Init commit with many years of arduino sketches and projects. I dont know if the esp8266 includes much, but there are also libraries. I hope they dont have crazy automatic versioning through the Arduino IDE.

2026-02-10 18:19:07 +00:00 · 2019-05-30 23:41:53 +02:00
parent 2d047634f2
commit 6c84b31f2c
1480 changed files with 198581 additions and 0 deletions
--- a/libraries/SoftI2CMaster/examples/TSL2561Soft/TSL2561Soft.ino
+++ b/libraries/SoftI2CMaster/examples/TSL2561Soft/TSL2561Soft.ino
@@ -0,0 +1,100 @@
+// Sketch to explore the luminosity sensor TSL2561 (breakout board by Adafruit)
+
+#define SDA_PORT PORTD
+#define SDA_PIN 3
+#define SCL_PORT PORTD
+#define SCL_PIN 5
+
+#include <SoftI2CMaster.h>
+#include "TSL2561Soft.h"
+
+#define ADDR 0x72
+
+//------------------------------------------------------------------------------
+unsigned long computeLux(unsigned long channel0, unsigned long channel1){
+  
+  /* Make sure the sensor isn't saturated! */
+  uint16_t clipThreshold = TSL2561_CLIPPING_402MS;;
+
+  /* Return 0 lux if the sensor is saturated */
+  if ((channel0 > clipThreshold) || (channel1 > clipThreshold))
+  {
+    Serial.println(F("Sensor is saturated"));
+    return 32000;
+  }
+
+  /* Find the ratio of the channel values (Channel1/Channel0) */
+  unsigned long ratio1 = 0;
+  if (channel0 != 0) ratio1 = (channel1 << (TSL2561_LUX_RATIOSCALE+1)) / channel0;
+
+  /* round the ratio value */
+  unsigned long ratio = (ratio1 + 1) >> 1;
+
+  unsigned int b, m;
+
+  if ((ratio >= 0) && (ratio <= TSL2561_LUX_K1T))
+    {b=TSL2561_LUX_B1T; m=TSL2561_LUX_M1T;}
+  else if (ratio <= TSL2561_LUX_K2T)
+    {b=TSL2561_LUX_B2T; m=TSL2561_LUX_M2T;}
+  else if (ratio <= TSL2561_LUX_K3T)
+    {b=TSL2561_LUX_B3T; m=TSL2561_LUX_M3T;}
+  else if (ratio <= TSL2561_LUX_K4T)
+    {b=TSL2561_LUX_B4T; m=TSL2561_LUX_M4T;}
+  else if (ratio <= TSL2561_LUX_K5T)
+    {b=TSL2561_LUX_B5T; m=TSL2561_LUX_M5T;}
+  else if (ratio <= TSL2561_LUX_K6T)
+    {b=TSL2561_LUX_B6T; m=TSL2561_LUX_M6T;}
+  else if (ratio <= TSL2561_LUX_K7T)
+    {b=TSL2561_LUX_B7T; m=TSL2561_LUX_M7T;}
+  else if (ratio > TSL2561_LUX_K8T)
+    {b=TSL2561_LUX_B8T; m=TSL2561_LUX_M8T;}
+
+  unsigned long temp;
+  temp = ((channel0 * b) - (channel1 * m));
+
+  /* Do not allow negative lux value */
+  if (temp < 0) temp = 0;
+
+  /* Round lsb (2^(LUX_SCALE-1)) */
+  temp += (1 << (TSL2561_LUX_LUXSCALE-1));
+
+  /* Strip off fractional portion */
+  uint32_t lux = temp >> TSL2561_LUX_LUXSCALE;
+
+  return lux;
+}
+
+void setup(void) {
+
+  Serial.begin(19200);
+  Serial.println("Initializing ...");
+  i2c_init();
+
+  if (!i2c_start(ADDR | I2C_WRITE)) Serial.println(F("Device does not respond"));
+  if (!i2c_write(0x80)) Serial.println(F("Cannot address reg 0"));
+  if (!i2c_write(0x03)) Serial.println(F("Cannot wake up"));
+  i2c_stop();
+}  
+
+void loop (void) {
+  unsigned int low0, high0, low1, high1;
+  unsigned int chan0, chan1;
+  unsigned int lux;
+
+  delay(1000);
+  i2c_start(ADDR | I2C_WRITE);
+  i2c_write(0x8C);
+  i2c_rep_start(ADDR | I2C_READ);
+  low0 = i2c_read(false);
+  high0 = i2c_read(false);
+  low1 = i2c_read(false);
+  high1 = i2c_read(true);
+  i2c_stop();
+  Serial.print(F("Raw values: chan0="));
+  Serial.print(chan0=(low0+(high0<<8)));
+  Serial.print(F(" / chan1="));
+  Serial.println(chan1=(low1+(high1<<8)));
+  lux = computeLux(chan0,chan1);
+  Serial.print(F("Lux value="));
+  Serial.println(lux);
+}