What's a VEX?
05-04-2007, 01:14 PM
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What's a VEX?
What are these units? Item number: 290110407158
Can we use regular (Futaba, etc.) servos, ESC's, etc with them?
Wondering.
Stu
http://cgi.ebay.com/VEX-ROBOTICS-TR...1QQcmdZViewItem
VEX ROBOTICS TECHNICAL INFO:
CONTROL FEQUENCY - CHANNEL 89, 75.970 MHZ
NUMBER OF CHANNELS - 6 (4 ANALOG AND 2 DIGITAL)
ANALOG CHANNELS - 2 POTENTIOMETERS, EACH WITH X AND Y AXIS
DIGITAL CHANNELS - 4 MOMENTARY SWITCHES(LOCATED ON THE BACK SIDE)
LIST OF CONTENTS
TRANSMITTER UNIT
TRANSMITTER FEQUENCY MODULE - CHANNEL 89
RF RECEIVER MODULE
RECEIVER CRYSTAL - CHANNEL 89
RECEIVER ANTENNA SLEEVE
ANTENNA SLEEVE HOLDER
5 KEPS NUTS
5 8-32 X 3/8" SCREWS
INVENTORS'S GUIDE INSERT
9" RJ-10 CABLE, INTERCONNET BETWEEN THE RF RECEIVER MODULE AND THE VEX MICRO CONTROLLER
THIS UNIT SELLS FOR OVER $100 AT ELECTRONIC STORES. CLICK THE LINK BELOW TO REFERENCE THIS UNIT AT THE MANUFACTURERS WEBSITE.
VEX ROBOTIC DESIGN $129.99
05-11-2007, 02:22 PM
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RE: What's a VEX?
Hey guys, here's some hard data for you. I bought the "GWS 4-channel R4PII 75Mhz Pico Receiver" from this page, and it works great with the Vex transmitter. All four of the analog channels come through, and in the expected order. I also had to buy the GWS crystals, because they are much smaller than the Vex ones. It seems that GWS makes generic radio parts that are meant to interact with a wide range of other manufacturers' equipment (Futaba, JR, Airtronics, Hi-Tec), so I suspect that while there is no "standard" RC receiver, the Vex equipment is reasonably interoperable with other common parts. This thing was definitely not a bad deal ($21 for a 4.4 gram receiver, plus $7 each for crystals). BoyntonStu, be sure to let us know if your receiver also works.
Hey that is great news! Thanks.
The GWS is a 'standard' receiver. Is it + or 1 shift?
I would assume that any other receiver interchangeable with the GWS 4-channel R4PII 75Mhz Pico Receiver would also be OK.
The question remains whether or not any 72 Mhz Futaba, Hitec, etc with the same shift as the GWS would work with the VEX crystal?
What range did you test?
Many thanks for your most useful data.
BoyntonStu
