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280 lines
11 KiB
280 lines
11 KiB
// -----------------------------------------------------------------------------
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// Energy monitor sensor
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// -----------------------------------------------------------------------------
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#pragma once
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#include "Arduino.h"
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#include "BaseSensor.h"
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#include "EmonSensor.h"
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#include <ADS1115.h>
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/*
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#if I2C_USE_BRZO
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#include <brzo_i2c.h>
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#else
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#include <Wire.h>
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#endif
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#define ADS1015_CONVERSIONDELAY (1)
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#define ADS1115_CONVERSIONDELAY (8)
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#define ADS1015_BIT_SHIFT (4)
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#define ADS1115_BIT_SHIFT (0)
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#define ADS1015_REG_POINTER_MASK (0x03)
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#define ADS1015_REG_POINTER_CONVERT (0x00)
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#define ADS1015_REG_POINTER_CONFIG (0x01)
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#define ADS1015_REG_POINTER_LOWTHRESH (0x02)
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#define ADS1015_REG_POINTER_HITHRESH (0x03)
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#define ADS1015_REG_CONFIG_OS_MASK (0x8000)
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#define ADS1015_REG_CONFIG_OS_SINGLE (0x8000) // Write: Set to start a single-conversion
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#define ADS1015_REG_CONFIG_OS_BUSY (0x0000) // Read: Bit = 0 when conversion is in progress
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#define ADS1015_REG_CONFIG_OS_NOTBUSY (0x8000) // Read: Bit = 1 when device is not performing a conversion
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#define ADS1015_REG_CONFIG_MUX_MASK (0x7000)
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#define ADS1015_REG_CONFIG_MUX_DIFF_0_1 (0x0000) // Differential P = AIN0, N = AIN1 (default)
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#define ADS1015_REG_CONFIG_MUX_DIFF_0_3 (0x1000) // Differential P = AIN0, N = AIN3
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#define ADS1015_REG_CONFIG_MUX_DIFF_1_3 (0x2000) // Differential P = AIN1, N = AIN3
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#define ADS1015_REG_CONFIG_MUX_DIFF_2_3 (0x3000) // Differential P = AIN2, N = AIN3
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#define ADS1015_REG_CONFIG_MUX_SINGLE_0 (0x4000) // Single-ended AIN0
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#define ADS1015_REG_CONFIG_MUX_SINGLE_1 (0x5000) // Single-ended AIN1
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#define ADS1015_REG_CONFIG_MUX_SINGLE_2 (0x6000) // Single-ended AIN2
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#define ADS1015_REG_CONFIG_MUX_SINGLE_3 (0x7000) // Single-ended AIN3
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#define ADS1015_REG_CONFIG_PGA_MASK (0x0E00)
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#define ADS1015_REG_CONFIG_PGA_6_144V (0x0000) // +/-6.144V range = Gain 2/3
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#define ADS1015_REG_CONFIG_PGA_4_096V (0x0200) // +/-4.096V range = Gain 1
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#define ADS1015_REG_CONFIG_PGA_2_048V (0x0400) // +/-2.048V range = Gain 2 (default)
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#define ADS1015_REG_CONFIG_PGA_1_024V (0x0600) // +/-1.024V range = Gain 4
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#define ADS1015_REG_CONFIG_PGA_0_512V (0x0800) // +/-0.512V range = Gain 8
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#define ADS1015_REG_CONFIG_PGA_0_256V (0x0A00) // +/-0.256V range = Gain 16
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#define ADS1015_REG_CONFIG_MODE_MASK (0x0100)
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#define ADS1015_REG_CONFIG_MODE_CONTIN (0x0000) // Continuous conversion mode
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#define ADS1015_REG_CONFIG_MODE_SINGLE (0x0100) // Power-down single-shot mode (default)
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#define ADS1015_REG_CONFIG_DR_MASK (0x00E0)
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#define ADS1015_REG_CONFIG_DR_128SPS (0x0000) // 128 samples per second
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#define ADS1015_REG_CONFIG_DR_250SPS (0x0020) // 250 samples per second
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#define ADS1015_REG_CONFIG_DR_490SPS (0x0040) // 490 samples per second
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#define ADS1015_REG_CONFIG_DR_920SPS (0x0060) // 920 samples per second
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#define ADS1015_REG_CONFIG_DR_1600SPS (0x0080) // 1600 samples per second (default)
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#define ADS1015_REG_CONFIG_DR_2400SPS (0x00A0) // 2400 samples per second
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#define ADS1015_REG_CONFIG_DR_3300SPS (0x00C0) // 3300 samples per second
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#define ADS1015_REG_CONFIG_CMODE_MASK (0x0010)
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#define ADS1015_REG_CONFIG_CMODE_TRAD (0x0000) // Traditional comparator with hysteresis (default)
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#define ADS1015_REG_CONFIG_CMODE_WINDOW (0x0010) // Window comparator
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#define ADS1015_REG_CONFIG_CPOL_MASK (0x0008)
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#define ADS1015_REG_CONFIG_CPOL_ACTVLOW (0x0000) // ALERT/RDY pin is low when active (default)
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#define ADS1015_REG_CONFIG_CPOL_ACTVHI (0x0008) // ALERT/RDY pin is high when active
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#define ADS1015_REG_CONFIG_CLAT_MASK (0x0004) // Determines if ALERT/RDY pin latches once asserted
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#define ADS1015_REG_CONFIG_CLAT_NONLAT (0x0000) // Non-latching comparator (default)
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#define ADS1015_REG_CONFIG_CLAT_LATCH (0x0004) // Latching comparator
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#define ADS1015_REG_CONFIG_CQUE_MASK (0x0003)
