This program demonstrates ambient light sensing on the QW Shields.
Revision 0:6c17d1a79f75, committed 2015-11-05
- Comitter:
- quicksand
- Date:
- Thu Nov 05 09:40:10 2015 +0000
- Commit message:
- This program demonstrates the ambient light sensing functionality of the VCNL4010 on the QW Shields.
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VCNL4010.cpp Thu Nov 05 09:40:10 2015 +0000 @@ -0,0 +1,287 @@ +/* +Copyright (c) 2012 Vishay GmbH, www.vishay.com +author: DS, version 1.21 + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +#include "VCNL4010.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0::VCNL40x0(PinName sda, PinName scl, unsigned char addr) : _i2c(sda, scl), _addr(addr) { + // _i2c.frequency(1000000); // set I2C frequency to 1MHz +} + +VCNL40x0::~VCNL40x0() { +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::SetCommandRegister (unsigned char Command) { + + _send[0] = REGISTER_COMMAND; // VCNL40x0 Configuration reister + _send[1] = Command; + _i2c.write(VCNL40x0_ADDRESS,_send, 2); // Write 2 bytes on I2C + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::ReadCommandRegister (unsigned char *Command) { + + _send[0] = REGISTER_COMMAND; // VCNL40x0 Configuration register + _i2c.write(VCNL40x0_ADDRESS,_send, 1); // Write 1 byte on I2C + _i2c.read(VCNL40x0_ADDRESS+1,_receive, 1); // Read 1 byte on I2C + + *Command = (unsigned char)(_receive[0]); + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::ReadID (unsigned char *ID) { + + _send[0] = REGISTER_ID; // VCNL40x0 product ID revision register + _i2c.write(VCNL40x0_ADDRESS, _send, 1); // Write 1 byte on I2C + _i2c.read(VCNL40x0_ADDRESS+1, _receive, 1); // Read 1 byte on I2C + + *ID = (unsigned char)(_receive[0]); + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::SetCurrent (unsigned char Current) { + + _send[0] = REGISTER_PROX_CURRENT; // VCNL40x0 IR LED Current register + _send[1] = Current; + _i2c.write(VCNL40x0_ADDRESS,_send, 2); // Write 2 bytes on I2C + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::ReadCurrent (unsigned char *Current) { + + _send[0] = REGISTER_PROX_CURRENT; // VCNL40x0 IR LED current register + _i2c.write(VCNL40x0_ADDRESS,_send, 1); // Write 1 byte on I2C + _i2c.read(VCNL40x0_ADDRESS+1,_receive, 1); // Read 1 byte on I2C + + *Current = (unsigned char)(_receive[0]); + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::SetProximityRate (unsigned char ProximityRate) { + + _send[0] = REGISTER_PROX_RATE; // VCNL40x0 Proximity rate register + _send[1] = ProximityRate; + _i2c.write(VCNL40x0_ADDRESS,_send, 2); // Write 2 bytes on I2C + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::SetAmbiConfiguration (unsigned char AmbiConfiguration) { + + _send[0] = REGISTER_AMBI_PARAMETER; // VCNL40x0 Ambilight configuration + _send[1] = AmbiConfiguration; + _i2c.write(VCNL40x0_ADDRESS,_send, 2); // Write 2 bytes on I2C + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::SetInterruptControl (unsigned char InterruptControl) { + + _send[0] = REGISTER_INTERRUPT_CONTROL; // VCNL40x0 Interrupt