[137] | 1 | #if ARDUINO >= 100
|
---|
| 2 | #include "Arduino.h"
|
---|
| 3 | #else
|
---|
| 4 | #include "WProgram.h"
|
---|
| 5 | #endif
|
---|
| 6 |
|
---|
| 7 | #ifdef __AVR_ATtiny85__
|
---|
| 8 | #include "TinyWireM.h"
|
---|
| 9 | #define Wire TinyWireM
|
---|
| 10 | #else
|
---|
| 11 | #include <Wire.h>
|
---|
| 12 | #endif
|
---|
| 13 |
|
---|
| 14 | #include "Adafruit_VCNL4000.h"
|
---|
| 15 |
|
---|
| 16 | /**************************************************************************/
|
---|
| 17 | /*!
|
---|
| 18 | @brief Instantiates a new VCNL4000 class
|
---|
| 19 | */
|
---|
| 20 | /**************************************************************************/
|
---|
| 21 | Adafruit_VCNL4000::Adafruit_VCNL4000() {
|
---|
| 22 | }
|
---|
| 23 |
|
---|
| 24 | /**************************************************************************/
|
---|
| 25 | /*!
|
---|
| 26 | @brief Setups the HW
|
---|
| 27 | */
|
---|
| 28 | /**************************************************************************/
|
---|
| 29 | boolean Adafruit_VCNL4000::begin(uint8_t addr) {
|
---|
| 30 | _i2caddr = addr;
|
---|
| 31 | Wire.begin();
|
---|
| 32 |
|
---|
| 33 | uint8_t rev = read8(VCNL4000_PRODUCTID);
|
---|
| 34 | //Serial.println(rev, HEX);
|
---|
| 35 | if ((rev & 0xF0) != 0x10) {
|
---|
| 36 | return false;
|
---|
| 37 | }
|
---|
| 38 |
|
---|
| 39 | setLEDcurrent(20);
|
---|
| 40 | setFrequency(VCNL4000_781K25);
|
---|
| 41 | write8(VCNL4000_PROXINITYADJUST, 0x81);
|
---|
| 42 |
|
---|
| 43 | return true;
|
---|
| 44 | }
|
---|
| 45 |
|
---|
| 46 |
|
---|
| 47 | /**************************************************************************/
|
---|
| 48 | /*!
|
---|
| 49 | @brief Get and set the LED current draw
|
---|
| 50 | */
|
---|
| 51 | /**************************************************************************/
|
---|
| 52 |
|
---|
| 53 | void Adafruit_VCNL4000::setLEDcurrent(uint8_t c) {
|
---|
| 54 | if (c > 20) c = 20;
|
---|
| 55 | write8(VCNL4000_IRLED, c);
|
---|
| 56 | }
|
---|
| 57 |
|
---|
| 58 | uint8_t Adafruit_VCNL4000::getLEDcurrent(void) {
|
---|
| 59 | return read8(VCNL4000_IRLED);
|
---|
| 60 | }
|
---|
| 61 |
|
---|
| 62 | /**************************************************************************/
|
---|
| 63 | /*!
|
---|
| 64 | @brief Get and set the measurement signal frequency
|
---|
| 65 | */
|
---|
| 66 | /**************************************************************************/
|
---|
| 67 |
|
---|
| 68 | void Adafruit_VCNL4000::setFrequency(vcnl4000_freq f) {
|
---|
| 69 | write8(VCNL4000_SIGNALFREQ, f);
|
---|
| 70 | }
|
---|
| 71 |
|
---|
| 72 |
|
---|
| 73 | /**************************************************************************/
|
---|
| 74 | /*!
