diff options
| -rw-r--r-- | include/driver/ccs811.h | 20 | ||||
| -rw-r--r-- | include/driver/max44006.h | 21 | ||||
| -rw-r--r-- | include/driver/max44009.h | 19 | ||||
| -rw-r--r-- | src/driver/ccs811.cc | 29 | ||||
| -rw-r--r-- | src/driver/max44006.cc | 71 | ||||
| -rw-r--r-- | src/driver/max44009.cc | 40 |
6 files changed, 200 insertions, 0 deletions
diff --git a/include/driver/ccs811.h b/include/driver/ccs811.h new file mode 100644 index 0000000..27d7e41 --- /dev/null +++ b/include/driver/ccs811.h @@ -0,0 +1,20 @@ +#ifndef CCS811_H +#define CCS811_H + +class CCS811 { + private: + CCS811(const CCS811 ©); + unsigned char const address; + unsigned char txbuf[3]; + unsigned char rxbuf[2]; + + public: + CCS811(unsigned char const addr) : address(addr) {} + + void init(); + short check(); +}; + +extern CCS811 ccs811; + +#endif diff --git a/include/driver/max44006.h b/include/driver/max44006.h new file mode 100644 index 0000000..e357574 --- /dev/null +++ b/include/driver/max44006.h @@ -0,0 +1,21 @@ +#ifndef LM75_H +#define LM75_H + +class LM75 { + private: + LM75(const LM75 ©); + unsigned char const address; + unsigned char txbuf[3]; + unsigned char rxbuf[2]; + + public: + LM75(unsigned char const addr) : address(addr) {} + + float getTemp(); + void setOS(unsigned char os); + void setHyst(unsigned char hyst); +}; + +extern LM75 lm75; + +#endif diff --git a/include/driver/max44009.h b/include/driver/max44009.h new file mode 100644 index 0000000..6bedd3c --- /dev/null +++ b/include/driver/max44009.h @@ -0,0 +1,19 @@ +#ifndef MAX44009_H +#define MAX44009_H + +class MAX44009 { + private: + MAX44009(const MAX44009 ©); + unsigned char const address; + unsigned char txbuf[2]; + unsigned char rxbuf[2]; + + public: + MAX44009(unsigned char const addr) : address(addr) {} + + float getLux(); +}; + +extern MAX44009 max44009; + +#endif diff --git a/src/driver/ccs811.cc b/src/driver/ccs811.cc new file mode 100644 index 0000000..a2b3940 --- /dev/null +++ b/src/driver/ccs811.cc @@ -0,0 +1,29 @@ +#include "driver/ccs811.h" +#include "driver/gpio.h" +#if defined(MULTIPASS_ARCH_HAS_I2C) && !defined(DRIVER_SOFTI2C) +#include "driver/i2c.h" +#else +#include "driver/soft_i2c.h" +#endif + +#ifdef MULTIPASS_ARCH_esp8266 +#define nWAKE GPIO::d5 +#endif + +void CCS811::init() +{ + gpio.output(nWAKE); + gpio.write(nWAKE, 1); +} + +short CCS811::check() +{ + gpio.write(nWAKE, 0); + txbuf[0] = 0x20; + rxbuf[0] = 0; + i2c.xmit(address, 1, txbuf, 1, rxbuf); + gpio.write(nWAKE, 1); + return rxbuf[0]; +} + +CCS811 ccs811(0x5a); diff --git a/src/driver/max44006.cc b/src/driver/max44006.cc new file mode 100644 index 0000000..a61e7df --- /dev/null +++ b/src/driver/max44006.cc @@ -0,0 +1,71 @@ +#include "driver/max44006.h" +#include "arch.h" +#if defined(MULTIPASS_ARCH_HAS_I2C) && !defined(DRIVER_SOFTI2C) +#include "driver/i2c.h" +#else +#include "driver/soft_i2c.h" +#endif + +signed char MAX44006::setup() +{ + txbuf[0] = 0; + txbuf[1] = 0; + i2c.xmit(2, txbuf, 0, rxbuf); + + arch.delay_us(10); + + txbuf[0] = 0x01; + txbuf[1] = 0x20; + i2c.xmit(2, txbuf, 0, rxbuf); + + arch.delay_us(10); + + txbuf[0] = 0x02; + txbuf[1] = 0x02; + i2c.xmit(2, txbuf, 0, rxbuf); + + return 0; +} + +void MAX44006::wakeup() +{ + txbuf[0] = 0; + txbuf[1] = 0; + i2c.xmit(2, txbuf, 0, rxbuf); +} + +void MAX44006::sleep() +{ + txbuf[0] = 0x00; + txbuf[1] = 0x08; + + i2c.xmit(2, txbuf, 0, rxbuf); +} + +float LM75::getTemp() +{ + txbuf[0] = 0; + rxbuf[0] = 0; + rxbuf[1] = 0; + i2c.xmit(address, 1, txbuf, 2, rxbuf); + + return rxbuf[0] + (rxbuf[1] / 256.0); +} + +void LM75::setOS(unsigned char os) +{ + txbuf[0] = 0x03; + txbuf[1] = os; + txbuf[2] = 0; + i2c.xmit(address, 3, txbuf, 0, rxbuf); +} + +void LM75::setHyst(unsigned char hyst) +{ + txbuf[0] = 0x02; + txbuf[1] = hyst; + txbuf[2] = 0; + i2c.xmit(address, 3, txbuf, 0, rxbuf); +} + +MAX44006 max44006(0x45); diff --git a/src/driver/max44009.cc b/src/driver/max44009.cc new file mode 100644 index 0000000..3981e79 --- /dev/null +++ b/src/driver/max44009.cc @@ -0,0 +1,40 @@ +#include "driver/max44009.h" +#if defined(MULTIPASS_ARCH_HAS_I2C) && !defined(DRIVER_SOFTI2C) +#include "driver/i2c.h" +#else +#include "driver/soft_i2c.h" +#endif + +float MAX44009::getLux() +{ + unsigned char luxHigh; + unsigned char luxLow; + unsigned int mantissa, exponent; + + txbuf[0] = 0x03; + txbuf[1] = 0x04; + + i2c.xmit(address, 2, txbuf, 2, rxbuf); + + luxHigh = rxbuf[0]; + luxLow = rxbuf[1]; + + /* + * The lowest 4 bit of luxLow are the lowest 4 bit of the mantissa. + * The lowest 4 bit of luxHigh are the highest 4 bit of the mantissa. + */ + mantissa = (luxLow & 0x0F) + ((luxHigh & 0x0F) << 4); + + /* + * The highest 4 bit of luxHigh are the 4 bit exponent + */ + exponent = (luxHigh & 0xF0) >> 4; + + /* + * Cast base and mantissa to float to avoid calculation errors + * because of 16bit integer overflows. + */ + return (float)(1 << exponent) * (float)mantissa * 0.045; +} + +MAX44009 max44009(0x4a); |