Files
MeshCore/examples/simple_sensor/main.cpp
2025-07-09 15:50:36 +10:00

139 lines
3.7 KiB
C++

#include "SensorMesh.h"
#ifdef DISPLAY_CLASS
#include "UITask.h"
static UITask ui_task(display);
#endif
class MyMesh : public SensorMesh {
public:
MyMesh(mesh::MainBoard& board, mesh::Radio& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables)
: SensorMesh(board, radio, ms, rng, rtc, tables),
battery_data(12*24, 5*60) // 24 hours worth of battery data, every 5 minutes
{
}
protected:
/* ========================== custom logic here ========================== */
Trigger low_batt;
TimeSeriesData battery_data;
void onSensorDataRead() override {
float batt_voltage = getVoltage(TELEM_CHANNEL_SELF);
battery_data.recordData(getRTCClock(), batt_voltage); // record battery
alertIf(batt_voltage < 3.4f, low_batt, HIGH_PRI_ALERT, "Battery low!");
}
int querySeriesData(uint32_t start_secs_ago, uint32_t end_secs_ago, MinMaxAvg dest[], int max_num) override {
battery_data.calcDataMinMaxAvg(getRTCClock(), start_secs_ago, end_secs_ago, &dest[0], TELEM_CHANNEL_SELF, LPP_VOLTAGE);
return 1;
}
/* ======================================================================= */
};
StdRNG fast_rng;
SimpleMeshTables tables;
MyMesh the_mesh(board, radio_driver, *new ArduinoMillis(), fast_rng, rtc_clock, tables);
void halt() {
while (1) ;
}
static char command[120];
void setup() {
Serial.begin(115200);
delay(1000);
board.begin();
#ifdef DISPLAY_CLASS
if (display.begin()) {
display.startFrame();
display.print("Please wait...");
display.endFrame();
}
#endif
if (!radio_init()) { halt(); }
fast_rng.begin(radio_get_rng_seed());
FILESYSTEM* fs;
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
InternalFS.begin();
fs = &InternalFS;
IdentityStore store(InternalFS, "");
#elif defined(ESP32)
SPIFFS.begin(true);
fs = &SPIFFS;
IdentityStore store(SPIFFS, "/identity");
#elif defined(RP2040_PLATFORM)
LittleFS.begin();
fs = &LittleFS;
IdentityStore store(LittleFS, "/identity");
store.begin();
#else
#error "need to define filesystem"
#endif
if (!store.load("_main", the_mesh.self_id)) {
MESH_DEBUG_PRINTLN("Generating new keypair");
the_mesh.self_id = radio_new_identity(); // create new random identity
int count = 0;
while (count < 10 && (the_mesh.self_id.pub_key[0] == 0x00 || the_mesh.self_id.pub_key[0] == 0xFF)) { // reserved id hashes
the_mesh.self_id = radio_new_identity(); count++;
}
store.save("_main", the_mesh.self_id);
}
Serial.print("Sensor ID: ");
mesh::Utils::printHex(Serial, the_mesh.self_id.pub_key, PUB_KEY_SIZE); Serial.println();
command[0] = 0;
sensors.begin();
the_mesh.begin(fs);
#ifdef DISPLAY_CLASS
ui_task.begin(the_mesh.getNodePrefs(), FIRMWARE_BUILD_DATE, FIRMWARE_VERSION);
#endif
// send out initial Advertisement to the mesh
the_mesh.sendSelfAdvertisement(16000);
}
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.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();
sensors.loop();
#ifdef DISPLAY_CLASS
ui_task.loop();
#endif
}