrite(RADIO_TXEN, LOW);
// Initialize LoRa module
int state = radio->begin();
if (state != RADIOLIB_ERR_NONE)
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_ERROR, "LoRa", "Starting LoRa failed!");
// show_display("ERROR", "Starting LoRa failed!");
while (true)
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_ERROR, "LoRa", "LoRa init failed: %i", state);
while (true) {
delay(1000);
}
}
LoRa.setSpreadingFactor(config.loraConfig.spreadingFactor);
LoRa.setSignalBandwidth(config.loraConfig.signalBandwidth);
LoRa.setCodingRate4(config.loraConfig.codingRate4);
LoRa.enableCrc();
LoRa.setTxPower(config.loraConfig.power);
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "LoRa", "LoRa init done!");
String currentLoRainfo = "LoRa Freq: " + String(config.loraConfig.frequency) + " / SF:" + String(config.loraConfig.spreadingFactor) + " / CR: " + String(config.loraConfig.codingRate4);
// Configure LoRa parameters
long freq = config.loraConfig.frequency;
state = radio->setFrequency(freq);
if (state != RADIOLIB_ERR_NONE)
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_ERROR, "LoRa", "setFrequency failed: %i", state);
}
state = radio->setSpreadingFactor(config.loraConfig.spreadingFactor);
if (state != RADIOLIB_ERR_NONE)
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_ERROR, "LoRa", "setSpreadingFactor failed: %i", state);
}
state = radio->setBandwidth(config.loraConfig.signalBandwidth);
if (state != RADIOLIB_ERR_NONE)
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_ERROR, "LoRa", "setBandwidth failed: %i", state);
}
state = radio->setCodingRate(config.loraConfig.codingRate4);
if (state != RADIOLIB_ERR_NONE)
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_ERROR, "LoRa", "setCodingRate failed: %i", state);
}
state = radio->setOutputPower(config.loraConfig.power);
if (state != RADIOLIB_ERR_NONE)
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_ERROR, "LoRa", "setOutputPower failed: %i", state);
}
// Enable CRC
radio->setCRC(true);
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "LoRa", "SX1268 initialized successfully!");
String currentLoRainfo = "LoRa Freq: " + String(freq) + " / SF:" + String(config.loraConfig.spreadingFactor) + " / CR: " + String(config.loraConfig.codingRate4);
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "LoRa", currentLoRainfo.c_str());
}
void LoraHandler::sendPacket(const String& data)
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "LoRa Tx", "Sending: %s", data.c_str());
// Enable TX mode
digitalWrite(RADIO_TXEN, HIGH);
digitalWrite(RADIO_RXEN, LOW);
delay(10);
int state = radio->transmit(data);
// Disable TX mode
digitalWrite(RADIO_TXEN, LOW);
if (state != RADIOLIB_ERR_NONE)
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_ERROR, "LoRa Tx", "Transmit failed: %i", state);
}
else
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "LoRa Tx", "Packet sent!");
}
}
ReceivedLoRaPacket LoraHandler::receivePacket()
{
ReceivedLoRaPacket receivedLoraPacket;
String packet = "";
int packetSize = LoRa.parsePacket();
if (packetSize)
// Enable RX mode
digitalWrite(RADIO_RXEN, HIGH);
digitalWrite(RADIO_TXEN, LOW);
int state = radio->receive(0); // 0 = non-blocking
if (state == RADIOLIB_ERR_RX_ONGOING)
{
while (LoRa.available())
{
int inChar = LoRa.read();
packet += (char)inChar;
}
receivedLoraPacket.text = packet;
receivedLoraPacket.rssi = LoRa.packetRssi();
receivedLoraPacket.snr = LoRa.packetSnr();
receivedLoraPacket.freqError = LoRa.packetFrequencyError();
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "LoRa Rx", "---> %s", packet.c_str());
// No packet received yet
return receivedLoraPacket;
}
else if (state == RADIOLIB_ERR_NONE)
{
// Packet received!
receivedLoraPacket.text = radio->readData();
receivedLoraPacket.rssi = radio->getRSSI();
receivedLoraPacket.snr = radio->getSNR();
receivedLoraPacket.freqError = radio->getFrequencyError();
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "LoRa Rx", "---> %s (RSSI: %d, SNR: %.1f)",
receivedLoraPacket.text.c_str(), receivedLoraPacket.rssi, receivedLoraPacket.snr);
}
else
{
logger.log(logging::LoggerLevel::LOGGER_LEVEL_ERROR, "LoRa Rx", "Receive error: %i", state);
}
return receivedLoraPacket;
}