Control register + _send[1] = InterruptControl; + _i2c.write(VCNL40x0_ADDRESS,_send, 2); // Write 2 bytes on I2C + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::ReadInterruptControl (unsigned char *InterruptControl) { + + _send[0] = REGISTER_INTERRUPT_CONTROL; // VCNL40x0 Interrupt Control register + _i2c.write(VCNL40x0_ADDRESS,_send, 1); // Write 1 byte on I2C + _i2c.read(VCNL40x0_ADDRESS+1,_receive, 1); // Read 1 byte on I2C + + *InterruptControl = (unsigned char)(_receive[0]); + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::SetInterruptStatus (unsigned char InterruptStatus) { + + _send[0] = REGISTER_INTERRUPT_STATUS; // VCNL40x0 Interrupt Status register + _send[1] = InterruptStatus; + _i2c.write(VCNL40x0_ADDRESS,_send, 2); // Write 2 bytes on I2C + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::SetModulatorTimingAdjustment (unsigned char ModulatorTimingAdjustment) { + + _send[0] = REGISTER_PROX_TIMING; // VCNL40x0 Modulator Timing Adjustment register + _send[1] = ModulatorTimingAdjustment; + _i2c.write(VCNL40x0_ADDRESS,_send, 2); // Write 2 bytes on I2C + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::ReadInterruptStatus (unsigned char *InterruptStatus) { + + _send[0] = REGISTER_INTERRUPT_STATUS; // VCNL40x0 Interrupt Status register + _i2c.write(VCNL40x0_ADDRESS,_send, 1); // Write 1 byte on I2C + _i2c.read(VCNL40x0_ADDRESS+1,_receive, 1); // Read 1 byte on I2C + + *InterruptStatus = (unsigned char)(_receive[0]); + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::ReadProxiValue (unsigned int *ProxiValue) { + + _send[0] = REGISTER_PROX_VALUE; // VCNL40x0 Proximity Value register + _i2c.write(VCNL40x0_ADDRESS, _send, 1); // Write 1 byte on I2C + _i2c.read(VCNL40x0_ADDRESS+1, _receive, 2); // Read 2 bytes on I2C + *ProxiValue = ((unsigned int)_receive[0] << 8 | (unsigned char)_receive[1]); + + return VCNL40x0_ERROR_OK; + +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::ReadAmbiValue (unsigned int *AmbiValue) { + + _send[0] = REGISTER_AMBI_VALUE; // VCNL40x0 Ambient Light Value register + _i2c.write(VCNL40x0_ADDRESS, _send, 1); // Write 1 byte on I2C + _i2c.read(VCNL40x0_ADDRESS+1, _receive, 2); // Read 2 bytes on I2C + *AmbiValue = ((unsigned int)_receive[0] << 8 | (unsigned char)_receive[1]); + + return VCNL40x0_ERROR_OK; + +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::SetLowThreshold (unsigned int LowThreshold) { + + unsigned char LoByte=0, HiByte=0; + + LoByte = (unsigned char)(LowThreshold & 0x00ff); + HiByte = (unsigned char)((LowThreshold & 0xff00)>>8); + + _send[0] = REGISTER_INTERRUPT_LOW_THRES; // VCNL40x0 Low Threshold Register, Hi Byte + _send[1] = HiByte; + _i2c.write(VCNL40x0_ADDRESS,_send, 2); // Write 2 bytes on I2C + + _send[0] = REGISTER_INTERRUPT_LOW_THRES+1; // VCNL40x0 Low Threshold Register, Lo Byte + _send[1] = LoByte; + _i2c.write(VCNL40x0_ADDRESS,_send, 2); // Write 2 bytes on I2C + + return VCNL40x0_ERROR_OK; + +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::SetHighThreshold (unsigned int HighThreshold) { + + unsigned