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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
50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
#pragma once
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#include <Arduino.h>
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#include <MeshCore.h>
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// from https://github.com/RAKWireless/RAK11300-AT-Command-Firmware/blob/9c48409a43620a828d653501d536473200aa33af/RAK11300-AT-Arduino/batt.cpp#L17-L19
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#define VBAT_MV_PER_LSB (0.806F) // 3.0V ADC range and 12 - bit ADC resolution = 3300mV / 4096
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#define VBAT_DIVIDER (0.6F) // 1.5M + 1M voltage divider on VBAT = (1.5M / (1M + 1.5M))
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#define VBAT_DIVIDER_COMP (1.846F) // // Compensation factor for the VBAT divider
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#define PIN_VBAT_READ 26
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#define BATTERY_SAMPLES 8
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#define ADC_MULTIPLIER (VBAT_DIVIDER_COMP * VBAT_MV_PER_LSB)
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class RAK11310Board : public mesh::MainBoard {
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protected:
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uint8_t startup_reason;
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public:
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void begin();
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uint8_t getStartupReason() const override { return startup_reason; }
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#ifdef P_LORA_TX_LED
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void onBeforeTransmit() override { digitalWrite(P_LORA_TX_LED, HIGH); }
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void onAfterTransmit() override { digitalWrite(P_LORA_TX_LED, LOW); }
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#endif
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uint16_t getBattMilliVolts() override {
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#if defined(PIN_VBAT_READ) && defined(ADC_MULTIPLIER)
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analogReadResolution(12);
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uint32_t raw = 0;
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for (int i = 0; i < BATTERY_SAMPLES; i++) {
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raw += analogRead(PIN_VBAT_READ);
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}
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raw = raw / BATTERY_SAMPLES;
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return (ADC_MULTIPLIER * raw);
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#else
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return 0;
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#endif
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}
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const char *getManufacturerName() const override { return "RAK 11310"; }
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void reboot() override { rp2040.reboot(); }
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bool startOTAUpdate(const char *id, char reply[]) override;
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};
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