V1.5Instructions manual for Converter I2C → PWM

Features:

• The converter I2C → PWM converts signal to connect standard ESC on a Flight Controller Mikrokopter. It is compatible with following versions: MKFC1.3, MKFC2.0, MKFC2.1, FTFC1.35

• It is available in 4-6 or 4-6-8 channels version• Optimized for fast ESC working with 400 Hz PWM such as Turnigy Plush, TowerPro Mag8

(reflashed)• an ESC failing does not impact other ESC *1 *2• smooth motor handling (default),• available PPM frequencies: 400 Hz (Fast PPM), 200 Hz, 50 Hz (standard servos)• with external crystal for best temperature stability and signal accuracy• power input: 5~7v

*1: except if ESC 1 power the converter*2: in any cases if the converter is powered with +/-

Header setup:

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Setup:

The converter must be configured with solder bridges as shown on picture below with black lines. Possible settings:

• channels number: 4, 6 or 8 channels (depending on version)• PWM signal frequency: 50, 200 or 400 Hz• motor smooth handling: on/off *2

*2 : motor smooth handling is best suited to ESC with non linear power curve*1: Turn it off in case of light oscillations

ESC:

ESC should be setup in advance to get best results, especially:

• throttle calibration • disable brake

All ESC do not support Fast PPM (400Hz), please check their compatibility before use. In addition, some ESC are not usable on a multicopter because their response time is not quick enough and linar. Before use, check that the ESC can be used for that purpose.

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MK-FC:

The Flight control board of the Mikrokopter must be configured:

• from a PC, launch mk-tools and set motors in the mixer table accordingly to the converter configuration

• increase « min throttle » to about 30, • once configured, restart the FC and check that all ESCs configured by the converter are

recognized by the FC, and that no errors exist about ESC

WARNING: Make sure that the same number of motors is configured on the converter and in the FC, otherwise some motors could start during startup.

Always remove propellers before doing any setup

Wiring:

• ESC are connected in the order 1 to 8• an ESC can be connected or not, the number of ESC seen by the FC depends only on the converter

configuration• converter can be powered in two ways:

• by ESC 1 with BEC, • by +/- 5v with « + » of ESC1 unplugged

• Connect signals I2C C&D to the Flight electronic: C--C, D—D.

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Frequency:

The signal generated on channels can be set on three frequencies: 50 Hz, 200 Hz, 400 Hz (Fast PPM). Recommended value for the use on a Mikrokopter is 400 Hz (default). For a standard servo, value is 50Hz.

LED:• At power up, LED is on• blink continuously as soon as converter receives I2C signal.

Notes:

Given the PWM(PPM) signal handling, there is no meaningfull information returned from the controller back to the FC. Informations such as current consumption is not available.

Warranty: This product is warrantied against any manufacturing default during 6 month after purchasing date. The warantee is limited to the replacement of the failed part. To the exception of this warranty, the selling or handling of this product is made without any warranty, condition or any other obligation, even if the default or loss is due to a bad or neglecting use or any other fault. Any damage resulting from the use, accident, or normal usure, or bad connection or wire, is not covered by this warranty or any other warranty. Flyboard does not assume any responsibility in case of accident, body damage, death, or loss, or any other request in relation with or being the result of the use of this product.. Flyboard would not in any circumstance assume reponsability of collateral damages or indirect in relation with the use of this product, or any part of it.

This Product is not for children below 14 years old, and require sufficient electronic skills to operate. This product is dedicated to RC models, and is not suitable for any other usage including professional usage.

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