FlySky FS-GT3B 3-Channel Transmitter
The FlySky FS-GT3B is a great transmitter at a great price.
One thing, though, is that with the stock firmware the 'expo' function
is non-operational (unless the manufacturer has fixed it). The
firmware can be upgraded to a new version that fixes the 'expo'
function and adds lots of great functionality. The trickiest part
of the upgrade is that you need to solder in a 4-pin header connector,
but it's not that hard to do. Below is a collection of links for
the FS-GT3B, including information on upgrading. The firmware
file I used was the "gt3b-ch3-0.4.1.s19".
FlySky FS-GT3B Digital 3ch 2.4ghz TX & RX LCD Transmitter & Receiver $39.95
http://www.hobbypartz.com/79p-gt3b-carradio-lcd.html
http://www.nitrorcx.com/79p-gt3b-carradio-lcd.html
http://site.hobbypartz.com/manual/FS-GT3B-Manual.pdf
FlySky Extra FS-GTR 3 Channel R/C Car 2.4Ghz Receiver 79P-GR3C $7.40
http://www.hobbypartz.com/fs-gtr3c-receiver.html
receiver: FS-GR3C (available on eBay)
Hobby King GT-2 2.4Ghz Receiver 3Ch HK-GT2_RX $5.66
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10625
FlySky GT3b Hack Tech Thread
http://www.rctech.net/forum/radio-electronics/538922-flysky-gt3b-hack-tech-thread.html
HOW TO: Reprogram the GT3B Radio
http://www.rctech.net/forum/8976363-post1081.html
Installation instructions from OverkillRC site:
http://www.overkillrc.com/GT3B/GT3B%20Hack%20Kit%20Install%20Instructions,%20Draft%202.1.pdf
OverkillRC GT3B Hack Firmware Kit $25.00
http://www.overkillrc.com/products.htm#ecwid:category=1230201&mode=product&product=5053464
STM8S-DISCOVERY $9.60
http://search.digikey.com/us/en/products/STM8S-DISCOVERY/497-10040-ND/2165967
Digi-Key 497-10040-ND
GT3B Volt Reg $12.50
http://www.overkillrc.com/products.htm#ecwid:category=1230201&mode=product&product=5851481
RECOM R-785.0-0.5
http://parts.digikey.com/1/parts/1884256-conv-dc-dc-0-5a-5v-out-sip-vert-r-785-0-0-5.html
Digi-Key 945-1037-ND
4 pin 90* Header $0.75
http://www.overkillrc.com/products.htm#ecwid:category=1230201&mode=product&product=5399079
12" 4 Pin Female-Female Extension $6.00
http://www.overkillrc.com/products.htm#ecwid:category=1230201&mode=product&product=5399081
GT3B Bearing Mod (ST Wheel) $4.00
http://www.overkillrc.com/products.htm#ecwid:category=1230201&mode=product&product=6133907
http://www.rctech.net/forum/radio-electronics/394162-flysky-gt3b-transmitter-85.html#post9037412
Firmware file "gt3b-ch3-0.4.1.s19":
http://www.overkillrc.com/GT3B-Firmware/0-4-1/gt3b-ch3-0.4.1.s19
https://github.com/semerad/gt3b/raw/master/Releases/gt3b-ch3-0.4.1.s19
Manual for "gt3b-ch3-0.4.1.s19":
http://www.overkillrc.com/GT3B-Firmware/0-4-1/MANUAL-0.4.1.txt
https://github.com/semerad/gt3b/raw/master/Releases/MANUAL-0.4.1.txt
gt3b releases on github:
https://github.com/semerad/gt3b/tree/master/Releases
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