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-rw-r--r--src/app/i2cdetect/main.cc13
-rw-r--r--src/driver/hdc1080.cc51
2 files changed, 64 insertions, 0 deletions
diff --git a/src/app/i2cdetect/main.cc b/src/app/i2cdetect/main.cc
index acf5ef1..e74ce5b 100644
--- a/src/app/i2cdetect/main.cc
+++ b/src/app/i2cdetect/main.cc
@@ -25,6 +25,9 @@
#ifdef DRIVER_MAX44009
#include "driver/max44009.h"
#endif
+#ifdef DRIVER_HDC1080
+#include "driver/hdc1080.h"
+#endif
#ifdef DRIVER_MMSIMPLE
#include "driver/mmsimple.h"
#endif
@@ -81,6 +84,10 @@ void loop(void)
#ifdef DRIVER_CCS811
kout << "CCS811 status is " << ccs811.check() << endl;
#endif
+#ifdef DRIVER_HDC1080
+ kout << "HDC1080 temperature " << hdc1080.getTemp() << " degC" << endl;
+ kout << "HDC1080 humidity " << hdc1080.getRH() << " %H" << endl;
+#endif
#ifdef DRIVER_MAX44009
kout.printf_float(max44009.getLux());
kout << endl;
@@ -118,6 +125,12 @@ int main(void)
#ifdef DRIVER_CCS811
ccs811.init();
#endif
+#ifdef DRIVER_HDC1080
+ hdc1080.init();
+ if (hdc1080.getManufacturerID() != 0x5449) {
+ kout << "[!] invalid HDC1080 manufacturer ID: " << hex << hdc1080.getManufacturerID() << endl;
+ }
+#endif
for (unsigned char i = 0; i < sizeof(i2c_status)/sizeof(unsigned int); i++) {
i2c_status[i] = 0;
diff --git a/src/driver/hdc1080.cc b/src/driver/hdc1080.cc
new file mode 100644
index 0000000..8da2ba7
--- /dev/null
+++ b/src/driver/hdc1080.cc
@@ -0,0 +1,51 @@
+#include "driver/hdc1080.h"
+#include "arch.h"
+#if defined(MULTIPASS_ARCH_HAS_I2C) && !defined(DRIVER_SOFTI2C)
+#include "driver/i2c.h"
+#else
+#include "driver/soft_i2c.h"
+#endif
+
+float HDC1080::getTemp()
+{
+ txbuf[0] = 0x00;
+
+ i2c.xmit(address, 1, txbuf, 0, rxbuf);
+
+ arch.delay_ms(10);
+
+ i2c.xmit(address, 0, txbuf, 2, rxbuf);
+
+ return (((unsigned int)rxbuf[0] << 8) | rxbuf[1]) * .00251770019531250000 - 40.;
+}
+
+float HDC1080::getRH()
+{
+ txbuf[0] = 0x01;
+
+ i2c.xmit(address, 1, txbuf, 0, rxbuf);
+
+ arch.delay_ms(10);
+
+ i2c.xmit(address, 0, txbuf, 2, rxbuf);
+
+ return (((unsigned int)rxbuf[0] << 8) | rxbuf[1]) * .00152587890625000000;
+}
+
+unsigned int HDC1080::getManufacturerID()
+{
+ txbuf[0] = 0xfe;
+ i2c.xmit(address, 1, txbuf, 2, rxbuf);
+ return (unsigned int)rxbuf[0] << 8 | rxbuf[1];
+}
+
+void HDC1080::init()
+{
+ txbuf[0] = 0x02;
+ txbuf[1] = 0x08;
+ txbuf[2] = 0x00;
+ i2c.xmit(address, 3, txbuf, 0, rxbuf);
+ arch.delay_ms(15);
+}
+
+HDC1080 hdc1080;