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PIC BASED SPEED CONTROLLER




Description

This is a PIC16F870 based speed controller for electrical powered
radio controlled vehicles. The circuit is connected to a
standard R/C reciever and is placed between the battery
and the motor.

It will read the length of the pulses from
the reciever and output a pulse with modulated signal to
a MOSFET transistor that will feed the motor with current
from the batteries.

The circuit also include a break that
will short circuit the motor and forces it stop.

The PIC is programmed with the five ICSP programming
connectors on the PCB. I use a JDM PIC programmer for
programming the PIC.

Send any comments to: johanstrombom@hotmail.com



How to use:

Connect the battery to BAT+ and BAT-
Connect the motor to MOT+ and MOT-
Connect the reciever to the three reciever connectors
on the PCB



Files:

1.asm PIC Source code
1.hex assembled PIC code
1.brd PCB Layout, EAGLE
1.pl Part list
1.jpg Picture of the PCB layout (jpg)



Part-list

Oscillator 4Mhz Ceramic resonator, 3 leads
IC1 PIC16F870
IC2 7805 +5V Regulator
R1-R4, R6 10k resistors
R5 30k resistor
R7-R9 0 ohm
T1 MTB75N05HD MOSFET Transistor
T2 BUZ10 MOSFET Transistor
T3-T5 BC338 NPN Transistors

This board is available from Olimex

Questions:

See also:


file: /Techref/microchip/io/dev/motor/esc-js.htm, 2KB, , updated: 2005/11/11 11:25, local time: 2014/10/22 08:51, owner: JVS-JVS-C22,
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