|
|
@ -0,0 +1,326 @@ |
|
|
|
// ----------------------------------------------------------------------------- |
|
|
|
// Energy monitor sensor |
|
|
|
// ----------------------------------------------------------------------------- |
|
|
|
|
|
|
|
#pragma once |
|
|
|
|
|
|
|
#include "Arduino.h" |
|
|
|
#include "BaseSensor.h" |
|
|
|
#include "EmonSensor.h" |
|
|
|
|
|
|
|
#if EMON_ADSX115_USE_I2CDEVLIB |
|
|
|
#include <ADS1115.h> |
|
|
|
#else |
|
|
|
#if I2C_USE_BRZO |
|
|
|
#include <brzo_i2c.h> |
|
|
|
#else |
|
|
|
#include <Wire.h> |
|
|
|
#endif |
|
|
|
#endif |
|
|
|
|
|
|
|
#define ADS1015_CONVERSIONDELAY (1) |
|
|
|
#define ADS1115_CONVERSIONDELAY (8) |
|
|
|
|
|
|
|
#define ADS1015_BIT_SHIFT (4) |
|
|
|
#define ADS1115_BIT_SHIFT (0) |
|
|
|
|
|
|
|
#define ADS1X15_REG_POINTER_MASK (0x03) |
|
|
|
#define ADS1X15_REG_POINTER_CONVERT (0x00) |
|
|
|
#define ADS1X15_REG_POINTER_CONFIG (0x01) |
|
|
|
#define ADS1X15_REG_POINTER_LOWTHRESH (0x02) |
|
|
|
#define ADS1X15_REG_POINTER_HITHRESH (0x03) |
|
|
|
|
|
|
|
#define ADS1X15_REG_CONFIG_OS_MASK (0x8000) |
|
|
|
#define ADS1X15_REG_CONFIG_OS_SINGLE (0x8000) // Write: Set to start a single-conversion |
|
|
|
#define ADS1X15_REG_CONFIG_OS_BUSY (0x0000) // Read: Bit = 0 when conversion is in progress |
|
|
|
#define ADS1X15_REG_CONFIG_OS_NOTBUSY (0x8000) // Read: Bit = 1 when device is not performing a conversion |
|
|
|
|
|
|
|
#define ADS1X15_REG_CONFIG_MUX_MASK (0x7000) |
|
|
|
#define ADS1X15_REG_CONFIG_MUX_DIFF_0_1 (0x0000) // Differential P = AIN0, N = AIN1 (default) |
|
|
|
#define ADS1X15_REG_CONFIG_MUX_DIFF_0_3 (0x1000) // Differential P = AIN0, N = AIN3 |
|
|
|
#define ADS1X15_REG_CONFIG_MUX_DIFF_1_3 (0x2000) // Differential P = AIN1, N = AIN3 |
|
|
|
#define ADS1X15_REG_CONFIG_MUX_DIFF_2_3 (0x3000) // Differential P = AIN2, N = AIN3 |
|
|
|
#define ADS1X15_REG_CONFIG_MUX_SINGLE_0 (0x4000) // Single-ended AIN0 |
|
|
|
#define ADS1X15_REG_CONFIG_MUX_SINGLE_1 (0x5000) // Single-ended AIN1 |
|
|
|
#define ADS1X15_REG_CONFIG_MUX_SINGLE_2 (0x6000) // Single-ended AIN2 |
|
|
|
#define ADS1X15_REG_CONFIG_MUX_SINGLE_3 (0x7000) // Single-ended AIN3 |
|
|
|
|
|
|
|
#define ADS1X15_REG_CONFIG_PGA_MASK (0x0E00) |
|
|
|
#define ADS1X15_REG_CONFIG_PGA_6_144V (0x0000) // +/-6.144V range = Gain 2/3 |
|
|
|
#define ADS1X15_REG_CONFIG_PGA_4_096V (0x0200) // +/-4.096V range = Gain 1 |
|
|
|
#define ADS1X15_REG_CONFIG_PGA_2_048V (0x0400) // +/-2.048V range = Gain 2 (default) |
|
|
|
#define ADS1X15_REG_CONFIG_PGA_1_024V (0x0600) // +/-1.024V range = Gain 4 |
|
|
|
#define ADS1X15_REG_CONFIG_PGA_0_512V (0x0800) // +/-0.512V range = Gain 8 |
|
|
|
#define ADS1X15_REG_CONFIG_PGA_0_256V (0x0A00) // +/-0.256V range = Gain 16 |
|
|
|
|
|
|
|
#define ADS1X15_REG_CONFIG_MODE_MASK (0x0100) |
