Please join my Facebook group for updates and your questions. https://www.facebook.com/groups/bmkfreeflight



BMK Motor e-Timer - Micro JST version

Regular price £9.90

Micro JST 1.25mm version of our Motor e-Timer for a solder-free installation.

This compact timer is an ideal motor controller for small electric flight models or for converting rubber-powered models to electric. It supports 1S brushed motors and can deliver up to 5A of current.

The timer duration is configurable between 10 and 2500 seconds, offering flexibility for different flight profiles.

⚠️ Note: Timers sold before summer 2023 were configured with 1-second increments. All current versions use 10-second intervals.

📄 Download Manual

BMK Motor Timer Manual

▶️ Demo Video

The ultra-low power electronics can remain in idle mode for up to 42 days on a 100mAh battery—ideal for long-duration field sessions. It's safe to leave the battery connected throughout the flying day.


BMK Motor Timer Wiring


⚙️ Features

  • Weight: 1.2g
  • Dimensions: 23mm × 11mm × 5mm
  • Maximum Timer Duration: 2500 seconds (~41 minutes)
  • Timer Steps: 10 seconds
  • Timer Tolerance: ±1% typical
  • Timer Activation: Hold the onboard button for 2 seconds, then release to start
  • Timer Cancel: Click the onboard button
  • Operating Voltage: 3.0 – 5.0V (1S LiPo compatible)
  • Power Consumption: 0.06mA (idle), 0.6mA (countdown), 1000mA (burning, 2s)
  • Maximum Output Current: 5A continuous
  • Low Battery Warning: <3.7V (double LED flash in idle mode)