Tiny Whoops are extremely widespread amongst FPV pilots for his or her compact dimension and agility, making them excellent for indoor flying and tight areas. Nonetheless, getting the most effective efficiency out of your Tiny Whoop requires fine-tuning varied settings in Betaflight, Bluejay, FPV, and your radio. On this tutorial, I’ll information you thru the optimum configurations that will help you get probably the most out of your Tiny Whoop.
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FPV System Setup
If you’re flying indoors, there’s often little have to run larger than 25mW energy in your VTX. This maximizes your flight time and reduces VTX overheating.
It’s widespread to have a 5GHz WiFi router in the home, so selecting a VTX channel that’s removed from the WiFi frequency band may improve your video high quality, e.g., Raceband channel 8. For extra recommendations on selecting FPV channels: https://oscarliang.com/fpv-channels/
For comfort, I often use two stubby antennas on my FPV Goggles, pointing at 90-degree to one another. They’re lighter and extra compact. The polarization path (RHCP or LHCP) often doesn’t matter as most Tiny Whoops use a light-weight dipole antenna, which is linearly polarized. In case you don’t know what to decide on, RHCP is a extra widespread alternative for analog FPV. See my antenna suggestions: https://oscarliang.com/best-fpv-antenna/#Antennas-for-VRX-and-FPV-Goggles
Radio Hyperlink Setup
Assuming you might be flying indoors and utilizing an ExpressLRS radio hyperlink, take into account selecting the bottom energy stage, e.g., 25mW or 10mW if obtainable. This can significantly improve your radio battery life.
Relating to packet charges, think about using 500Hz and even F1000Hz for minimal latency. For most individuals, it may be troublesome to even inform the distinction between 150Hz and 500Hz, so I wouldn’t fear an excessive amount of about packet charges. Personally, I simply use 250Hz to maintain it constant, as I exploit 250Hz on all my different quads.
Don’t neglect to use the ExpressLRS preset in keeping with your particular packet price to keep away from undesirable vibrations.
Flashing Bluejay Firmware
It’s extremely beneficial to flash Bluejay to your ESC for 2 causes:
- It permits larger PWM frequency.
- It permits bi-directional DShot, which permits RPM filters in Betaflight.
Comply with my tutorial on learn how to flash Bluejay: https://oscarliang.com/bluejay-blheli-s/
Select a PWM frequency that fits your wants. 24KHz gives higher motor efficiency, resulting in extra responsive and exact management, whereas 96KHz maximizes flight time. 48KHz gives an excellent stability between responsiveness and effectivity. I examined completely different PWM frequencies on my BetaFPV Air65, and listed below are the flight instances:
- 96KHz: 4:00
- 48KHz: 3:40
- 24KHz: 2:50
Props In vs Props Out
Props in and props out consult with the motor spin path and propeller mounting. I’ve a tutorial explaining it in additional element: https://oscarliang.com/reversed-motor-prop-rotation-quadcopter/
Props in is the default configuration in Betaflight, however props out is extra widespread in Tiny Whoops. By default, you need to begin with props out on a Tiny Whoop, because it appears to typically fly higher and has change into the usual. Nonetheless, should you expertise points with washout throughout corners and descents, the props in configuration may repair it. Don’t take my phrases for it, attempt completely different configurations to see what works finest for you.
Betaflight Configuration
Angle Mode Settings
- Angle Power: 90 (In case you really feel that is too tight, cut back this quantity).
- Angle Restrict: 60 (This controls how a lot tilt you are able to do in Angle mode earlier than it limits it, form of like charges and expo in a way. 80 is the very best I’d go right here. If it feels too twitchy, cut back it to 65 and even decrease. I desire 60 to 65 when flying indoors).
Disabling Airmode
I often disable Airmode within the Configuration tab when flying in Angle mode. This helps with crashing; the whoop doesn’t overreact and freak out, permitting simpler restoration.
In case you additionally fly in Acro mode, you possibly can assign Airmode to the identical change as Angle mode in order that whenever you deactivate Angle mode, Airmode is activated routinely.
Throttle Scaling
Within the Charges tab, I set the throttle restrict to Scale and 90%. It is because I virtually by no means use 100% throttle when flying indoors. Scaling it down will give me extra throttle decision. You possibly can even set it to 80% or decrease for extra relaxed cruising.
To find out how a lot to scale down, attempt placing throttle proportion in your OSD, document your self flying as quick as you possibly can, and watch the DVR to see the utmost throttle you sometimes use. In case you use 100% throttle, then don’t set any throttle restrict in any respect. But when the utmost throttle you employ is decrease, cutting down your throttle will present extra decision.
You aren’t dropping flight efficiency by cutting down throttle, your motors are nonetheless able to working at 100% every time it must stabilize the quad. It’s completely different from “Motor Output Restrict”, which places a cap on how briskly the motors can run and can make your whoop much less responsive.
Different Settings
- Throttle Increase: 6-10 (Really useful should you set a throttle scale of 90% or decrease; it makes your quad’s throttle extra responsive).
- VBAT Sag Compensation: 100% (Makes the quad really feel extra constant via the entire battery pack but in addition extra dangerous as you may neglect when to land).
- Motor Idle: 8% to 10% (Within the Motors Tab).
- Battery Voltage Settings: Set the Minimal Cell Voltage to three.0V and the Warning Cell Voltage to three.2V within the Energy & Battery tab. This ensures you don’t over-discharge your batteries.
- OSD Setup: Run a minimal OSD setup with solely important components like battery voltage, flight time, and warnings to keep away from distractions.
Switching Price Profiles
In case you fly in each Acro and Angle modes, you may wish to use completely different charges. You possibly can arrange completely different charges utilizing Charges Profiles, and one of the best ways to change price profiles can be utilizing the “Changes” tab. If you’re simply flying in Angle mode, you possibly can ignore this part.
For instance, should you use AUX2 (a two-position change) to change between Angle and Acro mode, when it’s within the low place 1000, it’s in Angle mode, when it’s within the excessive place 2000, it’s in Acro mode.
Within the Changes tab, allow the primary obtainable slot:
- Set “When Channel” to the change for switching between Angle and Acro mode (AUX 2 on this instance).
- Lengthen “Is In Vary” to the entire vary.
- Set “Then Apply” to “Price Profile Choice.”
- Set “Through Channel” to “AUX 2” once more.
On this instance, when in Angle mode, it can change to Price Profile 1, and when in Acro mode, it can change to Price Profile 3. Observe: It’s skipping Price Profile 2 as a result of I’m utilizing a 2-position change. In case you use a 3-position change, it can enable switching amongst Price Profile 1, 2, and three.
Conclusion
Establishing your Tiny Whoop with these configurations and ideas will considerably improve your flying expertise. Keep in mind, these are beginning factors, and also you may have to fine-tune settings based mostly in your particular {hardware} and flying fashion. Glad flying!