char LoByte=0, HiByte=0; + + LoByte = (unsigned char)(HighThreshold & 0x00ff); + HiByte = (unsigned char)((HighThreshold & 0xff00)>>8); + + _send[0] = REGISTER_INTERRUPT_HIGH_THRES; // VCNL40x0 High Threshold Register, Hi Byte + _send[1] = HiByte; + _i2c.write(VCNL40x0_ADDRESS,_send, 2); // Write 2 bytes on I2C + + _send[0] = REGISTER_INTERRUPT_HIGH_THRES+1; // VCNL40x0 High Threshold Register, Lo Byte + _send[1] = LoByte; + _i2c.write(VCNL40x0_ADDRESS,_send, 2); // Write 2 bytes on I2C + + return VCNL40x0_ERROR_OK; + +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::ReadProxiOnDemand (unsigned int *ProxiValue) { + + unsigned char Command=0; + + // enable prox value on demand + SetCommandRegister (COMMAND_PROX_ENABLE | COMMAND_PROX_ON_DEMAND); + + // wait on prox data ready bit + do { + ReadCommandRegister (&Command); // read command register + } while (!(Command & COMMAND_MASK_PROX_DATA_READY)); + + ReadProxiValue (ProxiValue); // read prox value + + SetCommandRegister (COMMAND_ALL_DISABLE); // stop prox value on demand + + return VCNL40x0_ERROR_OK; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +VCNL40x0Error_e VCNL40x0::ReadAmbiOnDemand (unsigned int *AmbiValue) { + + unsigned char Command=0; + + // enable ambi value on demand + SetCommandRegister (COMMAND_PROX_ENABLE | COMMAND_AMBI_ON_DEMAND); + + // wait on ambi data ready bit + do { + ReadCommandRegister (&Command); // read command register + } while (!(Command & COMMAND_MASK_AMBI_DATA_READY)); + + ReadAmbiValue (AmbiValue); // read ambi value + + SetCommandRegister (COMMAND_ALL_DISABLE); // stop ambi value on demand + + return VCNL40x0_ERROR_OK; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VCNL4010.h Thu Nov 05 09:40:10 2015 +0000 @@ -0,0 +1,188 @@ +/* +Copyright (c) 2012 Vishay GmbH, www.vishay.com +author: DS, version 1.2 + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +#ifndef VCNL40x0_H +#define VCNL40x0_H + +#include "mbed.h" + +// Library for the Vishay Proximity/Ambient Light Sensor VCNL4010/4020 +// The VCNL4x00 is a I2C digital Proximity and Ambient Light Sensor in a small SMD package + +#define VCNL40x0_ADDRESS (0x26) // 001 0011 shifted left 1 bit = 0x26 + +// registers +#define REGISTER_COMMAND (0x80) +#define REGISTER_ID (0x81) +#define REGISTER_PROX_RATE (0x82) +#define REGISTER_PROX_CURRENT (0x83) +#define REGISTER_AMBI_PARAMETER (0x84) +#define REGISTER_AMBI_VALUE (0x85) +#define REGISTER_PROX_VALUE (0x87) +#define REGISTER_INTERRUPT_CONTROL (0x89) +#define REGISTER_INTERRUPT_LOW_THRES (0x8a) +#define REGISTER_INTERRUPT_HIGH_THRES (0x8c) +#define REGISTER_INTERRUPT_STATUS (0x8e) +#define REGISTER_PROX_TIMING (0x8f) +#define REGISTER_AMBI_IR_LIGHT_LEVEL (0x90) // This register is not intended to be use by customer + +// Bits in Command register (0x80) +#define COMMAND_ALL_DISABLE (0x00) +#define COMMAND_SELFTIMED_MODE_ENABLE (0x01) +#define COMMAND_PROX_ENABLE (0x02) +#define COMMAND_AMBI_ENABLE (0x04) +#define COMMAND_PROX_ON_DEMAND (0x08) +#define COMMAND_AMBI_ON_DEMAND (0x10) +#define