7
sender/src/lorahandler.hpp
View File

@ -2,8 +2,7 @@
#define LORAHANDLER_H
#include "config.hpp"
#include <SPI.h>
#include <LoRa.h>
#include <RadioLib.h>
struct ReceivedLoRaPacket {
String text;
@ -14,9 +13,13 @@ struct ReceivedLoRaPacket {
class LoraHandler {
public:
LoraHandler();
void setup();
void sendPacket(const String& data);
ReceivedLoRaPacket receivePacket();
private:
SX1268* radio;
SPIClass* spi;
};
#endif /* LORAHANDLER_H */

30
sender/src/main.cpp
View File

@ -2,10 +2,16 @@
#include "config.hpp"
#include "eink.hpp"
#include "io.hpp"
#include "lorahandler.hpp"
#include "tpl5110.hpp"
#include "pins.hpp"
#include <ArduinoJson.h>
logging::Logger logger;
Eink eink;
IO io;
LoraHandler lora;
TPL5110 tpl5110(TPL5110_DONE);
RTC_DATA_ATTR int bootCount = 0;
RTC_DATA_ATTR int updateCount = 0;
@ -22,6 +28,8 @@ void setup()
#ifndef DEBUG
logger.setDebugLevel(logging::LoggerLevel::LOGGER_LEVEL_INFO);
#endif
tpl5110.setup(); // Initialize TPL5110 timer
io.setup_io();
io.set_low_power();
@ -57,7 +65,29 @@ void setup()
eink.show_count(180 - 24 - 4 - 100 - 60, 12, (float)bootCount, "c: ");
eink.show_count(180 - 24 - 4 - 100 - 60 - 50, 12, (float)bootCount, "u: ");
eink.display(true);
// Initialize LoRa and send data
lora.setup();
// Create JSON payload
JsonDocument doc;
doc["temp"] = temp;
doc["battery"] = battery;
doc["boot"] = bootCount;
doc["update"] = updateCount;
String payload;
serializeJson(doc, payload);
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "MAIN", "Sending LoRa payload: %s", payload.c_str());
lora.sendPacket(payload);
delay(1000); // Give time for transmission
}
// Signal TPL5110 that work is done - device will sleep
tpl5110.signalDone();
delay(100);
io.set_deep_sleep();
}

7
sender/src/pins.hpp
View File

@ -11,13 +11,18 @@ const int EPD_RSET = 16;
const int EPD_DC = 17;
const int EPD_CS = 5;
// Pin assignments for LORA module
// Pin assignments for LORA module (SX1268 E22-400M22S)
const int RADIO_SCK = 5;
const int RADIO_MISO = 19;
const int RADIO_MOSI = 27;
const int RADIO_CS = 18; // CS --> NSS
const int RADIO_RST = 14;
const int RADIO_IRQ = 26; // IRQ --> DIO0
const int RADIO_RXEN = 2; // RX Enable
const int RADIO_TXEN = 13; // TX Enable
// TPL5110 timer module
const int TPL5110_DONE = 15; // DONE signal
// Battery pin
const int ADC_BATTERY = 35; //builtin = 35

32
sender/src/tpl5110.cpp Normal file
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@ -0,0 +1,32 @@
#include "tpl5110.hpp"
#include "logger.h"
extern logging::Logger logger;
TPL5110::TPL5110(int donePin) : _donePin(donePin) {
}
void TPL5110::setup() {
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "TPL5110", "Initializing TPL5110 timer!");
pinMode(_donePin, OUTPUT);
digitalWrite(_donePin, LOW); // DONE pin starts LOW
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "TPL5110", "TPL5110 initialized!");
}
void TPL5110::signalDone() {
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "TPL5110", "Signaling DONE to TPL5110!");
digitalWrite(_donePin, HIGH);
delay(100); // Hold HIGH for 100ms
digitalWrite(_donePin, LOW);
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "TPL5110", "DONE signal sent - device will sleep now");
}
void TPL5110::setActive() {
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "TPL5110", "TPL5110 set to ACTIVE");
digitalWrite(_donePin, LOW);
}
void TPL5110::setInactive() {
logger.log(logging::LoggerLevel::LOGGER_LEVEL_INFO, "TPL5110", "TPL5110 set to INACTIVE");
digitalWrite(_donePin, HIGH);
}

17
sender/src/tpl5110.hpp Normal file
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@ -0,0 +1,17 @@
#ifndef TPL5110_H
#define TPL5110_H
#include <Arduino.h>
class TPL5110 {
public:
TPL5110(int donePin);
void setup();
void signalDone();
void setActive();
void setInactive();
private:
int _donePin;
};
#endif /* TPL5110_H */