neon11
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« on: February 17, 2010, 09:15:19 PM » |
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anyone can help us about our project salinity detector sa water ano anong mga sensor po ang gnagamit dito or mga methods para masukat kung gaano kadami ang asin sa tubig pahingi po ng schematic or opinyon about dito tnx in advance sa makakatulong kailangan lang po talaga namn
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The Philippine Electronics and Technology Forum
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« on: February 17, 2010, 09:15:19 PM » |
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DigitalMind
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« Reply #1 on: February 17, 2010, 09:22:34 PM » |
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hello neon11
kung may multimeter ka lagay mo sa mOhm reading tas dip mo yung probes mo sa water, saline, brine...
you should be able to get a reading. and that's the salinity....
for mcu naman you'll need an opamp para maamplify yung voltage then input sa ADC pins
for analog... guage should do the trick.
for calibration naman... medyo ligaw ako.
let's wait for some masters.
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neon11
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« Reply #2 on: February 17, 2010, 09:53:22 PM » |
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pano po ung cnasabi mo na gagamit ng opamp para maamplifie ung voltage my schematic diagram ka po ba para mas malinaw kong maintidihan tnx po
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maldihtah13
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« Reply #3 on: February 17, 2010, 10:04:49 PM » |
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eto  I connected this to a 16f877 and used its ADC to display the digital value. Calibration is also done automatically by displaying the procedure at the LCD. here's the source http://www.octiva.net/projects/ppm/ |
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rhreviewcenter
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« Reply #4 on: March 02, 2010, 08:02:50 PM » |
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pahingi nmn ng pbp code kung interface ntin sya sa gsm module.. halimbawa kung lalampas sya sa 8.5ph ehh mag ccend sya ng message @ master malditah.. tnx din sa mkapagbibigay ng code
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tomorrow you may still be here, but your dreams may not.... so make your choice............
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maldihtah13
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« Reply #5 on: March 02, 2010, 08:21:38 PM » |
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depende sa GSM module na gagamitin mo and process how to send messages.
ex
AT+CMGS="+63917XXXXXXX"
followed by the message then CTRL+Z
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NanotecH
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« Reply #6 on: March 03, 2010, 06:30:10 AM » |
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220V/10A input = 220V/30A output...Fact or Fiction? Myth or Reality?
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"Never tell the truth to people who are not worthy of it." - Mark Twain
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rhreviewcenter
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« Reply #7 on: March 03, 2010, 05:24:20 PM » |
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tnx po at master malditah, anyways meron po ba kaung alam na forum na gsm ang topic? need kc nmen ung buong code kung pano gumamit ng gsm module, kht mga projects lng basta gumamit sya ng gsm module, tnx in advance..., pogi points pla para sau sa pagbibigay mo ng ppm meter   |
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tomorrow you may still be here, but your dreams may not.... so make your choice............
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maldihtah13
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« Reply #8 on: March 03, 2010, 06:51:03 PM » |
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Andito rin sa forum.
Anu ba plano mo gamitin gsm module at PIC compiler.
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rhreviewcenter
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« Reply #9 on: March 03, 2010, 07:35:48 PM » |
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wala pa po akong plano if wat module gagamitin , sa code nmn po bka pbp, tnx master malditah
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tomorrow you may still be here, but your dreams may not.... so make your choice............
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neon11
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« Reply #10 on: March 03, 2010, 08:30:49 PM » |
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about po dun sa bnigay nyong ppm meter ano po maissugest nyo MCU ang pwd gamitin para malagyan sya ng gsm module and anong gsm module po ang maissugest nyo ? kailangan lang po talaga namn master malditah posible po ba yung naiicip kong gawin ung MCU based water salinity monitoring system using ung bingay nyong ppm meter + MCU+ gsm module tnx in advance kailangan po tlaga namn. pogi points po pra sa ppm meter
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maldihtah13
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« Reply #11 on: March 03, 2010, 10:15:58 PM » |
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Make sure may ADC ang MCU mo for salinity sampling saka UART for GSM communication. Try to find MCU with enough pins for your application.
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rhreviewcenter
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« Reply #12 on: March 12, 2010, 12:10:19 AM » |
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pwd na po ba ung pic 877 my adc tsaka usart na sya pwd po ba ung benq sa gsm module n gagamitn pwd po makahingi ng sample codes tnx in advance
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tomorrow you may still be here, but your dreams may not.... so make your choice............
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maldihtah13
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« Reply #13 on: March 12, 2010, 06:37:22 AM » |
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pwede nman ang 877. for the codes mas maganda ikaw mag-start then tanong mo na lang kung tama.
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neon11
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« Reply #14 on: March 17, 2010, 06:42:06 PM » |
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bale wala pa po kami background sa pagprogram ng mcu pwd po makahingi ng sample codes para mapagaralan ko po tnx in advance
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maldihtah13
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« Reply #15 on: March 17, 2010, 11:34:44 PM » |
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anu gagamitin mo picbasic, c or asm
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neon11
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« Reply #16 on: March 19, 2010, 06:35:03 AM » |
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pic basic po ung balak namin gamitin pahingi po ng codes para mapag aralan ko dis summer bale wala pa po kc kmi background sa pagpprogarm ng mcu tnx
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nyzmarky
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« Reply #17 on: March 21, 2010, 10:23:59 PM » |
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ano po mganda pgdetect sa laman ng bottle?ty
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maldihtah13
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« Reply #18 on: March 22, 2010, 12:05:20 PM » |
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ano po mganda pgdetect sa laman ng bottle?ty
ano ba kailangan mo madetect? |
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nyzmarky
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« Reply #19 on: March 24, 2010, 09:00:02 PM » |
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gmgwa po kc kmi ng cocktail mixer, so nghahanap po aq kung paano mdetect ung laman ng bottle.
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The Philippine Electronics and Technology Forum
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October 23, 2008, 07:16:14 PM
