diff --git a/.github/workflows/github-pages.yml b/.github/workflows/github-pages.yml index d50a044c5b..5fd2734bfd 100644 --- a/.github/workflows/github-pages.yml +++ b/.github/workflows/github-pages.yml @@ -31,6 +31,6 @@ jobs: uses: peaceiris/actions-gh-pages@v3 with: github_token: ${{ secrets.GITHUB_TOKEN }} - cname: docs.meshcore.nz + cname: docs.meshcore.io publish_dir: ./site publish_branch: 'gh-pages' diff --git a/platformio.ini b/platformio.ini index ba601c26cd..3ce432d89e 100644 --- a/platformio.ini +++ b/platformio.ini @@ -134,6 +134,7 @@ build_flags = -D ENV_INCLUDE_VL53L0X=1 -D ENV_INCLUDE_BME680=1 -D ENV_INCLUDE_BMP085=1 + -D ENV_INCLUDE_RAK12035=1 lib_deps = adafruit/Adafruit INA3221 Library @ ^1.0.1 adafruit/Adafruit INA219 @ ^1.2.3 diff --git a/src/helpers/sensors/EnvironmentSensorManager.cpp b/src/helpers/sensors/EnvironmentSensorManager.cpp index 07807011db..17f862c1a6 100644 --- a/src/helpers/sensors/EnvironmentSensorManager.cpp +++ b/src/helpers/sensors/EnvironmentSensorManager.cpp @@ -101,6 +101,12 @@ static Adafruit_MLX90614 MLX90614; static Adafruit_VL53L0X VL53L0X; #endif +#if ENV_INCLUDE_RAK12035 +#define TELEM_RAK12035_ADDRESS 0x20 // RAK12035 Soil Moisture sensor I2C address +#include "RAK12035_SoilMoisture.h" +static RAK12035_SoilMoisture RAK12035; +#endif + #if ENV_INCLUDE_GPS && defined(RAK_BOARD) && !defined(RAK_WISMESH_TAG) #define RAK_WISBLOCK_GPS #endif @@ -331,6 +337,17 @@ bool EnvironmentSensorManager::begin() { } #endif + #if ENV_INCLUDE_RAK12035 + RAK12035.setup(*TELEM_WIRE); + if (RAK12035.begin(TELEM_RAK12035_ADDRESS)) { + MESH_DEBUG_PRINTLN("Found sensor RAK12035 at address: %02X", TELEM_RAK12035_ADDRESS); + RAK12035_initialized = true; + } else { + RAK12035_initialized = false; + MESH_DEBUG_PRINTLN("RAK12035 was not found at I2C address %02X", TELEM_RAK12035_ADDRESS); + } + #endif + return true; } @@ -483,8 +500,36 @@ bool EnvironmentSensorManager::querySensors(uint8_t requester_permissions, Cayen } #endif - } + #if ENV_INCLUDE_RAK12035 + if (RAK12035_initialized) { + + // RAK12035 Telemetry is Channel 2 + telemetry.addTemperature(2, RAK12035.get_sensor_temperature()); + telemetry.addPercentage(2, RAK12035.get_sensor_moisture()); + // RAK12035 CALIBRATION Telemetry is Channel 3, if enabled + + #ifdef ENABLE_RAK12035_CALIBRATION + // Calibration Data Screen is Channel 3 + float cap = RAK12035.get_sensor_capacitance(); + float _wet = RAK12035.get_humidity_full(); + float _dry = RAK12035.get_humidity_zero(); + + telemetry.addFrequency(3, cap); + telemetry.addTemperature(3, _wet); + telemetry.addPower(3, _dry); + + if(cap > _dry){ + RAK12035.set_humidity_zero(cap); + } + + if(cap < _wet){ + RAK12035.set_humidity_full(cap); + } + #endif + } + #endif + } return true; } diff --git a/src/helpers/sensors/EnvironmentSensorManager.h b/src/helpers/sensors/EnvironmentSensorManager.h index f176a33f5f..32413ebc03 100644 --- a/src/helpers/sensors/EnvironmentSensorManager.h +++ b/src/helpers/sensors/EnvironmentSensorManager.h @@ -22,6 +22,7 @@ class EnvironmentSensorManager : public SensorManager { bool SHT4X_initialized = false; bool BME680_initialized = false; bool BMP085_initialized = false; + bool RAK12035_initialized = false; bool gps_detected = false; bool gps_active = false; diff --git a/src/helpers/sensors/RAK12035_SoilMoisture.cpp b/src/helpers/sensors/RAK12035_SoilMoisture.cpp new file mode 100644 index 0000000000..b979345047 --- /dev/null +++ b/src/helpers/sensors/RAK12035_SoilMoisture.cpp @@ -0,0 +1,528 @@ +/*----------------------------------------------------------------------* + * RAK12035_SoilMoistureSensor.cpp - Arduino library for the Sensor * + * version