Use accelerometer to wake up screen (#2371)

* WIP accelerometer tinkering

* Debug logging

* RAK LIS3DH sensor

* Deconflict temperature sensor and LIS3DH

* Finishing up

* StateON

* Protobufs

* Default of none

* Formatting

src/AccelerometerThread.h

@@ -0,0 +1,67 @@
+#include "PowerFSM.h"
+#include "concurrency/OSThread.h"
+#include "configuration.h"
+#include "main.h"
+#include "power.h"
+
+#include <Adafruit_LIS3DH.h>
+#include <Adafruit_MPU6050.h>
+
+namespace concurrency
+{
+class AccelerometerThread : public concurrency::OSThread
+{
+  public:
+    AccelerometerThread(ScanI2C::DeviceType type = ScanI2C::DeviceType::NONE) : OSThread("AccelerometerThread")
+    {
+        if (accelerometer_found.port == ScanI2C::I2CPort::NO_I2C || !config.display.wake_on_tap_or_motion) {
+            disable();
+            return;
+        }
+        accleremoter_type = type;
+        LOG_DEBUG("AccelerometerThread initializing\n");
+
+        if (accleremoter_type == ScanI2C::DeviceType::MPU6050 && mpu.begin(accelerometer_found.address)) {
+            LOG_DEBUG("MPU6050 initializing\n");
+            // setup motion detection
+            mpu.setHighPassFilter(MPU6050_HIGHPASS_0_63_HZ);
+            mpu.setMotionDetectionThreshold(1);
+            mpu.setMotionDetectionDuration(20);
+            mpu.setInterruptPinLatch(true); // Keep it latched.  Will turn off when reinitialized.
+            mpu.setInterruptPinPolarity(true);
+        } else if (accleremoter_type == ScanI2C::DeviceType::LIS3DH && lis.begin(accelerometer_found.address)) {
+            LOG_DEBUG("LIS3DH initializing\n");
+            lis.setRange(LIS3DH_RANGE_2_G);
+
+            // Adjust threshhold, higher numbers are less sensitive
+            lis.setClick(1, 80);
+        }
+    }
+
+  protected:
+    int32_t runOnce() override
+    {
+        canSleep = true; // Assume we should not keep the board awake
+
+        if (accleremoter_type == ScanI2C::DeviceType::MPU6050 && mpu.getMotionInterruptStatus()) {
+            wakeScreen();
+        } else if (accleremoter_type == ScanI2C::DeviceType::LIS3DH && lis.getClick() > 0) {
+            wakeScreen();
+        }
+        return 100;
+    }
+
+  private:
+    void wakeScreen()
+    {
+        LOG_DEBUG("Tap or motion detected. Turning on screen\n");
+        if (powerFSM.getState() == &stateDARK) {
+            powerFSM.trigger(EVENT_INPUT);
+        }
+    }
+    ScanI2C::DeviceType accleremoter_type;
+    Adafruit_MPU6050 mpu;
+    Adafruit_LIS3DH lis;
+};
+
+} // namespace concurrency