You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
280 lines
11 KiB
280 lines
11 KiB
// -----------------------------------------------------------------------------
|
|
// Energy monitor sensor
|
|
// -----------------------------------------------------------------------------
|
|
|
|
#pragma once
|
|
|
|
#include "Arduino.h"
|
|
#include "BaseSensor.h"
|
|
#include "EmonSensor.h"
|
|
|
|
#include <ADS1115.h>
|
|
|
|
/*
|
|
#if I2C_USE_BRZO
|
|
#include <brzo_i2c.h>
|
|
#else
|
|
#include <Wire.h>
|
|
#endif
|
|
|
|
#define ADS1015_CONVERSIONDELAY (1)
|
|
#define ADS1115_CONVERSIONDELAY (8)
|
|
|
|
#define ADS1015_BIT_SHIFT (4)
|
|
#define ADS1115_BIT_SHIFT (0)
|
|
|
|
#define ADS1015_REG_POINTER_MASK (0x03)
|
|
#define ADS1015_REG_POINTER_CONVERT (0x00)
|
|
#define ADS1015_REG_POINTER_CONFIG (0x01)
|
|
#define ADS1015_REG_POINTER_LOWTHRESH (0x02)
|
|
#define ADS1015_REG_POINTER_HITHRESH (0x03)
|
|
|
|
#define ADS1015_REG_CONFIG_OS_MASK (0x8000)
|
|
#define ADS1015_REG_CONFIG_OS_SINGLE (0x8000) // Write: Set to start a single-conversion
|
|
#define ADS1015_REG_CONFIG_OS_BUSY (0x0000) // Read: Bit = 0 when conversion is in progress
|
|
#define ADS1015_REG_CONFIG_OS_NOTBUSY (0x8000) // Read: Bit = 1 when device is not performing a conversion
|
|
|
|
#define ADS1015_REG_CONFIG_MUX_MASK (0x7000)
|
|
#define ADS1015_REG_CONFIG_MUX_DIFF_0_1 (0x0000) // Differential P = AIN0, N = AIN1 (default)
|
|
#define ADS1015_REG_CONFIG_MUX_DIFF_0_3 (0x1000) // Differential P = AIN0, N = AIN3
|
|
#define ADS1015_REG_CONFIG_MUX_DIFF_1_3 (0x2000) // Differential P = AIN1, N = AIN3
|
|
#define ADS1015_REG_CONFIG_MUX_DIFF_2_3 (0x3000) // Differential P = AIN2, N = AIN3
|
|
#define ADS1015_REG_CONFIG_MUX_SINGLE_0 (0x4000) // Single-ended AIN0
|
|
#define ADS1015_REG_CONFIG_MUX_SINGLE_1 (0x5000) // Single-ended AIN1
|
|
#define ADS1015_REG_CONFIG_MUX_SINGLE_2 (0x6000) // Single-ended AIN2
|
|
#define ADS1015_REG_CONFIG_MUX_SINGLE_3 (0x7000) // Single-ended AIN3
|
|
|
|
#define ADS1015_REG_CONFIG_PGA_MASK (0x0E00)
|
|
#define ADS1015_REG_CONFIG_PGA_6_144V (0x0000) // +/-6.144V range = Gain 2/3
|
|
#define ADS1015_REG_CONFIG_PGA_4_096V (0x0200) // +/-4.096V range = Gain 1
|
|
#define ADS1015_REG_CONFIG_PGA_2_048V (0x0400) // +/-2.048V range = Gain 2 (default)
|
|
#define ADS1015_REG_CONFIG_PGA_1_024V (0x0600) // +/-1.024V range = Gain 4
|
|
#define ADS1015_REG_CONFIG_PGA_0_512V (0x0800) // +/-0.512V range = Gain 8
|
|
#define ADS1015_REG_CONFIG_PGA_0_256V (0x0A00) // +/-0.256V range = Gain 16
|
|
|
|
#define ADS1015_REG_CONFIG_MODE_MASK (0x0100)
|
|
#define ADS1015_REG_CONFIG_MODE_CONTIN (0x0000) // Continuous conversion mode