of I2C Soil Moisture Sensor version from Chrirp * + * (https://github.com/Miceuz/i2c-moisture-sensor). * + * * + * Ingo Fischer 11Nov2015 * + * https://github.com/Apollon77/I2CSoilMoistureSensor * + * * + * Ken Privitt 8Feb2026 * + * Adapted for MeshCore Firmware Stack * + * * + * MIT license * + * * + * This file contains a collection of routines to access the * + * RAK12035 Soil Moisture Sensor via I2C. The sensor provides * + * Soil Temperature and capacitance-based Soil Moisture Readings. * + * * + *----------------------------------------------------------------------*/ + +#include "RAK12035_SoilMoisture.h" + +#include + +#if MESH_DEBUG && ARDUINO + #include + #define MESH_DEBUG_PRINT(F, ...) Serial.printf("DEBUG: " F, ##__VA_ARGS__) + #define MESH_DEBUG_PRINTLN(F, ...) Serial.printf("DEBUG: " F "\n", ##__VA_ARGS__) +#else + #define MESH_DEBUG_PRINT(...) {} + #define MESH_DEBUG_PRINTLN(...) {} +#endif + +/*----------------------------------------------------------------------* + * Constructor. * + *----------------------------------------------------------------------*/ + // RAK12035_SoilMoisture(uint8_t addr) + // + // Accepts the I2C Address to look for the RAK12035 + // Initializes the I2C to null (will be setup later in Wire.Begin() + // + // No hardware is touched in the constructor. + // I2C communication is deferred until begin() is called. + //------------------------------------------------------------------------------ + +RAK12035_SoilMoisture::RAK12035_SoilMoisture(uint8_t addr) +{ + _addr = addr; // Save the sensor's I2C address + _i2c = nullptr; // Bus not assigned yet; must be set in begin() +} + +//------------------------------------------------------------------------------ +// setup() +//------------------------------------------------------------------------------ +// setup(TwoWire &i2c) +// +// Assigns the I2C bus that this driver instance will use. This allows the +// application to choose between Wire, Wire1, or any other TwoWire instance +// supported by the platform. +// +// No I2C communication occurs here; setup() simply stores the pointer so that +// begin() and all register‑level operations know which bus to use. +//------------------------------------------------------------------------------ +void RAK12035_SoilMoisture::setup(TwoWire &i2c) + +{ + _i2c = &i2c; // assigns the bus pointer + _i2c->begin(); // Initialize the bus to Wire or Wire1 +} + +//------------------------------------------------------------------------------ +// RAK12035 Soil Moisture begin() +//------------------------------------------------------------------------------ +// +// Performs initialization of the RAK12035 soil‑moisture sensor. This +// routine assumes that the application has already selected the I2C bus via +// setup() and that the bus has been initialized externally (Wire.begin()). +// It uses the passed in I2C Address (default 0x20) +// +// *** This code does not supprt three sensors *** +// The RAK12023 has three connectors, but the plugged in sensors must +// all have different I2C addresses. (This code has a function to set the adress) +// +// DEBUG STATEMENTS: Can be enabled by uncommenting or adding: +// File: varients/rak4631 platformio.ini +// Section example: [env:RAK_4631_companion_radio_ble] +// Enable Debug statements: -D MESH_DEBUG=1 +// +//------------------------------------------------------------------------------ +bool RAK12035_SoilMoisture::begin(uint8_t addr) +{ +// MESH_DEBUG_PRINTLN("begin() - Start of RAK12035 initialization"); +// MESH_DEBUG_PRINTLN("begin() - RAK12035 passed in Address %02X", addr); + +// 1. Ensure setup() was called + if (_i2c == nullptr) { + MESH_DEBUG_PRINTLN("RAK12035 ERROR: I2C bus not set!"); + return false; +} + + uint16_t _dry_cal = 200; + uint16_t _wet_cal = 600; + uint8_t _version = 0; + uint8_t _addr; // The I2C address to be used (passed in parameter) + +/*------------------------------------------------------------------------------------------ + * Set Calibration values - This is done with custom a firmware version + * + * USE the Build Flag: -D ENABLE_RAK12035_CALIBRATION = 1 + * + * Or change the value to 1 in the RAK12035_SoilMoisture.h file + * + * Calibration Procedure: + * 1) Flash the the Calibration version of the firmware. + * 2) Leave the sensor dry, power up the device. + * 3) After detecting the RAK12035 this firmware will display calibration data on Channel 3 + * + * Frequency = Current Capacitance Value + * Temperature = Current Wet calibration value + * Power = Current Dry calibration value + * + * 4) Click refresh several times. This will take a capacitance reading and if it is + * greater than the current Dry value it will store it in the sensor + * The value will bounce a little as you click refresh, but it eventually settles down (a few clicks) + * the stored value will stabalize at it's Maximum value. + * + * 5) Put the sensor in water. + * + * 6) Click refresh several times. This will take a capacitance reading and if it is + * less than the current Wet value it will store it in the sensor + * The value will bounce a little as you click refresh, but it eventually settles down (a few clicks) + * the stored value will stabalize at it's Minimum value. + * + * 7) The Sensor is now calibrated, turn off the device. + * + * 8) Reflash the device with the non-Calibration Firmware, Data will be shown on Channel 2 + * + *------------------------------------------------------------------------------------------ +*/ + +#if ENABLE_RAK12035_CALIBRATION + uint16_t _wet = 2000; // A high value the should be our of the normal Wet range + set_humidity_full(_wet); + + uint16_t _dry = 50; // A low value the should be our of the normal Dry range + set_humidity_zero(_dry); +#endif + + /*------------------------------------------------------------------------------------------ + * + * Check if a sensor is present and return true if found, false if not present + * + *------------------------------------------------------------------------------------------ + */ + + if (query_sensor()) { + MESH_DEBUG_PRINTLN("begin() - Sensor responded with valid version"); + return true; + } + else { + MESH_DEBUG_PRINTLN("begin() - Sensor version FAIL"); + return false; + } +} + +/*------------------------------------------------------------------------------------------* + * + * Below are all the routines to execute the various I2C commands supported + * by the RAK12035 sensor + * + *------------------------------------------------------------------------------------------*/ + +uint16_t RAK12035_SoilMoisture::get_sensor_capacitance() //Command 01 - (r) 2 byte +{ + uint8_t buf[2] = {0}; + if (!read_rak12035(SOILMOISTURESENSOR_GET_CAPACITANCE, buf, 2)) { + MESH_DEBUG_PRINTLN("Function 1: get_capacitance() FAIL: Bad data returned = %02X %02X", buf[0], buf[1]); + return (buf[0] << 8) | buf[1]; // return raw for debugging + } + uint16_t cap = (buf[0] << 8) | buf[1]; + MESH_DEBUG_PRINTLN("Function 1: get_capacitance() SUCCESS: Capacitance = %d", cap); + return cap; +} + + +uint8_t RAK12035_SoilMoisture::get_I2C_address() //Command 02 - (r) 1 byte +{ + uint8_t addr = 0; + if (!read_rak12035(SOILMOISTURESENSOR_GET_I2C_ADDR, &addr, 1)) { + MESH_DEBUG_PRINTLN("Function 2: get_I2C_address() FAIL: Bad data returned = %02X", addr); + return