The loco with tender was originally painted in a"Team Peanuts" set and had only a slight damage to the loco roof but the tender under carriage was badly damaged but the other loco was just for parts but the tender chassis was in good condition.
I repainted it a blue using spray pack cans from a
$2 shop, it is used to pull some Bachmann Jackson Sharp coaches that I have resprayed again using the spray pack cans to be attuned more to Australian railway colours.
Passenger Coaches
Passenger Coaches
It has been converted to Battery Power Radio Control using my standard HobbyKing model aircraft components control method.
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| Peanuts Loco Original Livery |
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| Peanuts Tender Original Livery |
Radio Control & Electronic
Components;
-
HobbyKing 2.4Ghz 4Ch Tx & Rx Version2 Mode 1, converted into Mode 3 i.e. throttle and direction all on the Left hand stick for Vic and the Right hand stick used for Shorty.
-
HobbyKing 2.4Ghz Receiver T6A-V2, compatible only with HobbyKing T4A & T6AVersion2 transmitters, (a 4 channel Rx comes with the TX/RX combo but any extra RX’s have to be 6 channel, because that is all that is offered by HobbyKing)
-
Turnigy TGY-20A Brushed Electronic Speed Controller (ESC)
-
HXT 9g/1.6Kg/.12 Micro Servo operating a Double Pole Double Throw (DPDT) toggle switch for controlling direction.
-
Ten (10), 2700mAH NiMH, 1.2V tagged AA cells, in a holder, are used to give a nominal 12V Battery.
-
A PICAXE based sound card from the “Sandstone & Termite” tutorials (program listing below).
Sandstone & Termite Tutorials
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LED front & rear lights are across the motor input.
Component Locations;
Loco;
-
The battery, located inside the boiler.
-
A DPDT Centre Off switch, mounted on the boiler back head, used for power ON/OFF/Charge. When gold stripe on switch lines up with piping the loco is on, loco sound is a hiss when stationary.
-
Charging studs under the loco, for connection to charger by alligator clips, switched in when Charge position is selected.
Tender;
-
All Radio Control equipment (ESC, Servo with direction switch and Receiver).
-
The sound card and speaker.
-
A 7805 regulator board to supply +5V for the PICAXE on the sound card.
Battery to the components in the
tender and motor control from the tender is via a plug on a lead from
the tender and a socket mounted on the loco.
Sound Card Program Listing
'CHUFFshaping.bas
'example
of the steam sound generator WITH VOLUME CONTROL and SHAPING
'GH 9/4/14
'100
bytes
'****
My NOTES*****
'*****Installed
into Peanuts August 2015*****
'speedconstant
increased to give better sound at full throttle
'offVol
altered to lower volume when stopped
'a
cyclic noise in the background behind hiss is heard when stopped
'possible
amplifier overload. Gerg said its the PICAXE being picked up by the
amp.
'a
voltage on pin1 represents the speed of the loco.
'a
'white noise' chuff sound is produced on pin0 and pin2, which must be
amplified externally.
'suitable
for 08M and 08M2 at 4 MHz
'pin0
is sound output
'pin1
is speed voltage input
'0V=stopped,
+5V=max speed
'if
speed volts are inverted ie 5V=stopped and 0V=max speed,then invoke
line INVspd:
'pin2
is PWM output voltage to control volume and shape the chuff
'define
variables
'w0=b0,b1
not used
SYMBOL
speed=w1
'will
be 0-maxspeedcounts in prog after reading in and processing
SYMBOL
chufftime=b4
'length
of chuff in 12 ms periods (use in SOUND command)
'=b5
SYMBOL
offtime=w3
'in
ms. need a word as can be >255 at slow speed
SYMBOL
oldspeed1=b10
SYMBOL
oldspeed2=b11
SYMBOL
PWMvolume=w6
'0=max
volume, 255 =min volume
'has
to be a word, but using 15kHz PWM, max value is 255
'define
constants
SYMBOL
maxspeedcounts=100
'max
speed will be represented as this in prog.
SYMBOL
stoppedcounts=5
'define
less than this as 'stopped'= about 5% ofmaxspeedcounts
SYMBOL
maxspeedIN=225 'changed from 255 **see notes at end to calc this
value**
SYMBOL
speedconstant=6500 'CHANGED from 3000
'adjust
for 4 chuffs per wheel revolution
'depends
on maxspeedcounts too.
'determine
these by experiment.....
SYMBOL
loudVol=150 'Changed from 150
'chuff
volume when accelerating
SYMBOL
offVol=220 'CHANGED from 250
'hiss
volume when stopped and between chuffs
SYMBOL
midVol=210 'CHANGED from 210
'chuff
volume when slowing
'---------------------------------------------------------------
PAUSE
600
'to
charge volume control cap to stop loud chuff at start
start:
oldspeed2=oldspeed1
oldspeed1=speed
READADC10
1, speed
'now
adjust for actual input voltage and normalise to a specified maximum
(maxspeedcounts)
speed=speed/4*maxspeedcounts/maxspeedIN
MAX maxspeedcounts
INVspd:
speed=maxspeedcounts-speed 'only use if speed voltage is
inverted
'*now
speed is always represented by 0 when stopped and maxspeedcounts at
max input voltage*
if
speed<stoppedcounts then stopped
L20:
if
OLDspeed1=0 and speed>stoppedcounts then loud
L35:
if
speed>=OLDspeed1 AND OLDspeed1>OLDspeed2 then loud
L40:
if
speed<OLDspeed1 AND OLDspeed1<OLDspeed2 then soft
'otherwise
just leave as it was
chuff:
offtime=speedconstant/speed
'(in ms) and
chufftime=offtime/12
'in
12ms counts
offtime=offtime/12
'needs
to be in 12ms counts now.
'start
chuff shape charging capacitor
PWMOUT
2,63, PWMvolume
'at
15.7kHz, 255=min vol, 0=max vol
SOUND
0, (255, chufftime)
'start
hiss sound
PWMOUT
2,63,offvol
'start
to decay chuff
SOUND
0, (255, offtime)
goto
start
stopped:
speed=0
oldspeed1=0
PWMOUT
2,63,offvol
'soft
volume
sound
0, (255, 100)
'3/4
sec of hiss
goto
start
loud:
PWMvolume=loudVol
goto
chuff
soft:
PWMvolume=midVol
goto
chuff
'++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
'NOTES:
'the
max volts applied to pin1 for the speed MUST NOT EXCEED the picaxe
supply voltage.
'Assuming
that is 5V, then a voltage divider on pin1 must reduce the motor
volts to
'less
than or equal to 5V at the MAXIMUM SUPPLY VOLTAGE !
'It
would be prudent to reduce the voltage to a bit less than 5V
'if
max volts on pin1 are less than picaxe volts (5V) then you must
determine the value
'for
maxspeedIN as follows:
'using
a multimeter measure the picaxe supply volts (Vp) and
'the
voltage on pin1 with max supply voltage (Vm1). Then
'maxspeedIN=
Vm1/Vp*256. (round the result UP, and must max of 256.)
'example,
you measure Vp=4.28V and Vm1=2.65V, then enter SYMBOL maxspeedIN=159
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| PICAXE Sound Card |
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| Tender Layout |
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