We’re very excited to launch the very tiny version 4 of our totally custom beetleweight brushed ESCs! Version 4 is 50% smaller than our v3, and comes with all the familiar features as well as some exciting new capabilities: user-adjustable current limiting and high voltage lipo support (up to 8S with anti-spark switch) – the v4 ESC can double your robot’s performance by safely over-volting your brushed motors! They’re also a great option for overvolting brushed weapons such as 37mm motors for lifters/axes/grabbers. ESC settings can be easily adjusted using our ESC programmer (or an arduino) if you wish to configure down the line, but v4s are available in two pre-programmed variants: 8A (full current): the standard use case, like v3 are suitable for controlling two high power motors at typical voltages (3-4S) – they have been ran in battle on 4S in 4WD (Two 22mm motors per ESC at 4S in Abracagrabra at Brawl ’25) 3.5A (for overvolting): suitable for overvolting one BBB 22mm motor at 6S or 8S. The ESC set to 3.5A limit has been stress tested and works well on 6S & 8S (with anti-spark) with one BBB 22mm motor v2 without damaging it. New for v4: High voltage Lipo support (8S with antispark switch / link – 6S with regular switch / link) Configurable current limiting (set via BBB ESC programmer / arduino bridge or ESC available in two pre-programmed levels) Enhanced reliability through smart over-temperature protection New smaller size, at just 19x11mm the v4 ESC is 50% smaller than our v3! (see second image) Extra BEC protection – so multiple BECs can be connected to the receiver at once Improved noise immunity v3 features included: Center braking – brakes motors when the sticks are centred for better control Failsafing – no unexpected movement when transmitter is off / loses signal Safe Start – stick must be centred to arm (short beep/flash until stick is centred) Built-in BEC – enough current to power a receiver, use external BEC for servos etc Limit switch support – useful for certain weapon types More about this ESC (example bot, beeps, lights, wiring, configuring, end stops, overvolting) below.
