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Recent content by cyteh

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    What is the suitable rechargeable battery & battery charger for a small current?

    Re: What is the suitable rechargeable battery & battery charger for a small current? Leo, is that means that i can direct connect the output generator to the LDO chip, then, it'll be able to charge up the bettery? LDO can act as a battry charger? As what Tahmid said, current will only effect...
  2. C

    What is the suitable rechargeable battery & battery charger for a small current?

    Re: What is the suitable rechargeable battery & battery charger for a small current? This is the link for my power generator: **broken link removed** Thanks a lot.
  3. C

    What is the suitable rechargeable battery & battery charger for a small current?

    Re: What is the suitable rechargeable battery & battery charger for a small current? From the calculation, why need to multiply by 1.4 ? Thx Tahmid :). ---------- Post added at 07:49 ---------- Previous post was at 07:45 ---------- The power generator that i used is RS336-321. dc...
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    What is the suitable rechargeable battery & battery charger for a small current?

    Re: What is the suitable rechargeable battery & battery charger for a small current? Thx Tahmid :) From the internet, there are few type of 6v SLA battery which are 6v/4.2Ah, 6v/5.0Ah and 6v/12.0Ah. May i noe how i'm gonna to choose? ---------- Post added at 17:01 ---------- Previous post...
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    What is the suitable rechargeable battery & battery charger for a small current?

    I'd designed a prototype which using the hydro to generate electricity. The output generated is 7v and 17.33mA only and i wish to store the power generated. May i noe any suitable battery and battery charger for this prototype? Thanks :)
  6. C

    Is there any way to design a 5v battery driven circuit to charge with USB?

    Thx, Leo. Btw, may i noe any method to boost up the current? Since the current that my prototype generated is only 17mA which is not high enough to charge up a battery.
  7. C

    Is there any way to design a 5v battery driven circuit to charge with USB?

    Is that the boost circuit is used to boost up the current? will it effect the generated voltage? Do u have any suggestion for the boost circuit? Thx :)
  8. C

    Is there any way to design a 5v battery driven circuit to charge with USB?

    Fidelis Anyanti, is this circuit suitable for mine design as well? i'd design a micro hydro generator which able to generate 7v and 17mA. Can i use this as the input of the circuit u suggest? so that i can store the generated power. thx :)
  9. C

    How to communicate PIC with transceiver?

    May i noe how to write a C language program to communicate between PIC18F24K20 and transceiver MICRF605? There are 7pins connected in between tis two ICs: -RSSI -LD -DATAIXO -IO -SCLK -CS anyone gt the idea on where should i start to write the program?
  10. C

    how to use switch to control output?

    Thanks for ur guide, here are my program after those correction and it's working now. :D #include "p18f24k20.h" #define button1 PORTAbits.RA1 #define button2 PORTAbits.RA2 #define button3 PORTAbits.RA3 #define button4 PORTAbits.RA4 void main (void) { ANSELbits.ANS1=0; ANSELbits.ANS2=0...
  11. C

    how to use switch to control output?

    there are 4 switches where i named it as button1, button2, button3, button4 and they are originally connected to 2.5v. once i press the button, it'll go to LOW. When PIC detect LOW from the input, output=1. However, the program i did was not functioning well...it execute "LATBbits.LATB2=1"...
  12. C

    how to initialize port?

    thx Brian :) now i know how to initialize the port dy...
  13. C

    how to initialize port?

    I'm a beginner in programming. These is how i initialize portA as output... LATA= 0x00; TRISA=0x00; however, may i noe how to initialize portA where only RA<4:1> are analog input and the rest of RA are not using?

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