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acac20dc89b6bc183125bcb9341eb33c56e1ece8
MeshCore/examples/simple_repeater/main.cpp
Rastislav Vysoky acac20dc89 Added basic support for Station G2
2025-03-07 15:34:00 +01:00

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#include <Arduino.h> // needed for PlatformIO
#include <Mesh.h>
#if defined(NRF52_PLATFORM)
#include <InternalFileSystem.h>
#elif defined(ESP32)
#include <SPIFFS.h>
#endif
#define RADIOLIB_STATIC_ONLY 1
#include <RadioLib.h>
#include <helpers/ArduinoHelpers.h>
#include <helpers/StaticPoolPacketManager.h>
#include <helpers/SimpleMeshTables.h>
#include <helpers/IdentityStore.h>
#include <helpers/AutoDiscoverRTCClock.h>
#include <helpers/AdvertDataHelpers.h>
#include <helpers/TxtDataHelpers.h>
#include <helpers/CommonCLI.h>
#include <RTClib.h>
/* ------------------------------ Config -------------------------------- */
#ifndef FIRMWARE_BUILD_DATE
#define FIRMWARE_BUILD_DATE "7 Mar 2025"
#endif
#ifndef FIRMWARE_VERSION
#define FIRMWARE_VERSION "v1.2.1"
#endif
#ifndef LORA_FREQ
#define LORA_FREQ 915.0
#endif
#ifndef LORA_BW
#define LORA_BW 250
#endif
#ifndef LORA_SF
#define LORA_SF 10
#endif
#ifndef LORA_CR
#define LORA_CR 5
#endif
#ifndef LORA_TX_POWER
#define LORA_TX_POWER 20
#endif
#ifndef ADVERT_NAME
#define ADVERT_NAME "repeater"
#endif
#ifndef ADVERT_LAT
#define ADVERT_LAT 0.0
#endif
#ifndef ADVERT_LON
#define ADVERT_LON 0.0
#endif
#ifndef ADMIN_PASSWORD
#define ADMIN_PASSWORD "password"
#endif
#if defined(HELTEC_LORA_V3)
#include <helpers/HeltecV3Board.h>
#include <helpers/CustomSX1262Wrapper.h>
static HeltecV3Board board;
#elif defined(HELTEC_LORA_V2)
#include <helpers/HeltecV2Board.h>
#include <helpers/CustomSX1276Wrapper.h>
static HeltecV2Board board;
#elif defined(ARDUINO_XIAO_ESP32C3)
#include <helpers/XiaoC3Board.h>
#include <helpers/CustomSX1262Wrapper.h>
#include <helpers/CustomSX1268Wrapper.h>
static XiaoC3Board board;
#elif defined(SEEED_XIAO_S3) || defined(LILYGO_T3S3)
#include <helpers/ESP32Board.h>
#include <helpers/CustomSX1262Wrapper.h>
static ESP32Board board;
#elif defined(LILYGO_TLORA)
#include <helpers/LilyGoTLoraBoard.h>
#include <helpers/CustomSX1276Wrapper.h>
static LilyGoTLoraBoard board;
#elif defined(STATION_G2)
#include <helpers/StationG2Board.h>
#include <helpers/CustomSX1262Wrapper.h>
static StationG2Board board;
#elif defined(RAK_4631)
#include <helpers/nrf52/RAK4631Board.h>
#include <helpers/CustomSX1262Wrapper.h>
static RAK4631Board board;
#elif defined(HELTEC_T114)
#include <helpers/nrf52/T114Board.h>
#include <helpers/CustomSX1262Wrapper.h>
static T114Board board;
#elif defined(LILYGO_TECHO)
#include <helpers/nrf52/TechoBoard.h>
#include <helpers/CustomSX1262Wrapper.h>
static TechoBoard board;
#else
#error "need to provide a 'board' object"
#endif
#ifdef DISPLAY_CLASS
#include <helpers/ui/SSD1306Display.h>
static DISPLAY_CLASS display;
#include "UITask.h"
static UITask ui_task(display);
#endif
#define PACKET_LOG_FILE "/packet_log"
/* ------------------------------ Code -------------------------------- */
#define CMD_GET_STATUS 0x01
#define RESP_SERVER_LOGIN_OK 0 // response to ANON_REQ
struct RepeaterStats {
uint16_t batt_milli_volts;
uint16_t curr_tx_queue_len;
uint16_t curr_free_queue_len;
int16_t last_rssi;
uint32_t n_packets_recv;
uint32_t n_packets_sent;
uint32_t total_air_time_secs;
uint32_t total_up_time_secs;
uint32_t n_sent_flood, n_sent_direct;
uint32_t n_recv_flood, n_recv_direct;
uint16_t n_full_events;
int16_t last_snr; // x 4
uint16_t n_direct_dups, n_flood_dups;
};
struct ClientInfo {
mesh::Identity id;
uint32_t last_timestamp, last_activity;
uint8_t secret[PUB_KEY_SIZE];
bool is_admin;
int8_t out_path_len;
uint8_t out_path[MAX_PATH_SIZE];
};
#define MAX_CLIENTS 4
// NOTE: need to space the ACK and the reply text apart (in CLI)
#define CLI_REPLY_DELAY_MILLIS 1500