|
|
|
#define ADS1X15_REG_CONFIG_MODE_CONTIN (0x0000) // Continuous conversion mode |
|
|
|
#define ADS1X15_REG_CONFIG_MODE_SINGLE (0x0100) // Power-down single-shot mode (default) |
|
|
|
|
|
|
|
#define ADS1X15_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 ADS1115_REG_CONFIG_DR_8SPS (0x0000) // 8 samples per second |
|
|
|
#define ADS1115_REG_CONFIG_DR_16SPS (0x0020) // 16 samples per second |
|
|
|
#define ADS1115_REG_CONFIG_DR_32SPS (0x0040) // 32 samples per second |
|
|
|
#define ADS1115_REG_CONFIG_DR_64SPS (0x0060) // 64 samples per second |
|
|
|
#define ADS1115_REG_CONFIG_DR_128SPS (0x0080) // 128 samples per second (default) |
|
|
|
#define ADS1115_REG_CONFIG_DR_250SPS (0x00A0) // 250 samples per second |
|
|
|
#define ADS1115_REG_CONFIG_DR_475SPS (0x00C0) // 475 samples per second |
|
|
|
#define ADS1115_REG_CONFIG_DR_860SPS (0x00E0) // 860 samples per second |
|
|
|
|
|
|
|
#define ADS1X15_REG_CONFIG_CMODE_MASK (0x0010) |
|
|
|
#define ADS1X15_REG_CONFIG_CMODE_TRAD (0x0000) // Traditional comparator with hysteresis (default) |
|
|
|
#define ADS1X15_REG_CONFIG_CMODE_WINDOW (0x0010) // Window comparator |
|
|
|
|
|
|
|
#define ADS1X15_REG_CONFIG_CPOL_MASK (0x0008) |
|
|
|
#define ADS1X15_REG_CONFIG_CPOL_ACTVLOW (0x0000) // ALERT/RDY pin is low when active (default) |
|
|
|
#define ADS1X15_REG_CONFIG_CPOL_ACTVHI (0x0008) // ALERT/RDY pin is high when active |
|
|
|
|
|
|
|
#define ADS1X15_REG_CONFIG_CLAT_MASK (0x0004) // Determines if ALERT/RDY pin latches once asserted |
|
|
|
#define ADS1X15_REG_CONFIG_CLAT_NONLAT (0x0000) // Non-latching comparator (default) |
|
|
|
#define ADS1X15_REG_CONFIG_CLAT_LATCH (0x0004) // Latching comparator |
|
|
|
|
|
|
|
#define ADS1X15_REG_CONFIG_CQUE_MASK (0x0003) |
|
|
|
#define ADS1X15_REG_CONFIG_CQUE_1CONV (0x0000) // Assert ALERT/RDY after one conversions |
|
|
|
#define ADS1X15_REG_CONFIG_CQUE_2CONV (0x0001) // Assert ALERT/RDY after two conversions |
|
|
|
#define ADS1X15_REG_CONFIG_CQUE_4CONV (0x0002) // Assert ALERT/RDY after four conversions |
|
|
|
#define ADS1X15_REG_CONFIG_CQUE_NONE (0x0003) // Disable the comparator and put ALERT/RDY in high state (default) |
|
|
|
#define ADS1X15_CHANNELS 4 |
|
|
|
#define EMON_ADS1X15_MAGNITUDES_PER_PORT 2 |
|
|
|
|
|
|
|
class EmonADS1X15Sensor : public EmonSensor { |
|
|
|
|
|
|
|
public: |
|
|
|
|
|
|
|
EmonADS1X15Sensor(unsigned char address, bool is_ads1115, unsigned char mask, double voltage, unsigned char bits, double ref, double ratio): EmonSensor(voltage, bits, ref, ratio) { |
|
|
|
|
|
|
|
// Cache |
|
|
|
_is_ads1115 = is_ads1115; |
|
|
|
_address = address; |
|
|
|
_mask = mask; |
|
|
|
_ports = 0; |
|
|
|
while (mask) { |
|
|
|
if (mask & 0x01) ++_ports; |
|
|
|
mask = mask >> 1; |
|
|
|
} |
|