COMMAND_MASK_PROX_DATA_READY (0x20) +#define COMMAND_MASK_AMBI_DATA_READY (0x40) +#define COMMAND_MASK_LOCK (0x80) + +// Bits in Product ID Revision Register (0x81) +#define PRODUCT_MASK_REVISION_ID (0x0f) +#define PRODUCT_MASK_PRODUCT_ID (0xf0) + +// Bits in Prox Measurement Rate register (0x82) +#define PROX_MEASUREMENT_RATE_2 (0x00) // DEFAULT +#define PROX_MEASUREMENT_RATE_4 (0x01) +#define PROX_MEASUREMENT_RATE_8 (0x02) +#define PROX_MEASUREMENT_RATE_16 (0x03) +#define PROX_MEASUREMENT_RATE_31 (0x04) +#define PROX_MEASUREMENT_RATE_62 (0x05) +#define PROX_MEASUREMENT_RATE_125 (0x06) +#define PROX_MEASUREMENT_RATE_250 (0x07) +#define PROX_MASK_MEASUREMENT_RATE (0x07) + +// Bits in Procimity LED current setting (0x83) +#define PROX_MASK_LED_CURRENT (0x3f) // DEFAULT = 2 +#define PROX_MASK_FUSE_PROG_ID (0xc0) + +// Bits in Ambient Light Parameter register (0x84) +#define AMBI_PARA_AVERAGE_1 (0x00) +#define AMBI_PARA_AVERAGE_2 (0x01) +#define AMBI_PARA_AVERAGE_4 (0x02) +#define AMBI_PARA_AVERAGE_8 (0x03) +#define AMBI_PARA_AVERAGE_16 (0x04) +#define AMBI_PARA_AVERAGE_32 (0x05) // DEFAULT +#define AMBI_PARA_AVERAGE_64 (0x06) +#define AMBI_PARA_AVERAGE_128 (0x07) +#define AMBI_MASK_PARA_AVERAGE (0x07) + +#define AMBI_PARA_AUTO_OFFSET_ENABLE (0x08) // DEFAULT enable +#define AMBI_MASK_PARA_AUTO_OFFSET (0x08) + +#define AMBI_PARA_MEAS_RATE_1 (0x00) +#define AMBI_PARA_MEAS_RATE_2 (0x10) // DEFAULT +#define AMBI_PARA_MEAS_RATE_3 (0x20) +#define AMBI_PARA_MEAS_RATE_4 (0x30) +#define AMBI_PARA_MEAS_RATE_5 (0x40) +#define AMBI_PARA_MEAS_RATE_6 (0x50) +#define AMBI_PARA_MEAS_RATE_8 (0x60) +#define AMBI_PARA_MEAS_RATE_10 (0x70) +#define AMBI_MASK_PARA_MEAS_RATE (0x70) + +#define AMBI_PARA_CONT_CONV_ENABLE (0x80) +#define AMBI_MASK_PARA_CONT_CONV (0x80) // DEFAULT disable + +// Bits in Interrupt Control Register (x89) +#define INTERRUPT_THRES_SEL_PROX (0x00) +#define INTERRUPT_THRES_SEL_ALS (0x01) + +#define INTERRUPT_THRES_ENABLE (0x02) + +#define INTERRUPT_ALS_READY_ENABLE (0x04) + +#define INTERRUPT_PROX_READY_ENABLE (0x08) + +#define INTERRUPT_COUNT_EXCEED_1 (0x00) // DEFAULT +#define INTERRUPT_COUNT_EXCEED_2 (0x20) +#define INTERRUPT_COUNT_EXCEED_4 (0x40) +#define INTERRUPT_COUNT_EXCEED_8 (0x60) +#define INTERRUPT_COUNT_EXCEED_16 (0x80) +#define INTERRUPT_COUNT_EXCEED_32 (0xa0) +#define INTERRUPT_COUNT_EXCEED_64 (0xc0) +#define INTERRUPT_COUNT_EXCEED_128 (0xe0) +#define INTERRUPT_MASK_COUNT_EXCEED (0xe0) + +// Bits in Interrupt Status Register (x8e) +#define INTERRUPT_STATUS_THRES_HI (0x01) +#define INTERRUPT_STATUS_THRES_LO (0x02) +#define INTERRUPT_STATUS_ALS_READY (0x04) +#define INTERRUPT_STATUS_PROX_READY (0x08) +#define INTERRUPT_MASK_STATUS_THRES_HI (0x01) +#define INTERRUPT_MASK_THRES_LO (0x02) +#define INTERRUPT_MASK_ALS_READY (0x04) +#define INTERRUPT_MASK_PROX_READY (0x08) + +typedef enum { + VCNL40x0_ERROR_OK = 0, // Everything executed normally + VCNL40x0_ERROR_I2CINIT, // Unable to initialise I2C + VCNL40x0_ERROR_I2CBUSY, // I2C already in use + VCNL40x0_ERROR_LAST +} VCNL40x0Error_e; + + +class