class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
RadioLibWrapper* my_radio;
FILESYSTEM* _fs;
RADIO_CLASS* _phy;
mesh::MainBoard* _board;
unsigned long next_local_advert;
bool _logging;
NodePrefs _prefs;
CommonCLI _cli;
uint8_t reply_data[MAX_PACKET_PAYLOAD];
ClientInfo known_clients[MAX_CLIENTS];
ClientInfo* putClient(const mesh::Identity& id) {
uint32_t min_time = 0xFFFFFFFF;
ClientInfo* oldest = &known_clients[0];
for (int i = 0; i < MAX_CLIENTS; i++) {
if (known_clients[i].last_activity < min_time) {
oldest = &known_clients[i];
min_time = oldest->last_activity;
}
if (id.matches(known_clients[i].id)) return &known_clients[i]; // already known
}
oldest->id = id;
oldest->out_path_len = -1; // initially out_path is unknown
oldest->last_timestamp = 0;
self_id.calcSharedSecret(oldest->secret, id); // calc ECDH shared secret
return oldest;
}
int handleRequest(ClientInfo* sender, uint8_t* payload, size_t payload_len) {
uint32_t now = getRTCClock()->getCurrentTimeUnique();
memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
switch (payload[0]) {
case CMD_GET_STATUS: { // guests can also access this now
RepeaterStats stats;
stats.batt_milli_volts = board.getBattMilliVolts();
stats.curr_tx_queue_len = _mgr->getOutboundCount();
stats.curr_free_queue_len = _mgr->getFreeCount();
stats.last_rssi = (int16_t) my_radio->getLastRSSI();
stats.n_packets_recv = my_radio->getPacketsRecv();
stats.n_packets_sent = my_radio->getPacketsSent();
stats.total_air_time_secs = getTotalAirTime() / 1000;
stats.total_up_time_secs = _ms->getMillis() / 1000;
stats.n_sent_flood = getNumSentFlood();
stats.n_sent_direct = getNumSentDirect();
stats.n_recv_flood = getNumRecvFlood();
stats.n_recv_direct = getNumRecvDirect();
stats.n_full_events = getNumFullEvents();
stats.last_snr = (int16_t)(my_radio->getLastSNR() * 4);
stats.n_direct_dups = ((SimpleMeshTables *)getTables())->getNumDirectDups();
stats.n_flood_dups = ((SimpleMeshTables *)getTables())->getNumFloodDups();
memcpy(&reply_data[4], &stats, sizeof(stats));
return 4 + sizeof(stats); // reply_len
}
}
// unknown command
return 0; // reply_len
}
mesh::Packet* createSelfAdvert() {
uint8_t app_data[MAX_ADVERT_DATA_SIZE];
uint8_t app_data_len;
{
AdvertDataBuilder builder(ADV_TYPE_REPEATER, _prefs.node_name, _prefs.node_lat, _prefs.node_lon);
app_data_len = builder.encodeTo(app_data);
}
return createAdvert(self_id, app_data, app_data_len);
}
File openAppend(const char* fname) {
#if defined(NRF52_PLATFORM)
return _fs->open(fname, FILE_O_WRITE);
#else
return _fs->open(fname, "a", true);
#endif
}
protected:
float getAirtimeBudgetFactor() const override {
return _prefs.airtime_factor;
}
bool allowPacketForward(const mesh::Packet* packet) override {
return !_prefs.disable_fwd;
}
const char* getLogDateTime() override {
static char tmp[32];
uint32_t now = getRTCClock()->getCurrentTime();
DateTime dt = DateTime(now);
sprintf(tmp, "%02d:%02d:%02d - %d/%d/%d U", dt.hour(), dt.minute(), dt.second(), dt.day(), dt.month(), dt.year());
return tmp;
}
void logRx(mesh::Packet* pkt, int len, float score) override {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": RX, len=%d (type=%d, route=%s, payload_len=%d) SNR=%d RSSI=%d score=%d",
len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len,
(int)_radio->getLastSNR(), (int)_radio->getLastRSSI(), (int)(score*1000));
if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ
|| pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
} else {
f.printf("\n");
}
f.close();
}
}
}
void logTx(mesh::Packet* pkt, int len) override {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": TX, len=%d (type=%d, route=%s, payload_len=%d)",
len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ
|| pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
} else {
f.printf("\n");
}
f.close();
}
}
}
