1) Calculators Data IN / OUT rate (kbp/s)
2) Voltage of Input Output (maximum and minimum would be helpful, but standerd voltage would be fine)
any help would be great
cheers
-Andy
Cordless Link Cables
Started by
Andy.Davies
, Sep 02 2003 05:05 PM
5 replies to this topic
#1
Andy.Davies
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Posted 02 September 2003 - 05:05 PM
i am building a corles calc to calc link cable, ive sourced some sutable RF transmitter/Reciver modules, but i need to know some specs.
1) Calculators Data IN / OUT rate (kbp/s)
2) Voltage of Input Output (maximum and minimum would be helpful, but standerd voltage would be fine)
any help would be great
cheers
-Andy
1) Calculators Data IN / OUT rate (kbp/s)
2) Voltage of Input Output (maximum and minimum would be helpful, but standerd voltage would be fine)
any help would be great
cheers
-Andy
#2
betoe
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Posted 02 September 2003 - 06:14 PM
mmm... as i know the RS-232 serial port work with about 4.5~5 Volts, thats the function of the MAX-232 (CI of the link cable). I hope that you can make that project, it will be so good! 
#3
Andy.Davies
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Aikedo (Martial Art) -
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Algebra FX 2.0 ROM 1.01, FX9750G
Posted 02 September 2003 - 07:13 PM
the second i finish this project i will post about it, the range in a walled area (houses) is 75meters, in open ground it is about 300 Meters!
long enough range for everyone?
long enough range for everyone?
#4
CrimsonCasio
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Posted 02 September 2003 - 07:16 PM
wow, nice... 
#5
Andy.Davies
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Gaming (FPS, RTS, RPG)
Electronics
Rock Music (Preferably Loud)
Riley's (Pool & Snooker Bar)
Driving (Preferably fast)
Aikedo (Martial Art) -
Calculators:
Algebra FX 2.0 ROM 1.01, FX9750G
Posted 02 September 2003 - 07:28 PM
my only problem (at the moment) is that i have to use 2 transmitters and 2 recivers: one TX and RX at each end, unless anyone else can find a better component, and at under ?20:00 GBP
#6
Andy.Davies
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Computers UBBD (Using, Building, Breaking & Destroying)
Gaming (FPS, RTS, RPG)
Electronics
Rock Music (Preferably Loud)
Riley's (Pool & Snooker Bar)
Driving (Preferably fast)
Aikedo (Martial Art) -
Calculators:
Algebra FX 2.0 ROM 1.01, FX9750G
Posted 07 September 2003 - 08:40 AM
with concern to the link cordless link cable, i have dcided that i am going to use an IR transciver to make the link cordless.
here are tha advantages and disadvantages
Advantages (of IR) :
Smaller
Cheaper
Less power consuming
Disadvantages (of IR) :
Shorter range
line of sight required
as you can see IR has more advantages than diadvantages, so im going to buy the transivers, whan i get paid in a few weeks
here are tha advantages and disadvantages
Advantages (of IR) :
Smaller
Cheaper
Less power consuming
Disadvantages (of IR) :
Shorter range
line of sight required
as you can see IR has more advantages than diadvantages, so im going to buy the transivers, whan i get paid in a few weeks
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