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#define ADS1015_REG_CONFIG_CQUE_1CONV (0x0000) // Assert ALERT/RDY after one conversions
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#define ADS1015_REG_CONFIG_CQUE_2CONV (0x0001) // Assert ALERT/RDY after two conversions
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#define ADS1015_REG_CONFIG_CQUE_4CONV (0x0002) // Assert ALERT/RDY after four conversions
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#define ADS1015_REG_CONFIG_CQUE_NONE (0x0003) // Disable the comparator and put ALERT/RDY in high state (default)
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*/
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#define EMON_ADS1115_PORTS 4
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#define EMON_ADS1115_MAGNITUDES_PER_PORT 2
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class EmonADS1115Sensor : public EmonSensor {
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public:
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EmonADS1115Sensor(unsigned char address, unsigned char mask, double voltage, unsigned char bits, double ref, double ratio): EmonSensor(voltage, bits, ref, ratio) {
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// Cache
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_address = address;
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_mask = mask;
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_ports = 0;
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while (mask) {
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if (mask & 0x01) ++_ports;
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mask = mask >> 1;
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}
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_count = _ports * EMON_ADS1115_MAGNITUDES_PER_PORT;
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// Initialize
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_ads = new ADS1115(_address);
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_ads->initialize();
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_ads->setMode(ADS1115_MODE_SINGLESHOT);
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_ads->setRate(ADS1115_RATE_860);
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_ads->setGain(ADS1115_PGA_4P096);
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_ads->setConversionReadyPinMode();
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// warmup
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read(_address);
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}
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// Descriptive name of the sensor
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String name() {
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char buffer[30];
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snprintf(buffer, sizeof(buffer), "EMON @ ADS1115 @ I2C (0x%02X)", _address);
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return String(buffer);
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}
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// Descriptive name of the slot # index
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String slot(unsigned char index) {
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char buffer[35];
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unsigned char port = getPort(index / EMON_ADS1115_MAGNITUDES_PER_PORT);
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snprintf(buffer, sizeof(buffer), "EMON @ ADS1115 (A%d) @ I2C (0x%02X)", port, _address);
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return String(buffer);
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}
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// Type for slot # index
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magnitude_t type(unsigned char index) {
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if (index < _count) {
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_error = SENSOR_ERROR_OK;
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unsigned char port = getPort(index / EMON_ADS1115_MAGNITUDES_PER_PORT);
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unsigned char magnitude = index % EMON_ADS1115_MAGNITUDES_PER_PORT;
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if (magnitude == 0) return MAGNITUDE_CURRENT;
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if (magnitude == 1) return MAGNITUDE_POWER_APPARENT;
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//if (magnitude == 2) return MAGNITUDE_ENERGY;
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//if (magnitude == 3) return MAGNITUDE_ENERGY_DELTA;
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}
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_error = SENSOR_ERROR_OUT_OF_RANGE;
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return MAGNITUDE_NONE;
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}
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void pre() {
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//static unsigned long last = 0;
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for (unsigned char index=0; index<_ports; index++) {
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unsigned char port = getPort(index);
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_current[port] = read(port);
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//if (last > 0) {
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// _delta[port] = _current[port] * _voltage * (millis() - last) / 1000;
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//}
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//_energy[port] += _delta[port];
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}
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//last = millis();
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}
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// Current value for slot # index
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double value(unsigned char index) {
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if (index < _count) {
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_error = SENSOR_ERROR_OK;
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unsigned char port = getPort(index / EMON_ADS1115_MAGNITUDES_PER_PORT);
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unsigned char magnitude = index % EMON_ADS1115_MAGNITUDES_PER_PORT;
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if (magnitude == 0) return _current[port];
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if (magnitude == 1) return _current[port] * _voltage;
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//if (magnitude == 2) return _energy[port];
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//if (magnitude == 3) return _delta[port];
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}
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_error = SENSOR_ERROR_OUT_OF_RANGE;
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return 0;
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}
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protected:
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unsigned char getPort(unsigned char index) {
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unsigned char count = 0;
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unsigned char bit = 1;
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for (unsigned char i=0; i<EMON_ADS1115_PORTS; i++) {
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if ((_mask & bit) == bit) {
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if (count == index) return i;
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++count;
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}
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bit <<= 1;
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}
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return 0;
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}
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unsigned int readADC(unsigned char port) {
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if (port < EMON_ADS1115_PORTS) {
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_ads->setMultiplexer(port + 4);
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return _ads->getConversion(true);
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}
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return 0;
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}
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/*
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unsigned int readADC(unsigned char port) {
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if (port > 3) return 0;
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port = 3;
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unsigned int value;
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// Start with default values
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uint16_t config = 0;
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config |= ADS1015_REG_CONFIG_CQUE_NONE; // Disable the comparator (default val)
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config |= ADS1015_REG_CONFIG_CLAT_NONLAT; // Non-latching (default val)
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config |= ADS1015_REG_CONFIG_CPOL_ACTVLOW; // Alert/Rdy active low (default val)
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config |= ADS1015_REG_CONFIG_CMODE_TRAD; // Traditional comparator (default val)
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config |= ADS1015_REG_CONFIG_DR_1600SPS; // 1600 samples per second (default)
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config |= ADS1015_REG_CONFIG_MODE_SINGLE; // Single-shot mode (default)
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config |= ADS1015_REG_CONFIG_OS_SINGLE; // Set 'start single-conversion' bit
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config |= EMON_ADS1115_GAIN; // Set PGA/voltage range
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config |= ((port + 4) << 12); // Set single-ended input channel
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Serial.println(config);
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// Write config register to the ADC
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#if I2C_USE_BRZO
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uint8_t buffer[3];
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buffer[0] = ADS1015_REG_POINTER_CONFIG;
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buffer[1] = config >> 8;
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buffer[2] = config & 0xFF;
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brzo_i2c_start_transaction(_address, I2C_SCL_FREQUENCY);
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brzo_i2c_write(buffer, 3, false);
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//brzo_i2c_end_transaction();
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#else
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Wire.beginTransmission(_address);
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Wire.write((uint8_t) ADS1015_REG_POINTER_CONFIG);
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Wire.write((uint8_t) (config >> 8));
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Wire.write((uint8_t) (config & 0xFF));
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Wire.endTransmission();
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#endif
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// Wait for the conversion to complete
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unsigned long start = millis();
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while (millis() - start < ADS1115_CONVERSIONDELAY) delay(1);
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// Read the conversion results
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// Shift 12-bit results right 4 bits for the ADS1015
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#if I2C_USE_BRZO
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buffer[0] = ADS1015_REG_POINTER_CONVERT;
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//brzo_i2c_start_transaction(_address, I2C_SCL_FREQUENCY);
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brzo_i2c_write(buffer, 1, false);
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brzo_i2c_read(buffer, 2, false);
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brzo_i2c_end_transaction();
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value = (buffer[0] & 0x0F) << 8;
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value |= buffer[1];
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#else
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Wire.beginTransmission(_address);
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Wire.write(ADS1015_REG_POINTER_CONVERT);
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Wire.endTransmission();
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Wire.requestFrom(_address, (unsigned char) 2);
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value = Wire.read() << 8;
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value |= Wire.read();
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#endif
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return value;
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}
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*/
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ADS1115 * _ads;
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unsigned char _address;
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unsigned char _mask;
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unsigned char _ports;
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double _current[EMON_ADS1115_PORTS] = {0, 0, 0, 0};
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//unsigned long _energy[EMON_ADS1115_PORTS] = {0, 0, 0, 0};
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//unsigned long _delta[EMON_ADS1115_PORTS] = {0, 0, 0, 0};
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};
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