CuVoodoo STM32F1 firmware template
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library to query measurements from peacefair PZEM-004 and PZEM-004T electricity meter (code) More...
Go to the source code of this file.
Macros | |
#define | SENSOR_PZEM_USART 2 |
USART peripheral. | |
#define | SENSOR_PZEM_TIMER 2 |
timer peripheral | |
Functions | |
void | sensor_pzem_setup (void) |
setup peripherals to communicate with electricity meter | |
void | sensor_pzem_measurement_request (uint32_t address, enum sensor_pzem_measurement_type_t type) |
request measurement from electricity meter More... | |
struct sensor_pzem_measurement_t | sensor_pzem_measurement_decode (void) |
decode received measurement More... | |
void USART_ISR() | SENSOR_PZEM_USART (void) |
USART interrupt service routine called when data has been transmitted or received. | |
void TIM_ISR() | SENSOR_PZEM_TIMER (void) |
interrupt service routine called on timeout | |
Variables | |
static uint8_t | rx_buffer [7] = {0} |
buffer for received response | |
static volatile uint8_t | rx_i = 0 |
current position of read received data | |
static uint8_t | tx_buffer [7] = {0} |
buffer for request to transmit | |
static volatile uint8_t | tx_i = 0 |
current position of transmitted data | |
volatile bool | sensor_pzem_measurement_received = false |
a measurement response has been received | |
library to query measurements from peacefair PZEM-004 and PZEM-004T electricity meter (code)
Definition in file sensor_pzem.c.
struct sensor_pzem_measurement_t sensor_pzem_measurement_decode | ( | void | ) |
decode received measurement
Definition at line 128 of file sensor_pzem.c.
void sensor_pzem_measurement_request | ( | uint32_t | address, |
enum sensor_pzem_measurement_type_t | type | ||
) |
request measurement from electricity meter
[in] | address | electricity meter device address |
[in] | type | measurement type to request |
Definition at line 97 of file sensor_pzem.c.