CuVoodoo STM32F1 firmware template
sensor_pzem.h
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1 /* This program is free software: you can redistribute it and/or modify
2  * it under the terms of the GNU General Public License as published by
3  * the Free Software Foundation, either version 3 of the License, or
4  * (at your option) any later version.
5  *
6  * This program is distributed in the hope that it will be useful,
7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9  * GNU General Public License for more details.
10  *
11  * You should have received a copy of the GNU General Public License
12  * along with this program. If not, see <http://www.gnu.org/licenses/>.
13  *
14  */
21 #pragma once
22 
24 extern volatile bool sensor_pzem_measurement_received;
25 
28  SENSOR_PZEM_VOLTAGE = 0,
29  SENSOR_PZEM_CURRENT = 1,
30  SENSOR_PZEM_POWER = 2,
31  SENSOR_PZEM_ENERGY = 3,
32 // SENSOR_PZEM_ADDRESS = 4, // this is a setting, not a measurement
33 // SENSOR_PZEM_ALARM = 5, // this is a setting, not a measurement
34  SENSOR_PZEM_MAX
35 };
36 
40  bool valid;
42  union measurement_t {
43  float voltage;
44  float current;
45  uint16_t power;
46  uint32_t energy;
47  } value;
48 };
49 
51 void sensor_pzem_setup(void);
measurement returned by electricity meter
Definition: sensor_pzem.h:38
enum sensor_pzem_measurement_type_t type
measurement type
Definition: sensor_pzem.h:39
volatile bool sensor_pzem_measurement_received
a measurement response has been received
Definition: sensor_pzem.c:56
void sensor_pzem_measurement_request(uint32_t address, enum sensor_pzem_measurement_type_t type)
request measurement from electricity meter
Definition: sensor_pzem.c:97
void sensor_pzem_setup(void)
setup peripherals to communicate with electricity meter
Definition: sensor_pzem.c:58
possible measurement values
Definition: sensor_pzem.h:42
struct sensor_pzem_measurement_t sensor_pzem_measurement_decode(void)
decode received measurement
Definition: sensor_pzem.c:128
uint32_t energy
measured energy in watts/hour (24 bits)
Definition: sensor_pzem.h:46
sensor_pzem_measurement_type_t
measurements (and configurations) offered by electricity meter
Definition: sensor_pzem.h:27
bool valid
is the measurement valid (e.g.
Definition: sensor_pzem.h:40
uint16_t power
measured power in watts
Definition: sensor_pzem.h:45
union sensor_pzem_measurement_t::measurement_t value
measurement value
float current
measured current in amperes
Definition: sensor_pzem.h:44
float voltage
measured voltage in volts
Definition: sensor_pzem.h:43