void logTxFail(mesh::Packet* pkt, int len) override {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": TX FAIL!, len=%d (type=%d, route=%s, payload_len=%d)\n",
len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
f.close();
}
}
}
int calcRxDelay(float score, uint32_t air_time) const override {
if (_prefs.rx_delay_base <= 0.0f) return 0;
return (int) ((pow(_prefs.rx_delay_base, 0.85f - score) - 1.0) * air_time);
}
uint32_t getRetransmitDelay(const mesh::Packet* packet) override {
uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.tx_delay_factor);
return getRNG()->nextInt(0, 6)*t;
}
uint32_t getDirectRetransmitDelay(const mesh::Packet* packet) override {
uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.direct_tx_delay_factor);
return getRNG()->nextInt(0, 6)*t;
}
void onAnonDataRecv(mesh::Packet* packet, uint8_t type, const mesh::Identity& sender, uint8_t* data, size_t len) override {
if (type == PAYLOAD_TYPE_ANON_REQ) { // received an initial request by a possible admin client (unknown at this stage)
uint32_t timestamp;
memcpy(&timestamp, data, 4);
bool is_admin;
data[len] = 0; // ensure null terminator
if (strcmp((char *) &data[4], _prefs.password) == 0) { // check for valid password
is_admin = true;
} else if (strcmp((char *) &data[4], _prefs.guest_password) == 0) { // check guest password
is_admin = false;
} else {
#if MESH_DEBUG
MESH_DEBUG_PRINTLN("Invalid password: %s", &data[4]);
#endif
return;
}
auto client = putClient(sender); // add to known clients (if not already known)
if (timestamp <= client->last_timestamp) {
MESH_DEBUG_PRINTLN("Possible login replay attack!");
return; // FATAL: client table is full -OR- replay attack
}
MESH_DEBUG_PRINTLN("Login success!");
client->last_timestamp = timestamp;
client->last_activity = getRTCClock()->getCurrentTime();
client->is_admin = is_admin;
uint32_t now = getRTCClock()->getCurrentTimeUnique();
memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
#if 0
memcpy(&reply_data[4], "OK", 2); // legacy response
#else
reply_data[4] = RESP_SERVER_LOGIN_OK;
reply_data[5] = 0; // NEW: recommended keep-alive interval (secs / 16)
reply_data[6] = is_admin ? 1 : 0;
reply_data[7] = 0; // FUTURE: reserved
getRNG()->random(&reply_data[8], 4); // random blob to help packet-hash uniqueness
#endif
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
mesh::Packet* path = createPathReturn(sender, client->secret, packet->path, packet->path_len,
PAYLOAD_TYPE_RESPONSE, reply_data, 12);
if (path) sendFlood(path);
} else {
mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, sender, client->secret, reply_data, 12);
if (reply) {
if (client->out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, client->out_path, client->out_path_len);
} else {
sendFlood(reply);
}
}
}
}
}
int matching_peer_indexes[MAX_CLIENTS];
int searchPeersByHash(const uint8_t* hash) override {
int n = 0;
for (int i = 0; i < MAX_CLIENTS; i++) {
if (known_clients[i].id.isHashMatch(hash)) {
matching_peer_indexes[n++] = i; // store the INDEXES of matching contacts (for subsequent 'peer' methods)
}
}
return n;
}
void getPeerSharedSecret(uint8_t* dest_secret, int peer_idx) override {
int i = matching_peer_indexes[peer_idx];
if (i >= 0 && i < MAX_CLIENTS) {
// lookup pre-calculated shared_secret
memcpy(dest_secret, known_clients[i].secret, PUB_KEY_SIZE);
} else {
MESH_DEBUG_PRINTLN("getPeerSharedSecret: Invalid peer idx: %d", i);
}
}
void onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_idx, const uint8_t* secret, uint8_t* data, size_t len) override {
int i = matching_peer_indexes[sender_idx];
if (i < 0 || i >= MAX_CLIENTS) { // get from our known_clients table (sender SHOULD already be known in this context)
MESH_DEBUG_PRINTLN("onPeerDataRecv: invalid peer idx: %d", i);
return;
}
auto client = &known_clients[i];
if (type == PAYLOAD_TYPE_REQ) { // request (from a Known admin client!)