|
|
#define ADS1015_REG_CONFIG_MODE_SINGLE (0x0100) // Power-down single-shot mode (default)
|
|
|
|
#define ADS1015_REG_CONFIG_DR_MASK (0x00E0)
|
|
#define ADS1015_REG_CONFIG_DR_128SPS (0x0000) // 128 samples per second
|
|
#define ADS1015_REG_CONFIG_DR_250SPS (0x0020) // 250 samples per second
|
|
#define ADS1015_REG_CONFIG_DR_490SPS (0x0040) // 490 samples per second
|
|
#define ADS1015_REG_CONFIG_DR_920SPS (0x0060) // 920 samples per second
|
|
#define ADS1015_REG_CONFIG_DR_1600SPS (0x0080) // 1600 samples per second (default)
|
|
#define ADS1015_REG_CONFIG_DR_2400SPS (0x00A0) // 2400 samples per second
|
|
#define ADS1015_REG_CONFIG_DR_3300SPS (0x00C0) // 3300 samples per second
|
|
|
|
#define ADS1015_REG_CONFIG_CMODE_MASK (0x0010)
|
|
#define ADS1015_REG_CONFIG_CMODE_TRAD (0x0000) // Traditional comparator with hysteresis (default)
|
|
#define ADS1015_REG_CONFIG_CMODE_WINDOW (0x0010) // Window comparator
|
|
|
|
#define ADS1015_REG_CONFIG_CPOL_MASK (0x0008)
|
|
#define ADS1015_REG_CONFIG_CPOL_ACTVLOW (0x0000) // ALERT/RDY pin is low when active (default)
|
|
#define ADS1015_REG_CONFIG_CPOL_ACTVHI (0x0008) // ALERT/RDY pin is high when active
|
|
|
|
#define ADS1015_REG_CONFIG_CLAT_MASK (0x0004) // Determines if ALERT/RDY pin latches once asserted
|
|
#define ADS1015_REG_CONFIG_CLAT_NONLAT (0x0000) // Non-latching comparator (default)
|
|
#define ADS1015_REG_CONFIG_CLAT_LATCH (0x0004) // Latching comparator
|
|
|
|
#define ADS1015_REG_CONFIG_CQUE_MASK (0x0003)
|
|
#define ADS1015_REG_CONFIG_CQUE_1CONV (0x0000) // Assert ALERT/RDY after one conversions
|
|
#define ADS1015_REG_CONFIG_CQUE_2CONV (0x0001) // Assert ALERT/RDY after two conversions
|
|
#define ADS1015_REG_CONFIG_CQUE_4CONV (0x0002) // Assert ALERT/RDY after four conversions
|
|
#define ADS1015_REG_CONFIG_CQUE_NONE (0x0003) // Disable the comparator and put ALERT/RDY in high state (default)
|
|
*/
|
|
|
|
#define EMON_ADS1115_CHANNELS 4
|
|
#define EMON_ADS1115_MAGNITUDES_PER_PORT 2
|
|
|
|
class EmonADS1115Sensor : public EmonSensor {
|
|
|
|
public:
|
|
|
|
EmonADS1115Sensor(unsigned char address, unsigned char mask, double voltage, unsigned char bits, double ref, double ratio): EmonSensor(voltage, bits, ref, ratio) {
|
|
|
|
// Cache
|
|
_address = address;
|
|
_mask = mask;
|
|
_ports = 0;
|
|
while (mask) {
|
|
if (mask & 0x01) ++_ports;
|
|
mask = mask >> 1;
|
|
}
|
|
_count = _ports * EMON_ADS1115_MAGNITUDES_PER_PORT;
|
|
|
|
// Initialize
|
|
_ads = new ADS1115(_address);
|
|
_ads->initialize();
|
|
_ads->setMode(ADS1115_MODE_SINGLESHOT);
|
|
_ads->setRate(ADS1115_RATE_860);
|
|
_ads->setGain(ADS1115_PGA_4P096);
|
|