addr; // return raw for debugging + } + MESH_DEBUG_PRINTLN("Function 2: get_I2C_address() SUCCESS: I2C Address = %02X", addr); + return addr; +} + + +bool RAK12035_SoilMoisture::set_sensor_addr(uint8_t addr) //Command 03 - (w) 1 byte +{ + if (!write_rak12035(SOILMOISTURESENSOR_SET_I2C_ADDR, &addr, 1)) { + MESH_DEBUG_PRINTLN("Function 3: set_I2C_address() FAIL: Could not set new address %02X", addr); + return false; + } + MESH_DEBUG_PRINTLN("Function 3: set_I2C_address() SUCCESS: New address = %02X", addr); + return true; +} + + +uint8_t RAK12035_SoilMoisture::get_sensor_version() // Command 04 - 1 byte +{ + uint8_t v = 0; + + read_rak12035(SOILMOISTURESENSOR_GET_VERSION, &v, 1); + if (!read_rak12035(SOILMOISTURESENSOR_GET_VERSION, &v, 1)) { + MESH_DEBUG_PRINTLN("Function 4: get_sensor_version() FAIL: Bad data returned = %02X", v); + return v; + } + MESH_DEBUG_PRINTLN("Function 4: get_sensor_version() SUCCESS: Version = %02X", v); + return v; +} + + +float RAK12035_SoilMoisture::get_sensor_temperature() //Command 05 - (r) 2 bytes +{ + uint8_t buf[2] = {0}; + if (!read_rak12035(SOILMOISTURESENSOR_GET_TEMPERATURE, buf, 2)) { + MESH_DEBUG_PRINTLN("Function 5: get_temperature() FAIL: Bad data returned = %02X %02X", buf[0], buf[1]); + return (buf[0] << 8) | buf[1]; // raw data returned for debugging 0XFFFF is error + } + // Sensor returns a 16-bit signed integer (°C * 10) + int16_t raw = (buf[0] << 8) | buf[1]; + float tempC = raw / 10.0f; + MESH_DEBUG_PRINTLN("Function 5: get_temperature() SUCCESS: Raw=%04X Temp=%.1f C", raw, tempC); + return tempC; +} + + +bool RAK12035_SoilMoisture::sensor_sleep() //Command 06 - (w) 1 byte +{ + uint8_t tmp = 0; + if (!write_rak12035(SOILMOISTURESENSOR_SET_SLEEP, &tmp, 1)) { + MESH_DEBUG_PRINTLN("Function 6: sensor_sleep() FAIL: Could not send sleep command"); + return false; + } + MESH_DEBUG_PRINTLN("Function 6: sensor_sleep() SUCCESS: Sensor acknowledged sleep command"); + // Optional: turn off sensor power AFTER successful sleep command + digitalWrite(WB_IO2, LOW); + return true; +} + + +bool RAK12035_SoilMoisture::set_humidity_full(uint16_t full) //Command 07 - (w) 2 bytes +{ + uint8_t buf[2]; + buf[0] = (full >> 8) & 0xFF; // High byte + buf[1] = full & 0xFF; // Low byte + + if (!write_rak12035(SOILMOISTURESENSOR_SET_WET_CAL, buf, 2)) { + MESH_DEBUG_PRINTLN("Function 7: set_humidity_full() FAIL: Could not set wet calibration value" + ); + return false; + } + MESH_DEBUG_PRINTLN("Function 7: set_humidity_full() SUCCESS: New Full = %04X", full); + return true; +} + + +bool RAK12035_SoilMoisture::set_humidity_zero(uint16_t zero) //Command 08 - (w) 2 bytes +{ + uint8_t buf[2]; + buf[0] = (zero >> 8) & 0xFF; // High byte + buf[1] = zero & 0xFF; // Low byte + + if (!write_rak12035(SOILMOISTURESENSOR_SET_DRY_CAL, buf, 2)) { + MESH_DEBUG_PRINTLN("Function 8: set_humidity_zero() FAIL: Could not set dry calibration value"); + return false; + } + MESH_DEBUG_PRINTLN("Function 8: set_humidity_zero() SUCCESS: New Zero = %04X", zero); + return true; +} + + +uint8_t RAK12035_SoilMoisture::get_sensor_moisture() //Command 09 - (r) 1 byte +{ +// Load calibration values from sensor + _wet_cal = get_humidity_full(); + _dry_cal = get_humidity_zero(); + + MESH_DEBUG_PRINTLN("Function 9: get_moisture() - Read from sensor or calculate from capacitance"); + + // Read sensor version + uint8_t v = get_sensor_version(); + + // If version > 2, read moisture directly from the sensor + if (v > 2) { + MESH_DEBUG_PRINTLN("Version > 02 - Reading moisture directly from sensor"); + uint8_t moisture = get_sensor_humid(); + MESH_DEBUG_PRINTLN("get_moisture() Direct Read = %d%%", moisture); + return