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add sensor54 vbus_fs option

This commit is contained in:
barbudor 2022-08-29 14:50:54 +02:00
parent 4cafaf269c
commit 679ef3be86
1 changed files with 15 additions and 3 deletions
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18
tasmota/tasmota_xsns_sensor/xsns_54_ina226.ino
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@ -94,6 +94,7 @@ typedef struct Ina226Info_tag {
uint16_t config;
uint8_t present : 1;
float i_lsb;
float vbus_lsb;
} Ina226Info_t;
/*
@ -267,6 +268,7 @@ void Ina226Init()
//AddLog( LOG_LEVEL_NONE, "Full Scale I in tenths of an amp: %u", Settings->ina226_i_fs[i]);
p->i_lsb = (((float) Settings->ina226_i_fs[i])/10.0f)/32768.0f;
//_debug_fval("i_lsb: %s", p->i_lsb, 7);
p->vbus_lsb = 40.96 / 32768.0; // default 40.96V full scale on 32768 points = 0.00125
// Get shunt resistor value in micro ohms
uint32_t r_shunt_uohms = _expand_r_shunt(Settings->ina226_r_shunt[i]);
@ -295,7 +297,7 @@ float Ina226ReadBus_v(uint8_t device)
uint8_t addr = Ina226Info[device].address;
int16_t reg_bus_v = I2cReadS16( addr, INA226_REG_BUSVOLTAGE);
float result = ((float) reg_bus_v) * 0.00125f;
float result = ((float) reg_bus_v) * Ina226Info[device].vbus_lsb;
return result;
@ -384,6 +386,7 @@ bool Ina226CommandSensor()
uint8_t i, param_count, device, p1 = XdrvMailbox.payload;
uint32_t r_shunt_uohms;
uint16_t compact_r_shunt_uohms;
float vbus_fs;
//AddLog( LOG_LEVEL_NONE, "Command received: %d", XdrvMailbox.payload);
//AddLog( LOG_LEVEL_NONE, "Command data received: %s", XdrvMailbox.data);
@ -455,6 +458,12 @@ bool Ina226CommandSensor()
show_config = true;
break;
case 3: // Set full scale VBus
vbus_fs = CharToFloat(params[1]);
Ina226Info[device].vbus_lsb = vbus_fs / 32768.0;
AddLog(LOG_LEVEL_INFO, PSTR("INA226[%d]: VBusFS=%_f, LSB=%_f"), device, vbus_fs, Ina226Info[device].vbus_lsb);
show_config = true;
break;
default:
serviced = false;
@ -467,15 +476,18 @@ bool Ina226CommandSensor()
if (show_config) {
char shunt_r_str[16];
char fs_i_str[16];
char fs_vbus_str[16];
// Shunt resistance is stored in EEPROM in microohms. Convert to ohms
r_shunt_uohms = _expand_r_shunt(Settings->ina226_r_shunt[device]);
dtostrfd(((float)r_shunt_uohms)/1000000.0f, 6, shunt_r_str);
// Full scale current is stored in EEPROM in tenths of an amp. Convert to amps.
dtostrfd(((float)Settings->ina226_i_fs[device])/10.0f, 1, fs_i_str);
// Full scale vbus is volatile (saved in RAM)
dtostrfd((Ina226Info[device].vbus_lsb*32768.0), 2, fs_vbus_str);
// Send json response
Response_P(PSTR("{\"Sensor54-device-settings-%d\":{\"SHUNT_R\":%s,\"FS_I\":%s}}"),
device + 1, shunt_r_str, fs_i_str);
Response_P(PSTR("{\"Sensor54-device-settings-%d\":{\"SHUNT_R\":%s,\"FS_I\":%s\"FS_V\":%s}}"),
device + 1, shunt_r_str, fs_i_str, fs_vbus_str);
}
return serviced;