_ads->setConversionReadyPinMode();
|
|
|
|
// warmup
|
|
read(_address);
|
|
|
|
}
|
|
|
|
// Descriptive name of the sensor
|
|
String name() {
|
|
char buffer[30];
|
|
snprintf(buffer, sizeof(buffer), "EMON @ ADS1115 @ I2C (0x%02X)", _address);
|
|
return String(buffer);
|
|
}
|
|
|
|
// Descriptive name of the slot # index
|
|
String slot(unsigned char index) {
|
|
char buffer[35];
|
|
unsigned char port = getChannel(index / EMON_ADS1115_MAGNITUDES_PER_PORT);
|
|
snprintf(buffer, sizeof(buffer), "EMON @ ADS1115 (A%d) @ I2C (0x%02X)", port, _address);
|
|
return String(buffer);
|
|
}
|
|
|
|
// Type for slot # index
|
|
magnitude_t type(unsigned char index) {
|
|
if (index < _count) {
|
|
_error = SENSOR_ERROR_OK;
|
|
unsigned char port = getChannel(index / EMON_ADS1115_MAGNITUDES_PER_PORT);
|
|
unsigned char magnitude = index % EMON_ADS1115_MAGNITUDES_PER_PORT;
|
|
if (magnitude == 0) return MAGNITUDE_CURRENT;
|
|
if (magnitude == 1) return MAGNITUDE_POWER_APPARENT;
|
|
//if (magnitude == 2) return MAGNITUDE_ENERGY;
|
|
//if (magnitude == 3) return MAGNITUDE_ENERGY_DELTA;
|
|
}
|
|
_error = SENSOR_ERROR_OUT_OF_RANGE;
|
|
return MAGNITUDE_NONE;
|
|
}
|
|
|
|
void pre() {
|
|
//static unsigned long last = 0;
|
|
for (unsigned char index=0; index<_ports; index++) {
|
|
unsigned char port = getChannel(index);
|
|
_current[port] = read(port);
|
|
//if (last > 0) {
|
|
// _delta[port] = _current[port] * _voltage * (millis() - last) / 1000;
|
|
//}
|
|
//_energy[port] += _delta[port];
|
|
}
|
|
//last = millis();
|
|
}
|
|
|
|
// Current value for slot # index
|
|
double value(unsigned char index) {
|
|
|
|
if (index < _count) {
|
|
_error = SENSOR_ERROR_OK;
|
|
unsigned char port = getChannel(index / EMON_ADS1115_MAGNITUDES_PER_PORT);
|
|
unsigned char magnitude = index % EMON_ADS1115_MAGNITUDES_PER_PORT;
|
|
if (magnitude == 0) return _current[port];
|
|
if (magnitude == 1) return _current[port] * _voltage;
|
|
//if (magnitude == 2) return _energy[port];
|
|
//if (magnitude == 3) return _delta[port];
|
|
}
|
|
|
|
_error = SENSOR_ERROR_OUT_OF_RANGE;
|
|
return 0;
|
|
|
|
}
|
|
|
|
protected:
|
|
|
|
unsigned char getChannel(unsigned char port) {
|
|
unsigned char count = 0;
|
|
unsigned char bit = 1;
|
|
for (unsigned char channel=0; channel<EMON_ADS1115_CHANNELS; channel++) {
|
|
if ((_mask & bit) == bit) {
|
|
if (count == port) return channel;
|
|
++count;
|
|
}
|
|
bit <<= 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
unsigned int readADC(unsigned char channel) {
|
|
if (channel < EMON_ADS1115_CHANNELS) {
|
|
_ads->setMultiplexer(channel + 4);
|
|
