Author Topic: help sa pagpili ng microcontroller t_t (Read 680 times)

foodsupply · « **on:** February 12, 2011, 04:25:09 PM »

anu po bng type ng microcontroller magandang gamitin para sa pag count ng vehicles.. beginner lng po ako sa microcontroller.. pic o 8051? t_t

Philippine Electronics Forum · « **on:** February 12, 2011, 04:25:09 PM »

rdpzycho · « **Reply #1 on:** February 12, 2011, 06:51:55 PM »

^ mas madaling gumawa ng DIY programmer ng PIC.

'yung 8051 is one of the simplest MCU naman with part MPU capabilities, though 'di siya magagamit sa simple projects. pwede na 'yung mga simpleng PIC sa project niyo.

Philippine Electronics Forum · « **Reply #1 on:** February 12, 2011, 06:51:55 PM »

RiDdLeR??? · « **Reply #2 on:** February 12, 2011, 07:31:00 PM »

If you are a total beginner with MCUs, I would suggest to go with ATMEL AVR chips. Why?

1. ISP programmers for the AVR chip is very cheap.
2. It has a mature and proven optimizing C toolchain that is opensource (WinAVR/AVR-GCC). No more need to deal with demo or crippled compilers or looking for basag versions as with PICs.

I myself is starting to slowly migrate to atmel avr chips like atmega8, atmega8515. BTW, the atmega8515 is a pin-pin avr core replacement for the typical 8051 core.

Philippine Electronics Forum · « **Reply #2 on:** February 12, 2011, 07:31:00 PM »

foodsupply · « **Reply #3 on:** February 13, 2011, 07:55:05 PM »

pacensya n po.. ung iba pong terms n cnasabi nyo nireresearch ko p po sa net eh.. as in wala p po kc talga akong alam sa micro con nagbabasa p lng po ako sa basic nun t_t anu anu po b dapat knoconcder sa pagpili ng microcontroller t_t pa2long po.. salamat p osa reply t_t

Philippine Electronics Forum · « **Reply #3 on:** February 13, 2011, 07:55:05 PM »

wootwoot · « **Reply #4 on:** April 03, 2011, 05:08:44 PM »

think about the:
1. number of I/0 (input and output) required
2. programmer and MCU available

sa programming, dami pwede tumulong sa dito sa elab,,
nung nagsimula ako sa MCU e programmer una ko tnignan after which i found this site
i just posted a DIY programmer for s52, do visit the thread

Philippine Electronics Forum · « **Reply #4 on:** April 03, 2011, 05:08:44 PM »

foodsupply · « **Reply #5 on:** July 31, 2011, 09:57:44 PM »

kc po ung number ng slot sa vehicles eh nasa 45 po.. kung per slot po lagay ng sensor nid nmin ng 45 input pins.. eh nid p po n pdng iapply ung system sa ibng parking lot, so dapat po pd png ready para sa mas maraming slot ung system, ang max ko lng pong alam n mcu ay may 40 i/o pins ung pic n 40 pins.. maron n po kaming prorammer ng 40pins n pic at 20 pisn n atmel sa skul.. ang problem lng po panu iaacomodate ung sobrang daming sensors.. sabi daw po nung adviser nmin multiplexing kso d ko po alam panu un gagawin eh t_t

Arvie · « **Reply #6 on:** August 04, 2011, 10:14:48 PM »

Quote from: foodsupply on July 31, 2011, 09:57:44 PM

kc po ung number ng slot sa vehicles eh nasa 45 po.. kung per slot po lagay ng sensor nid nmin ng 45 input pins.. eh nid p po n pdng iapply ung system sa ibng parking lot, so dapat po pd png ready para sa mas maraming slot ung system, ang max ko lng pong alam n mcu ay may 40 i/o pins ung pic n 40 pins.. maron n po kaming prorammer ng 40pins n pic at 20 pisn n atmel sa skul.. ang problem lng po panu iaacomodate ung sobrang daming sensors.. sabi daw po nung adviser nmin multiplexing kso d ko po alam panu un gagawin eh t_t

required ba na gumamit ng microcontroller para dun sa gagawin mo sir?

gagana na po yan kahit counter ic lang ( at 7-segment display.)
http://www.kpsec.freeuk.com/components/74series.htm#74192

di mo na pati kelangan ng madaming input pins kung paghihiwalayin mo yung 'slot sensor' at 'slot counter'.

yung 'slot counter' eh simple up/down counter lang na nakikita sa entrance/exit ng parking lot.

makikita mo kung ilan yung nakapark using 7-segment-display.

then yung 'slot sensor' eh blocking sensor lang, no need na ikabit dun sa slot counter system mo kasi ginamit mo sya as indicator, not as detector.

- - -

kung required gumamit ng microcontroller.
gumamit ka na lang ng PIC16F84a.. 13 I/O Pins.

4 Pins for 1st digit ng display.
4 Pins for 2nd digit ng display.
1 Pin for Count Up.
1 Pin for Count Down.
3 more pins available.

I use assembly language for PIC.
and C Language for 8051.

madaming tutulong sayo dito.

I suggest pa din na gumamit ka nung counter ic. (74LS192)
para mas madali ang buhay.

foodsupply · « **Reply #7 on:** August 08, 2011, 10:58:22 AM »

ah.. meron po pala sir n ganitong IC.. hmm.. kung iaapply po nmin ung ganitong logic.. edi nid po nmin ng sensor n mag dedetect ng pag increment at isa pang decrement signal? tama po b? since ung per slot sensor nmin is for indication n lng?

Baltazar · « **Reply #8 on:** August 08, 2011, 08:46:50 PM »

Quote

I myself is starting to slowly migrate to atmel avr chips like atmega8, atmega8515. BTW, the atmega8515 is a pin-pin avr core replacement for the typical 8051 core

Thanks sa info Alyas...This means I can easily port my old AT89C51 based hardware to AVR seamlessly.

Philippine Electronics Forum · « **Reply #8 on:** August 08, 2011, 08:46:50 PM »

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