Files
OpenMQTT-Gateway/ZsensorTSL2561.ino
T
Florian da859cc6ae Some memory optimization for Arduino UNO following this thread:
https://community.openmqttgateway.com/t/arduino-uno-ethernet-shield-reboots-on-receiving-rf-signal-on-v-0-9/346/22
Rework led management to avoid use of global variables
and specify special JSON_MSG_BUFFER for arduino UNO
led can now be used for all the boards

generalize use of F macro
for memory optimization
change jsonbuffer calculation method
reduce pubsubclient max packet size for uno and nano
2019-03-09 17:28:54 +01:00

121 lines
4.2 KiB
Arduino

/*
OpenMQTTGateway Addon - ESP8266 or Arduino program for home automation
Act as a wifi or ethernet gateway between your 433mhz/infrared IR signal and a MQTT broker
Send and receiving command by MQTT
This is the Light Meter Addon based on modules with a TSL2561:
- Measures ambient Light Intensity in Lux (lx), Foot Candela (ftcd) and Watt/m^2 (wattsm2)
- Required Hardware Module: TSL2561 (for instance Banggood.com product ID 1129550)
- Dependencies: Adafruit_TSL2561 and Adafruit_Sensor
Connection Scheme:
--------------------
TSL2561------> Arduino Uno ----------> ESP8266
==============================================
Vcc ---------> 3.3V -----------------> 3.3V
GND ---------> GND ------------------> GND
SCL ---------> Pin A5 ---------------> D1
SDA ---------> Pin A4 ---------------> D2
ADD ---------> N/C (Not Connected) --> N/C (Not Connected)
Copyright: (c) Chris Broekema
This file is part of OpenMQTTGateway.
OpenMQTTGateway is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenMQTTGateway is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef ZsensorTSL2561
#include "math.h"
#include "Wire.h"
#include <Adafruit_Sensor.h>
#include <Adafruit_TSL2561_U.h>
Adafruit_TSL2561_Unified tsl = Adafruit_TSL2561_Unified(TSL2561_ADDR_FLOAT, 12345);
void displaySensorDetails(void)
{
sensor_t sensor;
tsl.getSensor(&sensor);
trc(F("------------------------------------"));
trc("Sensor: " + String(sensor.name));
trc("Driver Ver: " + String(sensor.version));
trc("Unique ID: " + String(sensor.sensor_id));
trc("Max Value: " + String(sensor.max_value) + " lux");
trc("Min Value: " + String(sensor.min_value) + " lux");
trc("Resolution: " + String(sensor.resolution) + " lux");
trc(F("------------------------------------"));
trc(F(""));
delay(500);
}
void setupZsensorTSL2561()
{
Wire.begin();
Wire.beginTransmission(TSL2561_ADDR_FLOAT);
if (!tsl.begin())
{
trc(F("No TSL2561 detected"));
}
// enable auto ranging
// tsl.setGain(TSL2561_GAIN_1X); /* No gain ... use in bright light to avoid sensor saturation */
// tsl.setGain(TSL2561_GAIN_16X); /* 16x gain ... use in low light to boost sensitivity */
tsl.enableAutoRange(true); /* Auto-gain ... switches automatically between 1x and 16x */
// since we're slowly sampling, enable high resolution but slow mode TSL2561
// tsl.setIntegrationTime(TSL2561_INTEGRATIONTIME_13MS); /* fast but low resolution */
// tsl.setIntegrationTime(TSL2561_INTEGRATIONTIME_101MS); /* medium resolution and speed */
tsl.setIntegrationTime(TSL2561_INTEGRATIONTIME_402MS);
trc(F("TSL2561 Initialized. Printing detials now."));
displaySensorDetails();
}
void MeasureLightIntensityTSL2561()
{
if (millis() > (timetsl2561 + TimeBetweenReadingtsl2561)) {
static uint32_t persisted_lux;
timetsl2561 = millis();
trc(F("Creating TSL2561 buffer"));
const int JSON_MSG_CALC_BUFFER = JSON_OBJECT_SIZE(4);
StaticJsonBuffer<JSON_MSG_CALC_BUFFER> jsonBuffer;
JsonObject& TSL2561data = jsonBuffer.createObject();
sensors_event_t event;
tsl.getEvent(&event);
if (event.light)
// if event.light == 0 the sensor is clipping, do not send
{
if (persisted_lux != event.light || tsl2561_always ) {
persisted_lux = event.light;
TSL2561data.set("lux", (float)event.light);
TSL2561data.set("ftcd", (float)(event.light)/10.764);
TSL2561data.set("wattsm2", (float)(event.light)/683.0);
pub(subjectTSL12561toMQTT,TSL2561data);
} else {
trc(F("Same lux value, do not send"));
}
} else {
trc(F("Failed to read from TSL2561"));
}
}
}
#endif