moisture; + } + // Otherwise calculate moisture from capacitance + MESH_DEBUG_PRINTLN("Calculating moisture from capacitance"); + + uint16_t cap = get_sensor_capacitance(); + + // Clamp capacitance between calibration points + if (_dry_cal < _wet_cal) { + if (cap <= _dry_cal) cap = _dry_cal; + if (cap >= _wet_cal) cap = _wet_cal; + + float pct = (_wet_cal - cap) * 100.0f / (_wet_cal - _dry_cal); + if (pct > 100.0f) pct = 100.0f; + + MESH_DEBUG_PRINTLN("get_moisture Case 1() Calculated = %d%%", (uint8_t)pct); + return (uint8_t)pct; + } else { + if (cap >= _dry_cal) cap = _dry_cal; + if (cap <= _wet_cal) cap = _wet_cal; + + float pct = (_dry_cal - cap) * 100.0f / (_dry_cal - _wet_cal); + if (pct > 100.0f) pct = 100.0f; + + MESH_DEBUG_PRINTLN("get_moisture Case 2() Calculated = %d%%", (uint8_t)pct); + return (uint8_t)pct; + } +} + + +uint8_t RAK12035_SoilMoisture::get_sensor_humid() //Command 09 - (r) 1 byte +{ + uint8_t moisture = 0; + + if (!read_rak12035(SOILMOISTURESENSOR_GET_MOISTURE, &moisture, 1)) { + MESH_DEBUG_PRINTLN("Function 9: get_sensor_humid() FAIL: Bad data returned = %02X", moisture); + return moisture; // raw fallback + } + MESH_DEBUG_PRINTLN("Function 9: get_sensor_humid() SUCCESS: Moisture = %d%%",moisture); + return moisture; +} + + +uint16_t RAK12035_SoilMoisture::get_humidity_full() //Command 0A - (r) 2 bytes +{ + uint8_t buf[2] = {0}; + + if (!read_rak12035(SOILMOISTURESENSOR_GET_WET_CAL, buf, 2)) { + MESH_DEBUG_PRINTLN("Function A: get_humidity_full() FAIL: Bad data returned = %02X%02X", buf[0], buf[1]); + return 0xFFFF; // error indicator + } + + uint16_t full = (buf[0] << 8) | buf[1]; + + MESH_DEBUG_PRINTLN("Function A: get_humidity_full() SUCCESS: Full = %04X = %d", full, full); + return full; +} + + +uint16_t RAK12035_SoilMoisture::get_humidity_zero() //Command 0B - 2 bytes +{ + uint8_t buf[2] = {0}; + + if (!read_rak12035(SOILMOISTURESENSOR_GET_DRY_CAL, buf, 2)) { + MESH_DEBUG_PRINTLN("Function B: get_humidity_zero() FAIL: Bad data returned = %02X%02X", buf[0], buf[1]); + return 0xFFFF; // error indicator + } + + uint16_t zero = (buf[0] << 8) | buf[1]; + + MESH_DEBUG_PRINTLN("Function B: get_humidity_zero() SUCCESS: Zero = %04X = %d", zero, zero); + return zero; +} + + +/*------------------------------------------------------------------------------------------* + * getEvent() - High-level function to read both moisture and temperature in one call. * + *------------------------------------------------------------------------------------------* + * This function reads the moisture percentage and temperature from the sensor and returns * + * them via output parameters. This may be used for the telemerty delivery in the MeshCore * + * firmware, with a single function to get all sensor data. * + * * + * The function returns true if both readings were successfully obtained, or false if any * + * error occurred during I2C communication. * + *------------------------------------------------------------------------------------------*/ +bool RAK12035_SoilMoisture::getEvent(uint8_t *humidity, uint16_t *temp) +{ + // Read moisture (0-100%) + uint8_t moist = get_sensor_moisture(); + if (moist == 0xFF) //error indicator + return false; + MESH_DEBUG_PRINTLN("getEvent() - Humidity = %d", moist); + *humidity = moist; + + //Read temperature (degrees C) + uint16_t t = get_sensor_temperature(); + if (t == 0XFFFF) // error indicator + return false; + + *temp = t; + MESH_DEBUG_PRINTLN("getEvent() - Temperature = %d", t); + return true; +} + +bool RAK12035_SoilMoisture::sensor_on() +{ + uint8_t data; + pinMode(WB_IO2, OUTPUT); + digitalWrite(WB_IO2, HIGH); //Turn on Sensor