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by OldPCGuy
Sat Feb 25, 2017 5:52 pm
Forum: Automation, sensing and robotics
Topic: Soldering a Surface Mount Chip
Replies: 5
Views: 1041

Soldering a Surface Mount Chip

I'm considering one of these precision Ic2 IC chips; the Si7051; to use as a temperature reference to calibrate/check a bunch of DHT22 modules. http://www.mouser.com/_/?Keyword=Si705&FS=True It is a surface mount IC which I have no experience soldering. Has anyone used this chip or a similar package...
by OldPCGuy
Mon Feb 20, 2017 11:28 pm
Forum: Automation, sensing and robotics
Topic: Temperture Recorder - Standalone
Replies: 8
Views: 1304

Re: Temperture Recorder - Standalone

With no network the Zero cannot get a time date so time stamped data will be an issue. Options are wifi dongle to network, USB ethernet gadget mode, RTC hat or manually setting time/date. No guarantee I'll have access to wifi when deployed. I plan on a RTC for the Pi Zero. Any opinion on battery vs...
by OldPCGuy
Mon Feb 20, 2017 12:24 am
Forum: Automation, sensing and robotics
Topic: Temperture Recorder - Standalone
Replies: 8
Views: 1304

Re: Temperture Recorder - Standalone

dittoing: where is the autoexec.bat on a R-PI? Simple answer that works (on all platforms) please. I'm curious about that too. Check out this article about the power off button script running in the back ground. I'm not there yet but I assume another script to start whatever program you want. https...
by OldPCGuy
Sun Feb 19, 2017 3:22 pm
Forum: Automation, sensing and robotics
Topic: Temperture Recorder - Standalone
Replies: 8
Views: 1304

Temperture Recorder - Standalone

I have a Pi zero and want to build a standalone temperature humidity logger/recorder, just the Pi and the sensor, no keyboard or other peripherals. Basically some thing I can deploy, plugin, and comeback to and gracefully shut down without corrupting the recorded data. I understand the hardware side...
by OldPCGuy
Fri Feb 17, 2017 11:32 pm
Forum: Other projects
Topic: Pi Zero Case with Space
Replies: 2
Views: 1274

Re: Pi Zero Case with Space

Well No luck finding anything so fortunately a co-worker has a 3D printer.

Had him mod and print up this gem. Twice as deep and twice as high as a standard Pi zero case. All I need is a mini breadboard and I'm good to go! :D
by OldPCGuy
Fri Feb 17, 2017 12:29 am
Forum: General discussion
Topic: Soldering a Pi Zero GPIO
Replies: 4
Views: 3189

Soldering a Pi Zero GPIO

I consider myself good at soldering most things electronic. I use Sn63/Pb37 22 gauge no clean solder 1) Are there any do's and don't s for soldering a 2x20 pin header to a Pi Zero? I have a straight male pin or 90 deg female pin header. I also have one of those kits with male/male jumper wires. 2) S...
by OldPCGuy
Sun Feb 05, 2017 5:29 pm
Forum: Other projects
Topic: Pi Zero Case with Space
Replies: 2
Views: 1274

Pi Zero Case with Space

I'm looking at projects with Pi Zero and various sensors that will require bias/shunt resistors. I would like all the wiring to the GPIO pin housed within a single case with the Pi and just have the sensor leads exiting. I'm looking for something a little more touch proof than the stack Vesa type ca...

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