About the article


Exchanging a standard motor in an RC model for a brushless equivalent involves some alterations. But the circuit described makes the task simply child’s play.
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.

Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

Component list

R1 = 330?
R2 = 1 k?
R3 = 47k?

C1 = 100nF

D1 = LED, 3mm, red
IC1 = ATtiny45-20PU, programmed, Elektor Store # 120527-41

8-pin IC socket
K1,K2 = 2-pin pinheader, 0.1’’ pitch
K3 = 2-pin pinheader, 0.1’’ pitch
PCB # 120527-1
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