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Bristol Bot Builders

BBB Beetleweight Dual Brushed ESC

BBB Beetleweight Dual Brushed ESC

$42.70
$42.70
Sale Sold out

BBB edition beetleweight dual brushed ESC  All the specs you need in a brushed ESC – center braking, safe start, failsafing, current limiting, higher voltage support, built in BEC and of course the signature startup tone! This ESC will happily run four brushed 22mm or 25mm motors! 

  • 4S lipo support – can happily run 4 x 25mm motors at 3S, 6 x 22mm motors at 4S
  • Small and lightweight at 10g – can save weight by shortening wires
  • Current limiting – high current motors (eg – nerfs) shouldn’t blow up the ESC
  • Center braking –  brakes motors when the sticks are centered for better control
  • Failsafing – no unexpected movement when transmitter is off / loses signal
  • Safe start –  stick must be centered to arm (short beep/flash until stick is centered)
  • Built in mixing – for easy driving,  can be disabled, more info below.
  • Built in BEC – enough current to power a receiver, use external BEC for servos etc
  • Adaptive current limiting: 2-3 secs of 10A, 10 secs of ramp down to 4A
  • Short circuit protection at motor output (see LED indicators below)

Do not use two BECs at a time – more info on this below.

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Specs

Size: 33x21x3mm (main pcb)

Weight : ~10g (can save weight shortening wires)

Input Voltage: 2-4S Lipo recommended (6-16.8V)
up to 6S (not recommended)

Motor Output: 10A Continuous (Current limited) x 2
13A Peak x 2

Mixing: On board mixing of channels (can be disabled)

Center Braking: Built in. Motors stopped by zero signal.

BEC: 5V 0.15A

More info about the ESC:

LED indicator light & beeps:
Start up beep = ESC has just powered on – it is receiving power and is connected to motor(s).
Solid LED = Powered on. Receiver ready, ESC is armed.
Flash & beep with short gap = Powered on. Throttle isn’t centred.
Flash & beep with long gap = Powered on. No receiver signal.
Rapid LED flickering on start up = Short circuit detected, disconnect your link immediately and check your wiring.

Driving & Mixing:
By default mixing is enabled on this ESC – the servo connectors drive the following:
– CH1 is steering (turning left/right)
– CH2 is drive (forwards/backwards)
These match nicely with the defaults of the  FS-i6 transmitter + flysky receiver (CH1: AIL, CH2: ELE)
If your turning or driving is backwards on your transmitter, you’ll want to reverse the appropriate channel above.
If you want to disable mixing, there’s solder pads labelled on the back of the ESC – you want to create a solder bridge between them (and then re-heatshrink the ESC) Each servo connector will control one drive side and you’ll need to set up your own mixing – see our guide.

Firmware Updates:

  • 17/5/23: BN2 on PCB – Adaptive currrent limiting – 2-3 secs of 10A, 10 secs of ramp down to 4A
  • 18/7/23: BN2 + 2 written on PCB – Failsafing bug fix (after multiple Receiver disconnects).
    Short circuit protection at motor output (see LED indicators above).
  • 6/1/24: BN2 + 3 written on PCB – Improved resistance to motor noise for second channel. More ways to fix for noisy motors below.

Do not use more than one BEC at a time  – see both diagrams below:
This dual ESC comes with a built in BEC perfect for powering your receiver.
If you’re powering a servo or other higher current components, use an external BEC – unplug the ESC’s red servo wire, we recommend cutting this wire (or taping over the metal connector) to prevent risk of shorting.

Please note:  We don’t recommend running 25mm motors above 3S, however our 22mm Planetary Gearmotors will run 4S lipos. Typical Beetle Wiring Diagram for two or four wheel drive:

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