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User talk:Daveb: Difference between revisions
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I just open the caliper case, cut the battery trace (which one doesn’t matter), drill two holes to allow the fine (wire wrap) wire to come out the top to a micro-miniature slide switch glued to the top. I always turn the switch off, rather than press some caliper “off” button, and find that a button cell lasts for many years. I would attach a picture if Sparkfun allowed, but it doesn’t. Caliper thickness is unchanged, and the outline is very nearly unchanged. | I just open the caliper case, cut the battery trace (which one doesn’t matter), drill two holes to allow the fine (wire wrap) wire to come out the top to a micro-miniature slide switch glued to the top. I always turn the switch off, rather than press some caliper “off” button, and find that a button cell lasts for many years. I would attach a picture if Sparkfun allowed, but it doesn’t. Caliper thickness is unchanged, and the outline is very nearly unchanged. | ||
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|'''temperature controller'''|| plan || to control cooker for soldering SMD. | |||
# ssr to control power to heating plate | |||
# type k thermocouple to measure temperature | |||
# attiny 84a dip | |||
# usb/serial converter to talk to netbook | |||
* solder-less breadboard with banana-sockets to link 2 through 4 | |||
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|} | |} | ||