|
|
_count = _ports * EMON_ADS1X15_MAGNITUDES_PER_PORT; |
|
|
|
|
|
|
|
// initialize |
|
|
|
init(); |
|
|
|
|
|
|
|
// warmup |
|
|
|
warmup(); |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
// Descriptive name of the sensor |
|
|
|
String name() { |
|
|
|
char buffer[30]; |
|
|
|
snprintf(buffer, sizeof(buffer), "EMON @ ADS1%d15 @ I2C (0x%02X)", _is_ads1115 ? 1 : 0, _address); |
|
|
|
return String(buffer); |
|
|
|
} |
|
|
|
|
|
|
|
// Descriptive name of the slot # index |
|
|
|
String slot(unsigned char index) { |
|
|
|
char buffer[35]; |
|
|
|
unsigned char channel = getChannel(index % _ports); |
|
|
|
snprintf(buffer, sizeof(buffer), "EMON @ ADS1%d15 (A%d) @ I2C (0x%02X)", _is_ads1115 ? 1 : 0, channel, _address); |
|
|
|
return String(buffer); |
|
|
|
} |
|
|
|
|
|
|
|
// Type for slot # index |
|
|
|
magnitude_t type(unsigned char index) { |
|
|
|
if (index < _count) { |
|
|
|
_error = SENSOR_ERROR_OK; |
|
|
|
unsigned char magnitude = index / _ports; |
|
|
|
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 port=0; port<_ports; port++) { |
|
|
|
unsigned char channel = getChannel(port); |
|
|
|
_current[port] = getCurrent(channel); |
|
|
|
//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 = index % _ports; |
|
|
|
unsigned char magnitude = index / _ports; |
|
|
|
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<ADS1X15_CHANNELS; channel++) { |
|
|
|
if ((_mask & bit) == bit) { |
|
|
|
if (count == port) return channel; |
|
|
|
++count; |
|
|
|
} |
|
|
|
bit <<= 1; |
|
|
|
} |
|
|
|
return 0; |
|
|
|
} |
|
|
|
|
|
|
|
void warmup() { |
|
|
|
for (unsigned char port=0; port<_ports; port++) { |
|
|
|
unsigned char channel = getChannel(port); |
|
|
|
getCurrent(channel); |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
//---------------------------------------------------------------------- |
|
|
|
// I2C |
|
|
|
//---------------------------------------------------------------------- |
|
|
|
|
|
|
|
void init() { |
|
|
|
#if EMON_ADSX115_USE_I2CDEVLIB |
|
|
|
_ads = new ADS1115(_address); |
|
|
|
_ads->initialize(); |
|
|
|
_ads->setMode(ADS1115_MODE_CONTINUOUS); |
|
|
|
_ads->setRate(ADS1115_RATE_860); |
|
|
|
_ads->setGain(ADS1115_PGA_4P096); |
|
|
|
#endif |
|
|
|
} |
|
|
|
|
|
|
|
#if EMON_ADSX115_USE_I2CDEVLIB == 0 |
|
|
|
|
|
|
|
void setChannel(unsigned char channel, bool continuous) { |
|
|
|
|
|
|
|
// Start with default values |
|
|
|
uint16_t config = 0; |
|
|
|
config |= ADS1X15_REG_CONFIG_PGA_4_096V; // Set PGA/voltage range |
|
|
|
if (continuous) { |
|
|
|
config |= ADS1X15_REG_CONFIG_MODE_CONTIN; // Continuous mode (default) |
|
|
|
} else { |
|
|
|
config |= ADS1X15_REG_CONFIG_MODE_SINGLE; // Single-shot mode |
|
|
|
config |= ADS1X15_REG_CONFIG_OS_SINGLE; // Set 'start single-conversion' bit |