|
---|
| 75 | @brief Get proximity measurement
|
---|
| 76 | */
|
---|
| 77 | /**************************************************************************/
|
---|
| 78 |
|
---|
| 79 | uint16_t Adafruit_VCNL4000::readProximity(void) {
|
---|
| 80 | write8(VCNL4000_COMMAND, VCNL4000_MEASUREPROXIMITY);
|
---|
| 81 | while (1) {
|
---|
| 82 | //Serial.println(read8(VCNL4000_INTSTAT), HEX);
|
---|
| 83 | uint8_t result = read8(VCNL4000_COMMAND);
|
---|
| 84 | //Serial.print("Ready = 0x"); Serial.println(result, HEX);
|
---|
| 85 | if (result & VCNL4000_PROXIMITYREADY) {
|
---|
| 86 | return read16(VCNL4000_PROXIMITYDATA);
|
---|
| 87 | }
|
---|
| 88 | delay(1);
|
---|
| 89 | }
|
---|
| 90 | }
|
---|
| 91 |
|
---|
| 92 | uint16_t Adafruit_VCNL4000::readAmbient(void) {
|
---|
| 93 | write8(VCNL4000_COMMAND, VCNL4000_MEASUREAMBIENT);
|
---|
| 94 | while (1) {
|
---|
| 95 | //Serial.println(read8(VCNL4000_INTSTAT), HEX);
|
---|
| 96 | uint8_t result = read8(VCNL4000_COMMAND);
|
---|
| 97 | //Serial.print("Ready = 0x"); Serial.println(result, HEX);
|
---|
| 98 | if (result & VCNL4000_AMBIENTREADY) {
|
---|
| 99 | return read16(VCNL4000_AMBIENTDATA);
|
---|
| 100 | }
|
---|
| 101 | delay(1);
|
---|
| 102 | }
|
---|
| 103 | }
|
---|
| 104 |
|
---|
| 105 | /**************************************************************************/
|
---|
| 106 | /*!
|
---|
| 107 | @brief I2C low level interfacing
|
---|
| 108 | */
|
---|
| 109 | /**************************************************************************/
|
---|
| 110 |
|
---|
| 111 |
|
---|
| 112 | // Read 1 byte from the VCNL4000 at 'address'
|
---|
| 113 | uint8_t Adafruit_VCNL4000::read8(uint8_t address)
|
---|
| 114 | {
|
---|
| 115 | uint8_t data;
|
---|
| 116 |
|
---|
| 117 | Wire.beginTransmission(_i2caddr);
|
---|
| 118 | #if ARDUINO >= 100
|
---|
| 119 | Wire.write(address);
|
---|
| 120 | #else
|
---|
| 121 | Wire.send(address);
|
---|
| 122 | #endif
|
---|
| 123 | Wire.endTransmission();
|
---|
| 124 |
|
---|
| 125 | delayMicroseconds(170); // delay required
|
---|
| 126 |
|
---|
| 127 | Wire.requestFrom(_i2caddr, (uint8_t)1);
|
---|
| 128 | while(!Wire.available());
|
---|
| 129 |
|
---|
| 130 | #if ARDUINO >= 100
|
---|
| 131 | return Wire.read();
|
---|
| 132 | #else
|
---|
| 133 | return Wire.receive();
|
---|
| 134 | #endif
|
---|
| 135 | }
|
---|
| 136 |
|
---|
| 137 |
|
---|
| 138 | // Read 2 byte from the VCNL4000 at 'address'
|
---|
| 139 | uint16_t Adafruit_VCNL4000::read16(uint8_t address)
|
---|
| 140 | {
|
---|
| 141 | uint16_t data;
|
---|
| 142 |
|
---|
| 143 | Wire.beginTransmission(_i2caddr);
|
---|
| 144 | #if ARDUINO >= 100
|
---|
| 145 | Wire.write(address);
|
---|
| 146 | #else
|
---|
| 147 | Wire.send(address);
|
---|
| 148 | #endif
|
---|
| 149 | Wire.endTransmission();
|
---|
| 150 |
|
---|
| 151 | Wire.requestFrom(_i2caddr, (uint8_t)2);
|
---|
| 152 | while(!Wire.available());
|
---|
| 153 | #if ARDUINO >= 100
|
---|
| 154 | data = Wire.read();
|
---|
| 155 | data <<= 8;
|
---|
| 156 | while(!Wire.available());
|
---|
| 157 | data |= Wire.read();
|
---|
| 158 | #else
|
---|
| 159 | data = Wire.receive();
|
---|
| 160 | data <<= 8;
|
---|
| 161 | while(!Wire.available());
|
---|
| 162 | data |= Wire.receive();
|
---|
| 163 | #endif
|
---|
| 164 |
|
---|
| 165 | return data;
|
---|
| 166 | }
|
---|
| 167 |
|
---|
| 168 | // write 1 byte
|
---|
| 169 | void Adafruit_VCNL4000::write8(uint8_t address, uint8_t data)
|
---|
| 170 | {
|
---|
| 171 | Wire.beginTransmission(_i2caddr);
|
---|
| 172 | #if ARDUINO >= 100
|
---|
| 173 | Wire.write(address);
|
---|
| 174 | Wire.write(data);
|
---|
| 175 | #else
|
---|
| 176 | Wire.send(address);
|
---|
| 177 | Wire.send(data);
|
---|
| 178 | #endif
|
---|
| 179 | Wire.endTransmission();
|
---|
| 180 | }
|
---|