From a037d80c5da0c19985fe684ac7e38a3f42471394 Mon Sep 17 00:00:00 2001
From: "quentin.perret" <quentinprrt33@gmail.com>
Date: Wed, 3 May 2023 09:14:11 +0200
Subject: [PATCH] add tsl2561 scipt

---
 .gitignore               |  1 +
 Code-C/TSL2561.c         | 66 ++++++++++++++++++++++++++++++++++++++++
 Code-C/include/TSL2561.h | 12 ++++++++
 3 files changed, 79 insertions(+)
 create mode 100644 Code-C/TSL2561.c
 create mode 100644 Code-C/include/TSL2561.h

diff --git a/.gitignore b/.gitignore
index 3680055..e1e226f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,7 @@ Code-C/main
 Code-C/exect
 Code-C/ctest
 Code-C/DartConfiguration.tcl
+Code-C/tsl
 
 Makefile
 
diff --git a/Code-C/TSL2561.c b/Code-C/TSL2561.c
new file mode 100644
index 0000000..180358b
--- /dev/null
+++ b/Code-C/TSL2561.c
@@ -0,0 +1,66 @@
+// Code from the following github repo: https://github.com/ControlEverythingCommunity/TSL2561/blob/master/C/TSL2561.c
+#include "include/TSL2561.h"
+
+void getLux(int file)
+{
+	// Read 4 bytes of data from register(0x0C | 0x80)
+	// ch0 lsb, ch0 msb, ch1 lsb, ch1 msb
+	char reg[1] = {0x0C | 0x80};
+	write(file, reg, 1);
+	char data[4] = {0};
+	if(read(file, data, 4) != 4)
+	{
+		printf("Erorr : Input/output Erorr \n");
+	}
+	else
+	{
+		// Convert the data
+		float ch0 = (data[1] * 256 + data[0]);
+		float ch1 = (data[3] * 256 + data[2]);
+
+		// Output data to screen
+		printf("Full Spectrum(IR + Visible) : %.2f lux \n", ch0);
+		printf("Infrared Value : %.2f lux \n", ch1);
+		printf("Visible Value : %.2f lux \n", (ch0 - ch1));
+		}
+}
+
+int init_TSL2561(char *bus)
+{
+	int file;
+	if((file = open(bus, O_RDWR)) < 0) 
+	{
+		printf("Failed to open the bus. \n");
+		exit(1);
+	}
+	// Get I2C device, TSL2561 I2C address is 0x39(57)
+	ioctl(file, I2C_SLAVE, 0x39);
+
+	// Select control register(0x00 | 0x80)
+	// Power ON mode(0x03)
+	char config[2] = {0};
+	config[0] = 0x00 | 0x80;
+	config[1] = 0x03;
+	write(file, config, 2);
+	// Select timing register(0x01 | 0x80)
+	// Nominal integration time = 402ms(0x02)
+	config[0] = 0x01 | 0x80;
+	config[1] = 0x02;
+	write(file, config, 2);
+	return file;
+}
+
+void TSL2561() 
+{
+	int fe = 1;
+	int file;
+	file = init_TSL2561(bus);
+	while(1)
+	{
+		sleep(1/fe);
+		getLux(file);
+	}
+}
+void main(){
+    TSL2561();
+}
\ No newline at end of file
diff --git a/Code-C/include/TSL2561.h b/Code-C/include/TSL2561.h
new file mode 100644
index 0000000..8781491
--- /dev/null
+++ b/Code-C/include/TSL2561.h
@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/i2c-dev.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+
+char *bus = "/dev/i2c-1";
+
+void getLux(int file);
+int init_TSL2561(char *bus);