return _ads->getConversion(true);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
unsigned int readADC(unsigned char channel) {
|
|
|
|
if (channel > 3) return 0;
|
|
channel = 3;
|
|
unsigned int value;
|
|
|
|
// Start with default values
|
|
uint16_t config = 0;
|
|
|
|
config |= ADS1015_REG_CONFIG_CQUE_NONE; // Disable the comparator (default val)
|
|
config |= ADS1015_REG_CONFIG_CLAT_NONLAT; // Non-latching (default val)
|
|
config |= ADS1015_REG_CONFIG_CPOL_ACTVLOW; // Alert/Rdy active low (default val)
|
|
config |= ADS1015_REG_CONFIG_CMODE_TRAD; // Traditional comparator (default val)
|
|
config |= ADS1015_REG_CONFIG_DR_1600SPS; // 1600 samples per second (default)
|
|
config |= ADS1015_REG_CONFIG_MODE_SINGLE; // Single-shot mode (default)
|
|
config |= ADS1015_REG_CONFIG_OS_SINGLE; // Set 'start single-conversion' bit
|
|
config |= EMON_ADS1115_GAIN; // Set PGA/voltage range
|
|
config |= ((channel + 4) << 12); // Set single-ended input channel
|
|
|
|
Serial.println(config);
|
|
|
|
// Write config register to the ADC
|
|
#if I2C_USE_BRZO
|
|
uint8_t buffer[3];
|
|
buffer[0] = ADS1015_REG_POINTER_CONFIG;
|
|
buffer[1] = config >> 8;
|
|
buffer[2] = config & 0xFF;
|
|
brzo_i2c_start_transaction(_address, I2C_SCL_FREQUENCY);
|
|
brzo_i2c_write(buffer, 3, false);
|
|
//brzo_i2c_end_transaction();
|
|
#else
|
|
Wire.beginTransmission(_address);
|
|
Wire.write((uint8_t) ADS1015_REG_POINTER_CONFIG);
|
|
Wire.write((uint8_t) (config >> 8));
|
|
Wire.write((uint8_t) (config & 0xFF));
|
|
Wire.endTransmission();
|
|
#endif
|
|
|
|
// Wait for the conversion to complete
|
|
unsigned long start = millis();
|
|
while (millis() - start < ADS1115_CONVERSIONDELAY) delay(1);
|
|
|
|
// Read the conversion results
|
|
// Shift 12-bit results right 4 bits for the ADS1015
|
|
#if I2C_USE_BRZO
|
|
buffer[0] = ADS1015_REG_POINTER_CONVERT;
|
|
//brzo_i2c_start_transaction(_address, I2C_SCL_FREQUENCY);
|
|
brzo_i2c_write(buffer, 1, false);
|
|
brzo_i2c_read(buffer, 2, false);
|
|
brzo_i2c_end_transaction();
|
|
value = (buffer[0] & 0x0F) << 8;
|
|
value |= buffer[1];
|
|
#else
|
|
Wire.beginTransmission(_address);
|
|
Wire.write(ADS1015_REG_POINTER_CONVERT);
|
|
Wire.endTransmission();
|
|
Wire.requestFrom(_address, (unsigned char) 2);
|
|
value = Wire.read() << 8;
|
|
value |= Wire.read();
|
|
#endif
|
|
|
|
return value;
|
|
|
|
}
|
|
*/
|
|
|
|
ADS1115 * _ads;
|
|
|
|
unsigned char _address;
|
|
unsigned char _mask;
|
|
unsigned char _ports;
|
|
double _current[EMON_ADS1115_CHANNELS] = {0, 0, 0, 0};
|
|
//unsigned long _energy[EMON_ADS1115_CHANNELS] = {0, 0, 0, 0};
|
|
//unsigned long _delta[EMON_ADS1115_CHANNELS] = {0, 0, 0, 0};
|
|
|
|
|
|
};
|