What to do now?

Main Help Screen

It's a good idea to select "Run Compatibility Tests" to check if this device has the features to operate your Sunflower2.

If it does, go ahead and select "Scan for Sunflower2" to look for a Sunflower2. The Sunflower2 has to be under good sunlight in order that your device can find it.

If the Sunflower2 is not under good sunlight, you may have to press the button on the Sunflower2 marked "ATN" for 3s to get its attention (ATN function is disabled if your Sunflower2 is updated to Sunflower2 code version V18.41. The updated code improves connection attempts under poor sun condition).

Make sure you start with visiting Operational Overview if you have not done so.

Locking mirror into a position

Once the Sunflower2 is configured, it will try to track the sun. If for any reason you want to lock the mirror into a position, for example to minimize chance of mirror breakage during hailstorm, you may adjust to mirror to a desirable position (see Mirror Adjust). When done, select . Then move close to your Sunflower2 and select the 📡 button.
To unlock, select . Then move close to your Sunflower2 and select the 📡 button.

Scan Sunflower2 Screen

Press "Start Scanning" to scan for a Sunflower2. How long it takes to find a Sunflower2 depends on how many Bluetooth devices there are around you. If there are not many, it should not take too long to find.

If it is not finding any and you are near a Sunflower2, the Sunflower2 may not have enough sun. Press the button on the Sunflower2 marked "ATN" for 3 seconds to get its attention (ATN function is disabled if your Sunflower2 is updated to Sunflower2 code version V18.41. The updated code improves connection attempts under poor sun condition).

When it finds a new Sunflower2, the Sunflower2 serial number will be displayed along with state symbols on the right.

The following are the state symbols and their definitions:

Detected a Sunflower2. Waiting for state information.
🆕 Sunflower2 has not been configured
🆓 Sunflower2 is idle
Ⱦ Sunflower2 internal clock is off by more than 1 minute
Sunflower2 is configured
✔✔ Sunflower2 is configured and operating normally
😴 Sunflower2 is in the process of waking up
Mirror stopped
🔄 Mirror motor stuck - trying to free itself
All targets deleted - Mirror is facing the sun
Mirror is moving to a specified angle
Verifying mirror motors

Selecting the Sunflower2 will take you to the next step.

After the Sunflower2 has been configured, whatever name you gave it will show up when found in place of its serial number.

Sunflower2 Orientation Configure Screen

Change Sunflower2 Location

You are ready to program the Sunflower2 with information on

▪ Sunflower2 GPS location

▪ target direction relative to the mirror orientation

▪ mirror orientation relative to the sun

If you select Continue, you will be brought to the next step after your device successfully connects with the Sunflower2

Step 1: Measure Mirror Orientation

In this step, place your device as prescribed by the instruction. The orientation of your device on the mirror is important. It measures the orientation of the mirror and establishes a direction reference. Observe the drawing in the intstruction carefully.

If you select Continue, one of two things can happen depending on whether the current mirror orientation can be used.

▪ If usable, you will be able to proceed to next step

▪ Otherwise, you will be prompted to request mirror to move

If the mirror needs to move to change its orientation, you will have to select Change Sunflower2 Location to get back into the process.

Step 2: Acquire Target

In this step, take a picture of the target. This establishes the direction of the target in relation to the mirror orientation

Step 3: Get Sun's direction

In this step, take a picture of the shadow cast by your head. This establishes the mirror orientation relative to the sun.

Step 4: Re-measure Mirror Orientation

The relative angle among the target direction, the mirror orientation, and the sun's direction are calculated base on measurement taken from your device's gyroscope. The gyroscope may or may not be completely reliable. So by re-measuring the mirror orientation, it compares against the first measurement for deviation. So one of two things can happen depending on whether the deviation is acceptable or not.

▪ If acceptable, you will be able to proceed to Name Target

▪ Otherwise, you will be brought back to Step 1

Name Target

Give a name to your target. This establishes your first target. After you select Confirm, your device will connect with the Sunflower2 start to program it with the measurments that you have established.

Target List Screen

These are the list of targets you have defined. Next to the target names are target attributes. The following are target attribute descriptions.

This target is currently where the sunlight is being targeted
This is the target that you have locked in as the Anchor Target.

Anchor Target

You can only train the Sunflower2 using the anchor target as reference. Since the anchor target is the reference for training, it is important to remember exactly where the sun strikes the target when it is locked as the anchor target. You need to take a picture so that you can refer to it later during training.

If you deleted the anchor target, your Sunflower2 still remains trained. However when you lock in a new anchor target and start new training, your Sunflower2 old training is lost and training starts anew.

It is a good idea to add another target as an operating target instead of the anchor target. In this way, you can adjust the non-anchor target to a better position while continuing to train the Sunflower2 with the anchor target. This other target could be pointing at the same place as the anchor target if you wish.

Selected Target Screen

If this target is not currently the sunlight target, "Set Current" button will show. And selecting it makes this target the sunlight target.

If this target is currently the sunlight target, you will be able to make adjustments with the second menu item to beam the sunlight exactly onto the target if it is not already so.

What this adjustment does depends on whether the target is an anchor target or not. If it is not an anchor target, it is only this target that is being corrected. If it is an anchor target, it is the Sunflower2 that is being trained.

Mirror Adjust

This process allows you to adjust the mirror to beam the sunlight to an exact spot. It offers two modes of adjusting the mirror. Selecting the Mode button toggles between the two modes.

Left-Right-Up-Down Mode

This is the default mirror adjustment mode. At this point, the Sunflower2 has some idea of its orientation and direction. So it knows more or less what left, right, up and down means. By selecting a direction button, the Sunflower2 moves in the direction selected by the number of degrees you specified. This mode is good for coarse adjustments.

Spin-Tilt Mode

This mode directly controls the spin and tilt motors. It dictates exactly how many degrees the mirror should spin or tilt. It may not be immediately obvious to you how the reflection moves when the mirror spins or tilts. So in this mode, you have to go by trial and error. However, this mode is appropriate for fine adjustments.

Locking Targets

Where no Anchor Target exists yet, the target you are adjusting will be locked in as the Anchor Target. So if you do not want this target to be the Anchor Target, do not adjust this target yet.

Otherwise, if there exists an Anchor target, this target is a regular target and is adjusted as such.

Sunflower2 Training

After you have locked in the Anchor Target for the Sunflower2, it uses that anchor target as training reference. So every time it reflects the sunlight off the reference and you adjust it back to that reference, it is a training point. To do this process efficiently with the least amount of effort, you want to strategically collect the training points.

It is a good strategy to spread out the points at three or four different time of day, one at one other season, and another at another season. So overall, 5 to 6 well placed training points should be sufficient to fully train the Sunflower2. And it should remain trained until the Sunflower2 is physically moved to a different position or orientation.

The Sunflower2 has an inherent inaccuracy of 2 deg or so. So certain amount of drift from the target has to be expected even after it is well trained.

Selected Device Screen

This screen periodically retrieves and displays the Sunflower2 status. The "Change Sunflower2 Location" selection is selectable only when the Sunflower2 status is retrievable and the Sunlfower2 itself is found to be in a good known state.

Selecting "Change Sunflower2 Location" and agreeing to continue through its process essentially resets the Sunflower2.

You may rename your Sunflower2 by selecting "Change Name".