esp-idf-pzem

ESPZEM Sensor Driver

Features

• Read sensor specific sensor values
• Reset energy counter for a specific address

Usage

Here is the sensor's data structure definition:

typedef struct pzem_sensor_t {
  float voltage;
  float current;
  float power;
  float energy;
  float frequency;
  float pf;
  uint16_t alarms;
} pzem_sensor_t;

First of all the driver have to be properly configured using following options:

• config PZEM_UART_PORT_NUM - Number of device's uart port (for an instance: 2)
• config PZEM_UART_RXD and PZEM_UART_RXD
• config PZEM_DEBUG_ENABLE enables debug output and embedds additional code.

API

int pzem_sensor_init();                   // Initializes the UART port
void pzem_sensor_request(pzem_sensor_t *, uint8_t addr);   // Read values into `pzem_sensor`
int pzem_reset(uint8_t addr);             // Resets energy counter for specific device

License

GPLv2