|
|
|
} |
|
|
|
config |= ADS1X15_REG_CONFIG_DR_MASK; // Always at max speed |
|
|
|
config |= ADS1X15_REG_CONFIG_CMODE_TRAD; // Traditional comparator (default val) |
|
|
|
config |= ADS1X15_REG_CONFIG_CPOL_ACTVLOW; // Alert/Rdy active low (default val) |
|
|
|
config |= ADS1X15_REG_CONFIG_CLAT_NONLAT; // Non-latching (default val) |
|
|
|
config |= ADS1X15_REG_CONFIG_CQUE_NONE; // Disable the comparator (default val) |
|
|
|
config |= ((channel + 4) << 12); // Set single-ended input channel |
|
|
|
|
|
|
|
// Write config register to the ADC |
|
|
|
#if I2C_USE_BRZO |
|
|
|
uint8_t buffer[3]; |
|
|
|
buffer[0] = ADS1X15_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) ADS1X15_REG_POINTER_CONFIG); |
|
|
|
Wire.write((uint8_t) (config >> 8)); |
|
|
|
Wire.write((uint8_t) (config & 0xFF)); |
|
|
|
Wire.endTransmission(); |
|
|
|
#endif |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
#endif |
|
|
|
|
|
|
|
double getCurrent(unsigned char channel) { |
|
|
|
|
|
|
|
#if EMON_ADSX115_USE_I2CDEVLIB |
|
|
|
_ads->setMultiplexer(channel + 4); |
|
|
|
#else |
|
|
|
// Force stop by setting single mode and back to continuous |
|
|
|
static unsigned char previous = 9; |
|
|
|
if (previous != channel) { |
|
|
|
setChannel(previous, false); |
|
|
|
delay(50); |
|
|
|
previous = channel; |
|
|
|
} |
|
|
|
setChannel(channel, true); |
|
|
|
#endif |
|
|
|
|
|
|
|
return read(channel, _pivot[channel]); |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
unsigned int readADC(unsigned char channel) { |
|
|
|
|
|
|
|
unsigned int value = 0; |
|
|
|
|
|
|
|
#if EMON_ADSX115_USE_I2CDEVLIB |
|
|
|
value = _ads->getConversion(); |
|
|
|
|
|
|
|
#elif I2C_USE_BRZO |
|
|
|
uint8_t buffer[3]; |
|
|
|
buffer[0] = ADS1X15_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] << 8; |
|
|
|
value |= buffer[1]; |
|
|
|
|
|
|
|
#else |
|
|
|
Wire.beginTransmission(_address); |
|
|
|
Wire.write(ADS1X15_REG_POINTER_CONVERT); |
|
|
|
Wire.endTransmission(); |
|
|
|
Wire.requestFrom(_address, (unsigned char) 2); |
|
|
|
value |= Wire.read() << 8; |
|
|
|
value |= Wire.read(); |
|
|
|
#endif |
|
|
|
|
|
|
|
if (!_is_ads1115) value >>= ADS1015_BIT_SHIFT; |
|
|
|
|
|
|
|
delayMicroseconds(500); |
|
|
|
|
|
|
|
return value; |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
#if EMON_ADSX115_USE_I2CDEVLIB |
|
|
|
ADS1115 * _ads; |
|
|
|
#endif |
|
|
|
|
|
|
|
bool _is_ads1115 = true; |
|
|
|
unsigned char _address; |
|
|
|
unsigned char _mask; |
|
|
|
unsigned char _ports; |
|
|
|
double _pivot[ADS1X15_CHANNELS] = {0}; |
|
|
|
double _current[ADS1X15_CHANNELS] = {0}; |
|
|
|
//unsigned long _energy[ADS1X15_CHANNELS] = {0}; |
|
|
|
//unsigned long _delta[ADS1X15_CHANNELS] = {0}; |
|
|
|
|
|
|
|
|
|
|
|
}; |