uint32_t timestamp;
memcpy(&timestamp, data, 4);
if (timestamp > client->last_timestamp) { // prevent replay attacks
int reply_len = handleRequest(client, &data[4], len - 4);
if (reply_len == 0) return; // invalid command
client->last_timestamp = timestamp;
client->last_activity = getRTCClock()->getCurrentTime();
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
mesh::Packet* path = createPathReturn(client->id, secret, packet->path, packet->path_len,
PAYLOAD_TYPE_RESPONSE, reply_data, reply_len);
if (path) sendFlood(path);
} else {
mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, client->id, secret, reply_data, reply_len);
if (reply) {
if (client->out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, client->out_path, client->out_path_len);
} else {
sendFlood(reply);
}
}
}
} else {
MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
}
} else if (type == PAYLOAD_TYPE_TXT_MSG && len > 5 && client->is_admin) { // a CLI command
uint32_t sender_timestamp;
memcpy(&sender_timestamp, data, 4); // timestamp (by sender's RTC clock - which could be wrong)
uint flags = (data[4] >> 2); // message attempt number, and other flags
if (!(flags == TXT_TYPE_PLAIN || flags == TXT_TYPE_CLI_DATA)) {
MESH_DEBUG_PRINTLN("onPeerDataRecv: unsupported text type received: flags=%02x", (uint32_t)flags);
} else if (sender_timestamp >= client->last_timestamp) { // prevent replay attacks
bool is_retry = (sender_timestamp == client->last_timestamp);
client->last_timestamp = sender_timestamp;
client->last_activity = getRTCClock()->getCurrentTime();
// len can be > original length, but 'text' will be padded with zeroes
data[len] = 0; // need to make a C string again, with null terminator
if (flags == TXT_TYPE_PLAIN) { // for legacy CLI, send Acks
uint32_t ack_hash; // calc truncated hash of the message timestamp + text + sender pub_key, to prove to sender that we got it
mesh::Utils::sha256((uint8_t *) &ack_hash, 4, data, 5 + strlen((char *)&data[5]), client->id.pub_key, PUB_KEY_SIZE);
mesh::Packet* ack = createAck(ack_hash);
if (ack) {
if (client->out_path_len < 0) {
sendFlood(ack);
} else {
sendDirect(ack, client->out_path, client->out_path_len);
}
}
}
uint8_t temp[166];
if (is_retry) {
temp[0] = 0;
} else {
_cli.handleCommand(sender_timestamp, (const char *) &data[5], (char *) &temp[5]);
}
int text_len = strlen((char *) &temp[5]);
if (text_len > 0) {
uint32_t timestamp = getRTCClock()->getCurrentTimeUnique();
if (timestamp == sender_timestamp) {
// WORKAROUND: the two timestamps need to be different, in the CLI view
timestamp++;
}
memcpy(temp, &timestamp, 4); // mostly an extra blob to help make packet_hash unique
temp[4] = (TXT_TYPE_CLI_DATA << 2); // NOTE: legacy was: TXT_TYPE_PLAIN
auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, secret, temp, 5 + text_len);
if (reply) {
if (client->out_path_len < 0) {
sendFlood(reply, CLI_REPLY_DELAY_MILLIS);
} else {
sendDirect(reply, client->out_path, client->out_path_len, CLI_REPLY_DELAY_MILLIS);
}
}
}
} else {
MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
}
}
}
bool onPeerPathRecv(mesh::Packet* packet, int sender_idx, const uint8_t* secret, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) override {
// TODO: prevent replay attacks
int i = matching_peer_indexes[sender_idx];
if (i >= 0 && i < MAX_CLIENTS) { // get from our known_clients table (sender SHOULD already be known in this context)
MESH_DEBUG_PRINTLN("PATH to client, path_len=%d", (uint32_t) path_len);
auto client = &known_clients[i];
memcpy(client->out_path, path, client->out_path_len = path_len); // store a copy of path, for sendDirect()
} else {
MESH_DEBUG_PRINTLN("onPeerPathRecv: invalid peer idx: %d", i);
}
// NOTE: no reciprocal path send!!
