the steps towards a basic cansatmechmes.websnadno.cz/souteze/cansat/the_steps... · t-minus company...
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The steps towards a basic CanSat
Going through all this is necessary.
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Soldering
Connecting the sensors • What goes where? • Use hand-outs
4 February 2015 T-Minus Company Presentation 2
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Soldering
• Where to connect
4 February 2015 T-Minus Company Presentation 3
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Soldering
4 February 2015 T-Minus Company Presentation 4
• 5V • 0V
• Analogue inputs
• Connectors
• The side with the white lines is the top side
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Soldering
• Sensors
4 February 2015 T-Minus Company Presentation 5
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Soldering
• Start with the headers • Simple and easy starting point • A good place to practice soldering
4 February 2015 T-Minus Company Presentation 6
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Soldering
• Connecting components to PCB • Components on top side • Soldering on bottom side
• What is a good solder connection?
4 February 2015 T-Minus Company Presentation 7
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Soldering
• Good or bad?
4 February 2015 T-Minus Company Presentation 8
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Soldering
• Good or bad?
4 February 2015 T-Minus Company Presentation 9
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Soldering
• Good
4 February 2015 T-Minus Company Presentation 10
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Soldering
• Soldering takes time (between 1 and 2 seconds) • Heat up both surfaces • Then apply solder
• End result should be: • A smooth surface • Solder all around the component leg
4 February 2015 T-Minus Company Presentation 11
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Practical session
• First solder the headers • Solder and test sensors one by
one • Use the correct side for the
headers • Otherwise the + and – signs are on
the wrong position
4 February 2015 T-Minus Company Presentation 12
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CanSat kit sensors
Temperature • LM35
• NTC thermistor
Pressure • MPX4115A
4 February 2015 T-Minus Company Presentation 13
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CanSat kit sensors
MPX4115A • Analogue • 46mV/ kPa
4 February 2015 T-Minus Company Presentation 14
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CanSat kit sensors
LM35 • Analogue • 10mV/ºC
4 February 2015 T-Minus Company Presentation 15
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CanSat kit sensors
NTC thermistor • Analogue • Vout = (5V*R) / (R(T)+R)
4 February 2015 T-Minus Company Presentation 16