TBS Tiny LEDs Realpit FPV VTX Power Switch
£5.89 Inc. VAT
An electronic power switch controlled via UART – can be used to add a “Pitmode” to any video transmitter.
In stock|Next shipping: 16/03/2026
Here’s one of those clever little products that you wouldn’t be without once you’ve used one. It’s essentially a switch that you can control from your flight controller. The obvious application is to use it to turn on/off power to your racing drone’s FPV video transmitter. VTXs work most efficiently when there is airflow keeping them cool, so the Realpit lets you turn the VTX off when you aren’t moving to save it from burning up. Equally if you enjoy LOS flying you can use the Realpit Switch to turn off your VTX to save power. The switch can also be used to control other accessires, anything up to 1A so another use for it would be to control some LEDs.
The switch is easy to install, all you need is a spare UART.
Please note that the switch does not regulate the output voltage so that the voltage supplied to pin “Batt+” will be the same as outputted at pin “VTX+”. If your VTX requires a 5V input, make sure the input voltage is 5v.
FEATURES
- Plug in your VTx at any time with 0 power start-up
- Turn off your VTx on the line to avoid heat buildup
- Fast Team Race Pit stops (Sub second transitions possible)
- Compatible with all major VTxs
- Turn off VTx during races to test hover builds without interfering with other pilots in the air.
- Turn off VTx after Crash for clean video for other racers.
- Solo Endurance Races, 3 quads ready on the line. Practice for more than 1 pack without taking off goggles. (Instructions on how to setup on OpenTX / Spektrum Coming soon)
- LED Indicator light on board. (Light On Power On)
- Can be used on any pad on Flight Controller.
- Does not need a full UART.
- I.E.: SmartAudio/Tramp on TX and RX for RealPit PinIO
- Up to 4 RealPits per quad. This opens the possibility for LEDs, and VTX, and any other device you can imagine.
- Toggle LED Power or any other devices under 1 amp draw.
CURRENTLY SUPPORTED SOFTWARE
- Betaflight (PinIO 3.3.x or Greater)
- Butterflight (PinIO)
- FlightOne 1.2.x + (VTXPRWTOGGLE) Notes: FlightOne Does not support ZERO power on. VTX will blip for a micro second prior to turning back off.
BetaFlight Settings:
In CLI:
Type RESOURCE
Locate UART TX/RX pad resource ID you are using. We wired to RX4 in this demo. RX4 is A01 Note the name of resource and ID.
Next we will clear that pad from its assigned resource.
Next we need to assign the Resource ID to the Custom Mode switch. Using the Resource ID from above. “A01”
resource PINIO 2 [resource=I.E=A04]
resource PINIO 3 [resource=I.E=A05]
resource PINIO 4 [resource=I.E=A06]
Type SAVE in CLI and then press enter. Your FC will reboot after applying changes.
Now go to Modes and Assign an AUX channel to the USER1 mode. Just like an arm or turtle mode switch. Click SAVE.
Now flip the switch and test. A RED LED will be lit on RealPit if your are providing power.
- Operating Voltage: 5V – 28V (HV-6s) 1Amp Switch
- Dimensions: 10 x 12.5 x 2.5 mm
- Weight: 0.5 Grams w/ Heatshrink
Included:
- 1x Realpit
- 1x 1/2″ Heat shrink piece
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TBS is the brand behind Crossfire, the famed long Range RC system. They are also experts on FPV, making some of the best quality analog video transmitters and antennas out there.
TBS has a loyal following and for good reason. Their customer service is second to none. We are big fans of anything TBS!
Best Sellers: Tango 2, Crossfire Nano, Fusion VRX, Triumph Pro, M8 GPS, Unify Pro32, Solder.
SHIPPING & DELIVERY
We are based in the UK and ship to most destinations worldwide.
We dispatch orders during the times shown on our Dispatch Schedule. Orders placed before the daily dispatch cutoff will ship the same day (subject to stock availability). Orders placed after the cutoff will ship on the next scheduled dispatch day.
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Next Dispatch: Today
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Shipping to the UK
- Order before the daily dispatch cutoff for same day dispatch.
- FREE delivery available on qualifying orders over £99 (under 1kg).
For small, low-value orders, Royal Mail First Class is our most economical option. Royal Mail Tracked 24 is the most popular choice, offering full tracking and flexible delivery options. For guaranteed next working day delivery, we recommend Royal Mail Special Delivery.
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International Postage
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Smaller, lower-value orders may be sent via Airmail or tracked postal services. Economy road and express air courier options are available depending on destination. For faster delivery, we recommend express air courier services such as DHL Express, which typically deliver within 1–2 working days across Europe and a few working days for most other destinations.
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