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BMK Servo/ESC e-Timer

Regular price £9.90

Servo e-Timer is an essential servo/ESC controller timer for free flight models or rubber to the electric conversation.
- The Servo version changes the servo position when the countdown is completed.
- The ESC version(RED DOT for the identification) starts the motor when the button is released then stops at the end.
Both versions are configurable between 1-250 seconds.

BMK Servo e-Timer
BMK ESC e-Timer 

Servo Timer Wiring

ESC Timer Wiring

Package Content:

  • Timer Circuit Board
  • Straight and Right-handed pin headers


How To Set Timer Duration?

  • Press and hold the button before plugging the battery.
  • Plug the battery when holding the button
  • The LED will turn solid red.
  • Release the button and the LED will be turned off.
  • Press and hold the button and count the LED blinks.
  • Each Blink adds 1 second to the timer. For example, 30 flashes, for 30 seconds.
  • Release the button when you rich the required timer duration.
  • The LED will fast flash 5 times when saving the timer setting.
  • Then will return to normal mode. Now you can remove the battery or use your timer.

How To Use BMK e-Timer?

  • Plug the battery
  • If the battery voltage is above 3.7v, the LED will flash every 2 seconds.
  • If the battery voltage is below 3.7v, the LED will flash twice every 2 seconds. You must recharge the battery.
  • Press and hold the button for at least 2 seconds to arm the timer before launch. When armed the LED will solid red.
  • Release the button when launching, the timer countdown will start the LED will flash fast.
  • When the countdown is complete, the timer will turn off the motor or change the servo position.
  • Click the button to cancel If you have accidentally released the button or your model has landed before the countdown is complete.


Maximum Timer Duration : 250 seconds (4 minutes 10 seconds)
Timer Steps : 1 second
Timer Tolerance : +-1% typical
Timer Activation Method : Hold the onboard button for at least 2 seconds, the timer will start when the button is released.
Timer Cancel Method : Click the onboard button
Operation Voltage : 3.0 - 6.0v (compatible with 1S LiPo battery / ESC 5v outputs)
Power Consumption : 0.6mA
Low Battery Warning : <3.7v (double flashes @ idle mode)
Dimensions : 15mm x 11mm x 5mm
Weight :1.2g