Power + + pinMode(WB_IO4, OUTPUT); //Set IO4 Pin to Output (connected to *reset on sensor) + digitalWrite(WB_IO4, LOW); //*reset - Reset the Sensor + delay(1); //Wait for the minimum *reset, 1mS is longer than required minimum + digitalWrite(WB_IO4, HIGH); //Deassert Reset + + delay(10); // Wait for the sensor code to complete initialization + + uint8_t v = 0; + time_t timeout = millis(); + while ((!query_sensor())) //Wait for sensor to respond to I2C commands, + { //indicating it is ready + if ((millis() - timeout) > 50){ //0.5 second timeout for sensor to respond + MESH_DEBUG_PRINTLN("reset() - Timeout, no response from I2C commands"); + return false; + } + else { + delay(10); //delay 10mS + } + } +} + +bool RAK12035_SoilMoisture::reset() +{ +// Atmel 8495 Microcoltroller: Reset input. A low level on this pin for longer than +// the minimum pulse length will generate a reset, even if the clock is not +// running and provided the reset pin has not been disabled. The minimum pulse length is +// given in Table 25-5 on page 240. 2000ns = .002mS +// Shorter pulses are not guaranteed to generate a reset. + +// The Sensor reset was remomved and is not needed, power is never removed. +// But might be needed if power is ever switched off. Here is tested code. +/* + pinMode(WB_IO4, OUTPUT); //Set IO4 Pin to Output (connected to *reset on sensor) + MESH_DEBUG_PRINTLN("Assert *reset (Low) for 1 mS"); + digitalWrite(WB_IO4, LOW); //Reset the Sensor + delay(1); //Wait for the minimum *reset, 1mS is longer than required minimum + MESH_DEBUG_PRINTLN("reset() - De-assert *reset (High)"); + digitalWrite(WB_IO4, HIGH); // Deassert Reset +*/ + + MESH_DEBUG_PRINTLN("reset() - Begin poling in 100mS intervals for a non-zero version"); + uint32_t start_time = millis(); + MESH_DEBUG_PRINTLN("reset() - Timeout, Start Time: %d milliseconds", start_time); + + const uint32_t timeout_ms = 500; // Wait for 0.5 seconds + uint32_t start = millis(); + + while (true) { + if (query_sensor()) { + MESH_DEBUG_PRINTLN("reset() - First Pass, Sensor responded with valid version"); + uint32_t stop_time = millis(); + MESH_DEBUG_PRINTLN("reset() - Timeout, Stop Time: %d mS", stop_time); + MESH_DEBUG_PRINTLN("reset() - Timeout, Duration: %d mS", (stop_time - start_time)); + + return true; + } + if (millis() - start > timeout_ms) { + MESH_DEBUG_PRINTLN("reset() - Timeout waiting for valid sensor version"); + uint32_t stop_time = millis(); + MESH_DEBUG_PRINTLN("reset() - Timeout, Stop Time: %d mS", stop_time); + MESH_DEBUG_PRINTLN("reset() - Timeout, Duration: %d mS", (stop_time - start_time)); + return false; + } + delay(100); + } +} + + bool RAK12035_SoilMoisture::query_sensor() +{ + uint8_t v = 0; + v = get_sensor_version(); + + // Treat 0x00 and 0xFF as invalid / bootloader / garbage + if (v == 0x00 || v == 0xFF) { + MESH_DEBUG_PRINTLN("query_sensor() FAIL: Version value invalid: %02X", v); + return false; + } + MESH_DEBUG_PRINTLN("query_sensor() SUCCESS: Sensor Present, Version = %02X", v); + return true; +} + + +/*------------------------------------------------------------------------------------------* + * Below are the low-level I2C read and write functions. These handle the actual + * communication with the sensor registers. The higher-level functions call these + * to perform specific tasks. + *------------------------------------------------------------------------------------------*/ + +bool RAK12035_SoilMoisture::read_rak12035(uint8_t cmd, uint8_t *data, uint8_t length) +{ + _i2c->beginTransmission(_addr); + _i2c->write(cmd); // <-- COMMAND, not register index + if (_i2c->endTransmission() != 0) + return false; + + delay(20); + + int