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update temp sensor plugin

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This commit is contained in:
MX
2022-10-25 03:59:40 +03:00
parent fd127cee8c
commit cf4a0b06e2
1 changed files with 42 additions and 23 deletions
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65
applications/plugins/temperature_sensor/temperature_sensor.c
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@@ -3,6 +3,7 @@
#include <furi.h> #include <furi.h>
#include <furi_hal.h> #include <furi_hal.h>
#include <furi_hal_i2c.h> #include <furi_hal_i2c.h>
#include <math.h>
#include <gui/gui.h> #include <gui/gui.h>
#include <input/input.h> #include <input/input.h>
@@ -47,7 +48,8 @@ static TSStatus temperature_sensor_current_status = TSSInitializing;
// Temperature and Humidity data buffers, ready to print // Temperature and Humidity data buffers, ready to print
char ts_data_buffer_temperature_c[DATA_BUFFER_SIZE]; char ts_data_buffer_temperature_c[DATA_BUFFER_SIZE];
char ts_data_buffer_temperature_f[DATA_BUFFER_SIZE]; char ts_data_buffer_temperature_f[DATA_BUFFER_SIZE];
char ts_data_buffer_humidity[DATA_BUFFER_SIZE]; char ts_data_buffer_relative_humidity[DATA_BUFFER_SIZE];
char ts_data_buffer_absolute_humidity[DATA_BUFFER_SIZE];
// <sumary> // <sumary>
// Executes an I2C cmd (trx) // Executes an I2C cmd (trx)
@@ -78,8 +80,9 @@ static bool temperature_sensor_cmd(uint8_t cmd, uint8_t* buffer, uint8_t size) {
ret = furi_hal_i2c_rx(I2C_BUS, HTU21D_ADDRESS, buffer, size, timeout); ret = furi_hal_i2c_rx(I2C_BUS, HTU21D_ADDRESS, buffer, size, timeout);
furi_hal_i2c_release(I2C_BUS); furi_hal_i2c_release(I2C_BUS);
} }
} else } else {
furi_hal_i2c_release(I2C_BUS); furi_hal_i2c_release(I2C_BUS);
}
return ret; return ret;
} }
@@ -130,7 +133,7 @@ static void temperature_sensor_draw_callback(Canvas* canvas, void* ctx) {
canvas_clear(canvas); canvas_clear(canvas);
canvas_set_font(canvas, FontPrimary); canvas_set_font(canvas, FontPrimary);
canvas_draw_str(canvas, 2, 10, "HTU21D Sensor"); canvas_draw_str(canvas, 2, 10, "HTU21D/Si7021 Sensor");
canvas_set_font(canvas, FontSecondary); canvas_set_font(canvas, FontSecondary);
canvas_draw_str(canvas, 2, 62, "Press back to exit."); canvas_draw_str(canvas, 2, 62, "Press back to exit.");
@@ -143,23 +146,25 @@ static void temperature_sensor_draw_callback(Canvas* canvas, void* ctx) {
canvas_draw_str(canvas, 2, 30, "No sensor found!"); canvas_draw_str(canvas, 2, 30, "No sensor found!");
break; break;
case TSSPendingUpdate: { case TSSPendingUpdate: {
canvas_draw_str(canvas, 6, 24, "Temperature"); canvas_draw_str(canvas, 3, 24, "Temperature");
canvas_draw_str(canvas, 80, 24, "Humidity"); canvas_draw_str(canvas, 68, 24, "Humidity");
// Draw vertical lines // Draw vertical lines
canvas_draw_line(canvas, 68, 16, 68, 50); canvas_draw_line(canvas, 61, 16, 61, 50);
canvas_draw_line(canvas, 69, 16, 69, 50); canvas_draw_line(canvas, 62, 16, 62, 50);
// Draw horizontal line // Draw horizontal line
canvas_draw_line(canvas, 3, 27, 144, 27); canvas_draw_line(canvas, 2, 27, 122, 27);
// Draw temperature and humidity values // Draw temperature and humidity values
canvas_draw_str(canvas, 14, 38, ts_data_buffer_temperature_c); canvas_draw_str(canvas, 8, 38, ts_data_buffer_temperature_c);
canvas_draw_str(canvas, 48, 38, "C"); canvas_draw_str(canvas, 42, 38, "C");
canvas_draw_str(canvas, 14, 48, ts_data_buffer_temperature_f); canvas_draw_str(canvas, 8, 48, ts_data_buffer_temperature_f);
canvas_draw_str(canvas, 48, 48, "F"); canvas_draw_str(canvas, 42, 48, "F");
canvas_draw_str(canvas, 78, 42, ts_data_buffer_humidity); canvas_draw_str(canvas, 68, 38, ts_data_buffer_relative_humidity);
canvas_draw_str(canvas, 112, 42, "%"); canvas_draw_str(canvas, 100, 38, "%");
canvas_draw_str(canvas, 68, 48, ts_data_buffer_absolute_humidity);
canvas_draw_str(canvas, 100, 48, "g/m3");
} break; } break;
default: default:
@@ -195,10 +200,13 @@ int32_t temperature_sensor_app(void* p) {
UNUSED(p); UNUSED(p);
furi_hal_power_suppress_charge_enter(); furi_hal_power_suppress_charge_enter();
// Declare our variables // Declare our variables and assign variables a default value
TSEvent tsEvent; TSEvent tsEvent;
bool sensorFound = false; bool sensorFound = false;
double celsius, fahrenheit, humidity; double celsius, fahrenheit, rel_humidity, abs_humidity = TS_DEFAULT_VALUE;
// Used for absolute humidity calculation
double vapour_pressure = 0;
FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(TSEvent)); FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(TSEvent));
@@ -219,9 +227,6 @@ int32_t temperature_sensor_app(void* p) {
// Used to notify the user by blinking red (error) or blue (fetch successful) // Used to notify the user by blinking red (error) or blue (fetch successful)
NotificationApp* notifications = furi_record_open(RECORD_NOTIFICATION); NotificationApp* notifications = furi_record_open(RECORD_NOTIFICATION);
// Assign variables a default value
celsius = fahrenheit = humidity = TS_DEFAULT_VALUE;
while(1) { while(1) {
furi_check(furi_message_queue_get(event_queue, &tsEvent, FuriWaitForever) == FuriStatusOk); furi_check(furi_message_queue_get(event_queue, &tsEvent, FuriWaitForever) == FuriStatusOk);
@@ -235,26 +240,40 @@ int32_t temperature_sensor_app(void* p) {
} else if(tsEvent.type == TSEventTypeTick) { } else if(tsEvent.type == TSEventTypeTick) {
// Update sensor data // Update sensor data
// Fetch data and set the sensor current status accordingly // Fetch data and set the sensor current status accordingly
sensorFound = temperature_sensor_fetch_data(&celsius, &humidity); sensorFound = temperature_sensor_fetch_data(&celsius, &rel_humidity);
temperature_sensor_current_status = (sensorFound ? TSSPendingUpdate : TSSNoSensor); temperature_sensor_current_status = (sensorFound ? TSSPendingUpdate : TSSNoSensor);
if(sensorFound) { if(sensorFound) {
// Blink blue // Blink blue
notification_message(notifications, &sequence_blink_blue_100); notification_message(notifications, &sequence_blink_blue_100);
if(celsius != TS_DEFAULT_VALUE && humidity != TS_DEFAULT_VALUE) { if(celsius != TS_DEFAULT_VALUE && rel_humidity != TS_DEFAULT_VALUE) {
// Convert celsius to fahrenheit // Convert celsius to fahrenheit
fahrenheit = (celsius * 9 / 5) + 32; fahrenheit = (celsius * 9 / 5) + 32;
// Calculate absolute humidity - For more info refer to https://github.com/Mywk/FlipperTemperatureSensor/issues/1
// Calculate saturation vapour pressure first
vapour_pressure =
(double)6.11 *
pow(10, (double)(((double)7.5 * celsius) / ((double)237.3 + celsius)));
// Then the vapour pressure in Pa
vapour_pressure = vapour_pressure * rel_humidity;
// Calculate absolute humidity
abs_humidity =
(double)2.16679 * (double)(vapour_pressure / ((double)273.15 + celsius));
// Fill our buffers here, not on the canvas draw callback // Fill our buffers here, not on the canvas draw callback
snprintf(ts_data_buffer_temperature_c, DATA_BUFFER_SIZE, "%.2f", celsius); snprintf(ts_data_buffer_temperature_c, DATA_BUFFER_SIZE, "%.2f", celsius);
snprintf(ts_data_buffer_temperature_f, DATA_BUFFER_SIZE, "%.2f", fahrenheit); snprintf(ts_data_buffer_temperature_f, DATA_BUFFER_SIZE, "%.2f", fahrenheit);
snprintf(ts_data_buffer_humidity, DATA_BUFFER_SIZE, "%.2f", humidity); snprintf(
ts_data_buffer_relative_humidity, DATA_BUFFER_SIZE, "%.2f", rel_humidity);
snprintf(
ts_data_buffer_absolute_humidity, DATA_BUFFER_SIZE, "%.2f", abs_humidity);
} }
} else { } else {
// Reset our variables to their default values // Reset our variables to their default values
celsius = fahrenheit = humidity = TS_DEFAULT_VALUE; celsius = fahrenheit = rel_humidity = abs_humidity = TS_DEFAULT_VALUE;
// Blink red // Blink red
notification_message(notifications, &sequence_blink_red_100); notification_message(notifications, &sequence_blink_red_100);