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Second level
Third level
Fourth level
Fifth level
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Set up on table at start:
Mars light, light house & Morse code on foam – should run from one
battery or power supply
Programming (batch files, macros, rules)
Pass around PICAXE chips – now or
later
Pass around PICAXE chips
Pass around a few chips
About 7 minutes to here - Pass around a
few chips
Show small flashing crossing demo unit
1:38 – 10 min to here
2:15
Show small flashing crossing demo unit
1:38 – 10 min to here
2:15
Pass around box of parts – 12 items
– cost $10 max –less if you have a well stocked junk box
NO DIRECT connection to 9 volts – 3 or 4 AA’s ONLY!
Show cables (mouse & DB-9)
PHANDERSON.COM has solderless development kit for around $20.00 (+/- depending
on cable / psupply)
Show & pass around programming cable – can
also be made from DB9 (from Hosfelt) and old computer wires – if
Internet available go to PICAXE.com and/or PHAnderson.com
Detailed review of schematic – note
pin 6 is “out1” and pin 5 is “out2” – note also
that the 22k & 10K to ground are necessary on any board, programmable or
not!
Reinforce using 5 volts or less – NOT 9 VOLT BATTERY!
Show above on WebCam?
(PA # 1)Pass around flashing unit – note relationship between schematic
and completed circuit
Switch to Programming software
Type in program and send to 08M – show lights flashing – OK
to copy/paste
Type in program and send to 08M –
show lights flashing – OK to copy/paste
Modify program from previous slide and
send to 08M -
show changed behavior-
Note: to do this on the 7404 circuit additional parts
would be needed
OK to copy/paste
Note that “b0” is a variable to store count number
Add switch & resistor to solderless proto board
Discuss need for 10K pull up resistor to give positive shift from + 5 to
ground on button push & to protect against dead short if it were not there
(PA # 2) Modify code and program 08M
- demo and pass around display unit
OK to copy/paste
Reprogram Lighthouse /w LEDs for Morse code
(PA # 3) Show Morse code unit -
if
time is good demo the end-user-programmable Morse unit
OK to copy / paste
2006 NGRC – 43 min to here
Reference lighthouse that is operating in the room
1:51- 23 total to here
Mention that each PICAXE pin can only
handle 20 ma so the transistor is needed to deal with higher current devices
Discuss need for PWM for this project
& how it works
Minimal discussion of software – OK
to copy/paste
(PA # 6) Pass around HO engine with
controller after demonstrating how it works
Discuss more sophisticated device /
software that slowly decelerates the motor based on the number of
“hits” the IR detector gets (H-Bridge or TIP-?? Power transistor)
Demonstrate engines on rollers
Put motor or Eggliner on rollers in
place of Halogen bulb as demo – extend “on” time for motor
Put motor or Eggliner on rollers in
place of Halogen bulb as demo – extend “on” time for motor
Put motor or Eggliner on rollers in
place of Halogen bulb as demo – extend “on” time for motor
2:38
About 8 minutes from speedometer to here
About 8 minutes from speedometer to here
2:10
2:10
2:10
2:10
2:10
2:43
1:57- 29 total to here