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authorWolfgang (Wolle) Ewald <wolfgang.ewald@wolles-elektronikkiste.de>2020-06-27 13:21:08 +0200
committerGitHub <noreply@github.com>2020-06-27 13:21:08 +0200
commit491d824f90534bdd84ca9cfb34aa66556784e75f (patch)
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-rw-r--r--src/ADS1115_WE.h137
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diff --git a/src/ADS1115_WE.h b/src/ADS1115_WE.h
index 8b13789..4a671d4 100644
--- a/src/ADS1115_WE.h
+++ b/src/ADS1115_WE.h
@@ -1 +1,138 @@
+/******************************************************************************
+ *
+ * This is a library for the ADS1115 A/D Converter
+ *
+ * You'll find several example sketches which should enable you to use the library.
+ *
+ * You are free to use it, change it or build on it. In case you like it, it would
+ * be cool if you give it a star.
+ *
+ * If you find bugs, please inform me!
+ *
+ * Written by Wolfgang (Wolle) Ewald
+ * https://wolles-elektronikkiste.de
+ *
+ *
+ ******************************************************************************/
+
+#ifndef ADS1115_WE_H_
+#define ADS1115_WE_H_
+
+#if (ARDUINO >= 100)
+ #include "Arduino.h"
+#else
+ #include "WProgram.h"
+#endif
+
+#include <Wire.h>
+
+/* registers */
+#define ADS1115_CONV_REG 0x00 //Conversion Register
+#define ADS1115_CONFIG_REG 0x01 //Configuration Register
+#define ADS1115_LO_THRESH_REG 0x02 //Low Threshold Register
+#define ADS1115_HI_THRESH_REG 0x03 //High Threshold Register
+
+/* other */
+#define ADS1115_REG_FACTOR 32768
+#define ADS1115_REG_RESET_VAL 0x8583
+
+typedef enum ADS1115_COMP_QUE {
+ ADS1115_ASSERT_AFTER_1 = 0x0000,
+ ADS1115_ASSERT_AFTER_2 = 0x0001,
+ ADS1115_ASSERT_AFTER_3 = 0x0002,
+ ADS1115_DISABLE_ALERT = 0x0003
+} compQue;
+
+typedef enum ADS1115_LATCH {
+ ADS1115_LATCH_DISABLED = 0x0000,
+ ADS1115_LATCH_ENABLED = 0x0004,
+} latch;
+
+typedef enum ADS1115_ALERT_POL {
+ ADS1115_ACT_LOW = 0x0000,
+ ADS1115_ACT_HIGH = 0x0008
+} alertPol;
+
+typedef enum ADS1115_COMP_MODE{
+ ADS1115_MAX_LIMIT = 0x0000,
+ ADS1115_WINDOW = 0x0010
+} compMode;
+
+typedef enum ADS1115_CONV_RATE{
+ ADS1115_8_SPS = 0x0000,
+ ADS1115_16_SPS = 0x0020,
+ ADS1115_32_SPS = 0x0040,
+ ADS1115_64_SPS = 0x0050,
+ ADS1115_128_SPS = 0x0080,
+ ADS1115_250_SPS = 0x00A0,
+ ADS1115_475_SPS = 0x00C0,
+ ADS1115_860_SPS = 0x00E0
+} convRate;
+
+typedef enum ADS1115_MEASURE_MODE{
+ ADS1115_CONTINOUS = 0x0000,
+ ADS1115_SINGLE = 0x0100
+} measureMode;
+
+typedef enum ADS1115_RANGE{
+ ADS1115_RANGE_6144 = 0x0000,
+ ADS1115_RANGE_4096 = 0x0200,
+ ADS1115_RANGE_2048 = 0x0400,
+ ADS1115_RANGE_1024 = 0x0600,
+ ADS1115_RANGE_0512 = 0x0800,
+ ADS1115_RANGE_0256 = 0x0A00,
+} range;
+
+typedef enum ADS1115_MUX{
+ ADS1115_COMP_0_1 = 0x0000,
+ ADS1115_COMP_0_3 = 0x1000,
+ ADS1115_COMP_1_3 = 0x2000,
+ ADS1115_COMP_2_3 = 0x3000,
+ ADS1115_COMP_0_GND = 0x4000,
+ ADS1115_COMP_1_GND = 0x5000,
+ ADS1115_COMP_2_GND = 0x6000,
+ ADS1115_COMP_3_GND = 0x7000
+} mux;
+
+typedef enum ADS1115_STATUS_OR_START{
+ ADS1115_BUSY = 0x0000,
+ ADS1115_START_ISREADY = 0x8000
+} statusOrStart;
+
+
+class ADS1115_WE
+{
+public:
+ ADS1115_WE(int addr);
+ ADS1115_WE(); //sets default I2C Address 0x48
+
+ void reset();
+ bool init();
+ void setAlertPinMode(ADS1115_COMP_QUE mode);
+ void setAlertLatch(ADS1115_LATCH latch);
+ void setAlertPol(ADS1115_ALERT_POL polarity);
+ void setAlertModeAndLimit_V(ADS1115_COMP_MODE mode, float hithres, float lothres);
+ void setConvRate(ADS1115_CONV_RATE rate);
+ void setMeasureMode(ADS1115_MEASURE_MODE mode);
+ void setVoltageRange_mV(ADS1115_RANGE range);
+ void setCompareChannels(ADS1115_MUX mux);
+ bool isBusy();
+ void startSingleMeasurement();
+ float getResult_V();
+ float getResult_mV();
+ void setAlertPinToConversionReady();
+ void unlatchAlertPin();
+
+
+private:
+ uint16_t voltageRange;
+ ADS1115_MEASURE_MODE deviceMeasureMode;
+ int i2cAddress;
+ int16_t calcLimit(float rawLimit);
+ uint8_t writeRegister(uint8_t reg, uint16_t val);
+ uint16_t readRegister(uint8_t reg);
+
+};
+
+#endif