VCNL40x0 { +public: +// Creates an instance of the class. +// Connect module at I2C address addr using I2C port pins sda and scl. + + VCNL40x0 (PinName sda, PinName scl, unsigned char addr); + +// Destroys instance + + ~VCNL40x0(); + +// public functions + + VCNL40x0Error_e Init (void); + + VCNL40x0Error_e SetCommandRegister (unsigned char Command); + VCNL40x0Error_e SetCurrent (unsigned char CurrentValue); + VCNL40x0Error_e SetProximityRate (unsigned char ProximityRate); + VCNL40x0Error_e SetAmbiConfiguration (unsigned char AmbiConfiguration); + VCNL40x0Error_e SetLowThreshold (unsigned int LowThreshold); + VCNL40x0Error_e SetHighThreshold (unsigned int HighThreshold); + VCNL40x0Error_e SetInterruptControl (unsigned char InterruptControl); + VCNL40x0Error_e SetInterruptStatus (unsigned char InterruptStatus); + VCNL40x0Error_e SetModulatorTimingAdjustment (unsigned char ModulatorTimingAdjustment); + + VCNL40x0Error_e ReadID (unsigned char *ID); + VCNL40x0Error_e ReadCurrent (unsigned char *CurrentValue); + VCNL40x0Error_e ReadCommandRegister (unsigned char *Command); + VCNL40x0Error_e ReadProxiValue (unsigned int *ProxiValue); + VCNL40x0Error_e ReadAmbiValue (unsigned int *AmbiValue); + VCNL40x0Error_e ReadInterruptStatus (unsigned char *InterruptStatus); + VCNL40x0Error_e ReadInterruptControl (unsigned char *InterruptControl); + + VCNL40x0Error_e ReadProxiOnDemand (unsigned int *ProxiValue); + VCNL40x0Error_e ReadAmbiOnDemand (unsigned int *AmbiValue); + +private: + I2C _i2c; + int _addr; + char _send[3]; + char _receive[2]; + +}; + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Thu Nov 05 09:40:10 2015 +0000 @@ -0,0 +1,48 @@ +#include "mbed.h" +#include "VCNL4010.h" + +DigitalOut LED_0 (PB_6); +DigitalOut LED_1 (PA_7); +DigitalOut LED_2 (PA_6); +DigitalOut LED_3 (PA_5); + +//Virtual serial port over USB +Serial pc(USBTX, USBRX); +Serial modem(PA_9, PA_10); + +// configure VCNL4010 +VCNL40x0 VCNL40x0_Device (PB_9, PB_8, VCNL40x0_ADDRESS); // Define SDA, SCL pin and I2C address + + +int main() { + + LED_0 = 1; + LED_1 = 1; + LED_2 = 1; + LED_3 = 1; + + unsigned char ID=0; + unsigned int AmbiValue=0; + + // print information on screen + pc.printf("\n\n VCNL4010 Proximity/Ambient Light Sensor"); + pc.printf("\n Read Ambillight on demand in endless loop"); + + VCNL40x0_Device.ReadID (&ID); // Read VCNL40x0 product ID revision register + pc.printf("\n\n Product ID Revision Register: %d", ID); + + wait_ms(3000); // wait 3s (only for display) + + while(1) { + VCNL40x0_Device.ReadAmbiOnDemand (&AmbiValue); // read ambi value on demand + pc.printf("Ambient light: %5.0i cts \tIlluminance: %7.2f lx\r", AmbiValue, AmbiValue/4.0); + if(AmbiValue < 5000) LED_3 = 0; + else LED_3 = 1; + if(AmbiValue < 4000) LED_2 = 0; + else LED_2 = 1; + if(AmbiValue < 3000) LED_1 = 0; + else LED_1 = 1; + if(AmbiValue < 2000) LED_0 = 0; + else LED_0 = 1; + } +} \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Nov 05 09:40:10 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/9296ab0bfc11 \ No newline at end of file