received = _i2c->requestFrom(_addr, length); + if (received != length) + return false; + + for (int i = 0; i < length; i++) + data[i] = _i2c->read(); + + return true; +} + +bool RAK12035_SoilMoisture::write_rak12035(uint8_t cmd, uint8_t *data, uint8_t length) +{ + _i2c->beginTransmission(_addr); + _i2c->write(cmd); // <-- COMMAND, not register index + + for (uint8_t i = 0; i < length; i++) + _i2c->write(data[i]); + + if (_i2c->endTransmission() != 0) + return false; + + delay(20); + return true; +} diff --git a/src/helpers/sensors/RAK12035_SoilMoisture.h b/src/helpers/sensors/RAK12035_SoilMoisture.h new file mode 100644 index 0000000000..f5dc1ce599 --- /dev/null +++ b/src/helpers/sensors/RAK12035_SoilMoisture.h @@ -0,0 +1,88 @@ +/** + * @file RAK12035_SoilMoisture.h + * @author Bernd Giesecke (bernd.giesecke@rakwireless.com) + * @brief Header file for Class RAK12035 + * @version 0.1 + * @date 2021-11-20 + * + * Updates for MeshCore integration + * Ken Privitt + * 2/26/2026 + * + * @copyright Copyright (c) 2021 + * + */ +#ifndef RAK12035_SOILMOISTURE_H +#define RAK12035_SOILMOISTURE_H +#endif + +#ifndef ENABLE_RAK12025_CALIBRATION +#define ENABLE_RAK12025_CALIBRATION = 0 // Used to generate Calibration Version of Firmware + +#include +#include + +#define RAK12035_I2C_ADDR_DEFAULT 0x20 +#define RAK12035_0_ADDR 0x20 +#define RAK12035_1_ADDR 0x21 +#define RAK12035_2_ADDR 0x22 + +// Command codes used by the RAK12035 firmware +#define SOILMOISTURESENSOR_GET_CAPACITANCE 0x01 // (r) 2 bytes +#define SOILMOISTURESENSOR_GET_I2C_ADDR 0x02 // (r) 1 bytes +#define SOILMOISTURESENSOR_SET_I2C_ADDR 0x03 // (w) 1 bytes +#define SOILMOISTURESENSOR_GET_VERSION 0x04 // (r) 1 bytes +#define SOILMOISTURESENSOR_GET_TEMPERATURE 0x05 // (r) 2 bytes +#define SOILMOISTURESENSOR_SET_SLEEP 0x06 // (w) 1 bytes +#define SOILMOISTURESENSOR_SET_WET_CAL 0x07 // (w) 2 bytes +#define SOILMOISTURESENSOR_SET_DRY_CAL 0x08 // (w) 2 bytes +#define SOILMOISTURESENSOR_GET_MOISTURE 0x09 // (r) 1 bytes +#define SOILMOISTURESENSOR_GET_WET_CAL 0x0A // (r) 2 bytes +#define SOILMOISTURESENSOR_GET_DRY_CAL 0x0B // (r) 2 bytes + +class RAK12035_SoilMoisture +{ +public: + RAK12035_SoilMoisture(uint8_t addr = RAK12035_I2C_ADDR_DEFAULT); + + void setup(TwoWire& i2c); + bool begin(uint8_t addr); + bool getEvent(uint8_t *humidity, uint16_t *temperature); + + uint16_t get_sensor_capacitance(); //Command 01 - (r) 2 byte + uint8_t get_I2C_address(); //Command 02 - (r) 1 byte + bool set_sensor_addr(uint8_t addr); //Command 03 - (w) 1 byte + uint8_t get_sensor_version(); //Command 04 - (r) 1 byte + float get_sensor_temperature(); //Command 05 - (r) 2 bytes + bool sensor_sleep(); //Command 06 - (w) 1 byte + bool set_humidity_full(uint16_t hundred_val); //Command 07 - (w) 2 bytes + bool set_humidity_zero(uint16_t zero_val); //Command 08 - (w) 2 bytes + uint8_t get_sensor_moisture(); //Command 09 - (r) 1 byte + uint8_t get_sensor_humid(); //Command 09 - (r) 1 byte + uint16_t get_humidity_full(); //Command 0A - (r) 2 bytes + uint16_t get_humidity_zero(); //Command 0B - (r) 2 bytes + + bool read_rak12035(uint8_t cmd, uint8_t *data, uint8_t length); + bool write_rak12035(uint8_t cmd, uint8_t *data, uint8_t length); + + bool query_sensor(); + bool sensor_on(); + bool reset(); + + uint16_t _dry_cal; + uint16_t _wet_cal; + +private: + bool read_reg(uint8_t reg, uint8_t *data, uint8_t len); + bool write_reg(uint8_t reg, uint8_t *data, uint8_t len); + + TwoWire *_i2c = &Wire; + uint8_t _addr; + + uint16_t default_dry_cal = 2000; + uint16_t default_wet_cal = 50; + uint8_t _capacitance = 0; + uint16_t _temperature = 0; + uint8_t _moisture = 0; +}; +#endif