quote:

---

Originally posted by Spockie-Tech:
Very Deja-Vu on the power supply design part.. we went through all the same stuff for IBCs switching regulator design years back. The requirement of Combat Bot controllers to run without brownouts or gate-drive problems on voltage sagging damn-near-flat batteries is a real PITA for designers..

---

been there done that, pain in the ass.
put an ultracap on the battery (with a diode so its only running the logic)
regulate it down to 5v or so
then use an isolated boost supply to make vbat +12v
another boost supply for gnd + 12v for the low side.

Add ~$20 to the controller cost ;->
_________________
Mechanical engineers build weapons, civil engineers build targets

I've just bought an OrangeRx T-SIX 2.4GHz DSM2 6CH Programmable Transmitter and OrangeRX RX3S 3-Axis Flight Stabilizer w/DSM2 Compatible 6CH 2.4Ghz Receiver.


http://www.hobbyking.com/hobbyking/store/__28494__OrangeRx_T_SIX_2_4GHz_DSM2_6CH_Programmable_Transmitter_w_10_Model_Memory_Mode_2_.html

http://www.hobbyking.com/hobbyking/store/__31586__OrangeRX_RX3S_3_Axis_Flight_Stabilizer_w_DSM2_Compatible_6CH_2_4Ghz_Receiver.html

So I'll report back in a few weeks on how they go with being used with robots
_________________
https://www.halfdonethings.com/

Sounds good
_________________
<Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls

cool....so has it got a gyro built in?
_________________
Miles Blow - Julie Pitts
www.mulesfilm.com.au
www.wombokforest.com.au

-Pickasso- Vivid Sportsman champion 2015

3-axis mems gyro. Just need to see if it's going to be any good in combat or if it's just going to cause a lot of troubles.
_________________
https://www.halfdonethings.com/

Honestly what use is a gyro like that in a combat robot? I'm betting on causing problems ..
_________________
( •_•)

( •_•)>⌐■-■

(⌐■_■)

YEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH

Either way, the RX does mixing and is DSM2
_________________
https://www.halfdonethings.com/

I also bought a $5.89 OrangeRX R615 receiver a few weeks back.

These when stripped down look like they will be a good option for Antweights and Beetleweights. Once the servo pins are removed, the PCB is around the same size as a Pololu B328 and is a smaller then the HK T6A RX's. Being DSM2 it will work with the high quality Spektrum radios (DX4 / DX5e / DX6i / DX7) as well as the cheap high feature HK DSM2 based radios (T-SIX / 9X / DSM2 modules).




_________________
https://www.halfdonethings.com/

I'd just love to get my hands on some receivers that have the pins facing out the side rather than out the top. Such a pain to package the top mount ones due to height
_________________
<Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls

T-SIX Transmitter and funky gyro RX arrived today.
Will see if I can find some time tonight to test them out an see how it all works.
_________________
https://www.halfdonethings.com/

That transmitter looks alot like a cheap knockoff of the DX6i that i have haha
_________________
Viggy!
1st Robot in progress!

quote:

---

Originally posted by Vignesh:
That transmitter looks alot like a cheap knockoff of the DX6i that i have haha

---

Yet another 3ch pistol radio - except this one is being offered at something around $21 plus shipping..! Looks a lot more analogue but perhaps makes it easier to modify. Seems to use the same receivers as the other hobbyking pistol radios (that are also compatible with the hk6's).



http://www.hobbyking.com/hobbyking/store/__31671__HobbyKing_HK_GT2B_3CH_2_4GHz_Transmitter_and_Receiver_w_Rechargable_Li_ion_Battery.html



_________________
( •_•)

( •_•)>⌐■-■

(⌐■_■)

YEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH

Do those receivers failsafe properly?

Tia
_________________
www.r2rcr.com