From c1a41b3ce91f2b839faf8559822c1478c12d69d8 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <daniel.friesel@uos.de>
Date: Fri, 24 May 2019 09:10:38 +0200
Subject: add ccs811, max44006, max44009 drivers. Not all are working.

---
 src/driver/ccs811.cc | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 src/driver/ccs811.cc

(limited to 'src/driver/ccs811.cc')

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);
-- 
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