Raspberry Pi C driver for the TSL2561 sensor.
This driver is basically a port of the Adafruit TSL2561 Light Sensor Driver.
This fork drops the Python support as that is readily available using pip3 and the Adafruit install mechanism. Resources to use python can be found elsewhere.
Install the following packages:
- i2c-tools
- libi2c-dev
# sudo apt install i2c-tools libi2c-dev
Depending on usage needs, you can instanatiate a new I2C bus if you need, or use the exposed /dev/i2c-1 which is available using raspi-config.
To create a new i2c bus see the following
https://www.instructables.com/Raspberry-PI-Multiple-I2c-Devices/
This library uses cmake. Change directory into the parent and do the following
# mkdir build
# cd build
# cmake ..
# make
# sudo make install
#include "tsl2561.h"
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
int main(int argc, char **argv) {
int address = 0x39;
char *i2c_device = "/dev/i2c-1";
void *tsl = tsl2561_init(address, i2c_device);
tsl2561_enable_autogain(tsl);
tsl2561_set_integration_time(tsl, TSL2561_INTEGRATION_TIME_13MS);
if(tsl == NULL){ // check if error is present
exit(1);
}
int c;
long lux;
for(c = 0; c < 5; c++){
lux = tsl2561_lux(tsl);
printf("lux %lu\n", lux);
usleep(3 * 1000 * 1000);
}
tsl2561_close(tsl);
i2c_device = NULL;
return 0;
}TSL2561, a C/C++ library, is licensed under BSD as specified here; the derivative work tsl2561 is provided under the MIT licence. This fork maintains the MIT license.