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- MeshCore-based Simple Sensor firmware - Heltec T114 without display - BME280 sensor support (temp/humidity/pressure) - Radio: 868.856018 MHz, SF7, BW62.5 kHz, CR4/7 - 2-byte path hash - PlatformIO project
45 lines
984 B
C++
45 lines
984 B
C++
#include <Arduino.h>
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#include "target.h"
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#include <helpers/ArduinoHelpers.h>
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ESP32Board board;
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ESPNOWRadio radio_driver;
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ESP32RTCClock rtc_clock;
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SensorManager sensors;
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bool radio_init() {
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rtc_clock.begin();
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radio_driver.init();
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return true; // success
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}
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uint32_t radio_get_rng_seed() {
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return millis() + radio_driver.intID(); // TODO: where to get some entropy?
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}
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void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr) {
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// no-op
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}
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void radio_set_tx_power(int8_t dbm) {
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radio_driver.setTxPower(dbm);
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}
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// NOTE: as we are using the WiFi radio, the ESP_IDF will have enabled hardware RNG:
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// https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/system/random.html
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class ESP_RNG : public mesh::RNG {
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public:
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void random(uint8_t* dest, size_t sz) override {
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esp_fill_random(dest, sz);
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}
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};
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mesh::LocalIdentity radio_new_identity() {
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ESP_RNG rng;
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return mesh::LocalIdentity(&rng); // create new random identity
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}
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