return false;
}
public:
MyMesh(RADIO_CLASS& phy, mesh::MainBoard& board, RadioLibWrapper& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, SimpleMeshTables& tables)
: mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables),
_phy(&phy), _board(&board), _cli(board, this, &_prefs, this)
{
my_radio = &radio;
memset(known_clients, 0, sizeof(known_clients));
next_local_advert = 0;
_logging = false;
// defaults
memset(&_prefs, 0, sizeof(_prefs));
_prefs.airtime_factor = 1.0; // one half
_prefs.rx_delay_base = 0.0f; // turn off by default, was 10.0;
_prefs.tx_delay_factor = 0.5f; // was 0.25f
StrHelper::strncpy(_prefs.node_name, ADVERT_NAME, sizeof(_prefs.node_name));
_prefs.node_lat = ADVERT_LAT;
_prefs.node_lon = ADVERT_LON;
StrHelper::strncpy(_prefs.password, ADMIN_PASSWORD, sizeof(_prefs.password));
_prefs.freq = LORA_FREQ;
_prefs.sf = LORA_SF;
_prefs.bw = LORA_BW;
_prefs.cr = LORA_CR;
_prefs.tx_power_dbm = LORA_TX_POWER;
_prefs.advert_interval = 1; // default to 2 minutes for NEW installs
}
CommonCLI* getCLI() { return &_cli; }
void begin(FILESYSTEM* fs) {
mesh::Mesh::begin();
_fs = fs;
// load persisted prefs
_cli.loadPrefs(_fs);
_phy->setFrequency(_prefs.freq);
_phy->setSpreadingFactor(_prefs.sf);
_phy->setBandwidth(_prefs.bw);
_phy->setCodingRate(_prefs.cr);
_phy->setOutputPower(_prefs.tx_power_dbm);
updateAdvertTimer();
}
const char* getFirmwareVer() override { return FIRMWARE_VERSION; }
const char* getBuildDate() override { return FIRMWARE_BUILD_DATE; }
const char* getNodeName() { return _prefs.node_name; }
void savePrefs() override {
_cli.savePrefs(_fs);
}
bool formatFileSystem() override {
#if defined(NRF52_PLATFORM)
return InternalFS.format();
#elif defined(ESP32)
return SPIFFS.format();
#else
#error "need to implement file system erase"
return false;
#endif
}
void sendSelfAdvertisement(int delay_millis) override {
mesh::Packet* pkt = createSelfAdvert();
if (pkt) {
sendFlood(pkt, delay_millis);
} else {
MESH_DEBUG_PRINTLN("ERROR: unable to create advertisement packet!");
}
}
void updateAdvertTimer() override {
if (_prefs.advert_interval > 0) { // schedule local advert timer
next_local_advert = futureMillis((uint32_t)_prefs.advert_interval * 2 * 60 * 1000);
} else {
next_local_advert = 0; // stop the timer
}
}
void setLoggingOn(bool enable) override { _logging = enable; }
void eraseLogFile() override {
_fs->remove(PACKET_LOG_FILE);
}
void dumpLogFile() override {
File f = _fs->open(PACKET_LOG_FILE);
if (f) {
while (f.available()) {
int c = f.read();
if (c < 0) break;
Serial.print((char)c);
}
f.close();
}
}
void setTxPower(uint8_t power_dbm) override {
_phy->setOutputPower(power_dbm);
}
void loop() {
mesh::Mesh::loop();
if (next_local_advert && millisHasNowPassed(next_local_advert)) {
mesh::Packet* pkt = createSelfAdvert();
if (pkt) {
sendZeroHop(pkt);
}
updateAdvertTimer(); // schedule next local advert
}
#ifdef DISPLAY_CLASS
ui_task.loop();
#endif
}
};
#if defined(NRF52_PLATFORM)
RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
#elif defined(LILYGO_TLORA)
SPIClass spi;
RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_0, P_LORA_RESET, P_LORA_DIO_1, spi);
#elif defined(P_LORA_SCLK)
SPIClass spi;
RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, spi);
#else
RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY);
#endif
StdRNG fast_rng;
SimpleMeshTables tables;
#ifdef ESP32
ESP32RTCClock fallback_clock;
#else
VolatileRTCClock fallback_clock;
#endif
AutoDiscoverRTCClock rtc_clock(fallback_clock);
MyMesh the_mesh(radio, board, *new WRAPPER_CLASS(radio, board), *new ArduinoMillis(), fast_rng, rtc_clock, tables);
void halt() {
while (1) ;
}
static char command[80];
void setup() {
Serial.begin(115200);
delay(1000);
board.begin();
#ifdef ESP32
fallback_clock.begin();
#endif
rtc_clock.begin(Wire);
#ifdef SX126X_DIO3_TCXO_VOLTAGE
float tcxo = SX126X_DIO3_TCXO_VOLTAGE;
#else
float tcxo = 1.6f;
#endif
#if defined(NRF52_PLATFORM)
SPI.setPins(P_LORA_MISO, P_LORA_SCLK, P_LORA_MOSI);
SPI.begin();
#elif defined(P_LORA_SCLK)
spi.begin(P_LORA_SCLK, P_LORA_MISO, P_LORA_MOSI);
#endif
int status = radio.begin(LORA_FREQ, LORA_BW, LORA_SF, LORA_CR, RADIOLIB_SX126X_SYNC_WORD_PRIVATE, LORA_TX_POWER, 8, tcxo);
if (status != RADIOLIB_ERR_NONE) {
delay(5000);
Serial.print("ERROR: radio init failed: ");
Serial.println(status);
halt();
}
radio.setCRC(0);
#ifdef SX126X_CURRENT_LIMIT
radio.setCurrentLimit(SX126X_CURRENT_LIMIT);
#endif
#ifdef SX126X_DIO2_AS_RF_SWITCH
radio.setDio2AsRfSwitch(SX126X_DIO2_AS_RF_SWITCH);
#endif
fast_rng.begin(radio.random(0x7FFFFFFF));
FILESYSTEM* fs;
#if defined(NRF52_PLATFORM)
InternalFS.begin();
fs = &InternalFS;
IdentityStore store(InternalFS, "");
#elif defined(ESP32)
SPIFFS.begin(true);
fs = &SPIFFS;
IdentityStore store(SPIFFS, "/identity");
#else
#error "need to define filesystem"
#endif
if (!store.load("_main", the_mesh.self_id)) {
MESH_DEBUG_PRINTLN("Generating new keypair");
RadioNoiseListener rng(radio);
the_mesh.self_id = mesh::LocalIdentity(&rng); // create new random identity
store.save("_main", the_mesh.self_id);
}
Serial.print("Repeater ID: ");
mesh::Utils::printHex(Serial, the_mesh.self_id.pub_key, PUB_KEY_SIZE); Serial.println();
command[0] = 0;
the_mesh.begin(fs);
#ifdef DISPLAY_CLASS
display.begin();
ui_task.begin(the_mesh.getNodeName(), FIRMWARE_BUILD_DATE);
#endif
// send out initial Advertisement to the mesh
the_mesh.sendSelfAdvertisement(2000);
}
void loop() {
int len = strlen(command);
while (Serial.available() && len < sizeof(command)-1) {
char c = Serial.read();
if (c != '\n') {
command[len++] = c;
command[len] = 0;
}
Serial.print(c);
}
if (len == sizeof(command)-1) { // command buffer full
command[sizeof(command)-1] = '\r';
}
if (len > 0 && command[len - 1] == '\r') { // received complete line
command[len - 1] = 0; // replace newline with C string null terminator
char reply[160];
the_mesh.getCLI()->handleCommand(0, command, reply); // NOTE: there is no sender_timestamp via serial!
if (reply[0]) {
Serial.print(" -> "); Serial.println(reply);
}
command[0] = 0; // reset command buffer
}
the_mesh.loop();
}
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