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3 possibilities

a) its all a load of bs and you are just a troll (or less likely you suffer under mania grandiosa and severe delusions)
b) its legit and publicly known project, in that case you...

neat stuff, great quality of workmanship

my 50c tho:
- i would use a dc/dc converter for controller power supply(5V down from 9.6V) costs a bit but you would get nearly twice the battery life,...

okey, i managed to burn down my mpu with a broken power adapter, it outputed a sine not rectified signal and that pretty much fried my mpu and output fets

but no problem i replaced the burnt...

okey first design errors have come out with the proto board


most significantly lm317(voltage regulator) component in kicad default library is faulty, doesnt match up with footprint, and i have...

okey, im back from beijing and the pcb is ready, now i need to populate it with components. the tricky part is the rf amp that needs to be reflow soldered, rest i can do by hand i think

will get...

you should make 3 phase pwm driver for it so you could have it smoothly flashing through the entire spectrum during flight. that could be awesome, someone might mistake it for ufo

okey, so heres the conceptual schematic

all the component values still need to be calculated and the L2 and L3 coils probably should be tunable, also maybe a forward biased diode should be added...

mkay made, myself a resonator, aimed for 50MHz turned out 60MHz(measured with vna), not too bad considering the +-10% capacitors and hand wound coil(couldnt find 150nH coil at work). also got my...

ah yeah, heres a pic of the previous test pcb, the one that was manufactured incorretcly(bottom and top layer mixed up) just to give a sense of what kind of quality the pcbs are. no solder mask, tin...

yes i am aware of legal limitations in terms of available bandwidht and transmitted power, some +27dbm(500mW, 1/4 of gsm phone output) would be just about enough for any range my rockets are likely...

okey, first two steps cleared, have a working oscillator(only at 6.993MHz so far, but that should easy to change) and i have a power supply modulator. tomorrow i should get a camera module with...

Victory! got the PCB sent to fabrication(for free again), should have it by the time i get back from China

okey, i have finished the avionics design

heres the schematic and pcb drawing

it would be greatly appreciated if anyone had time and intrest to do a design review on it

anyway next step is a...

the camera module output is already pal standard, all you need to do is AM it to the carrier, that is just about as simple as radio modulation can get, digital tv ofcource is entirely different...

isnt 900+MHz outside the range of what most tv tuners can pick up?
also it would be perfectly legal in 433MHz range aswell(not that im too conserned about it)

now that i look at it there are...

right now i am pondering for future designs, there are plently cmos camera modules out there with nothing but power and composite(PAL) out connections.

in theory an ~80-800MHz carrier can easily(3...

right now i'm designing an avionics computer with:

telemetry
gps
accelerometer, barometers, etc analog inputs
communications logging

it will fit on 33mmX100mm pbc

in future systems im...

ftw - for the win

okey here is the overall schema of the flight computer, there are some caps etc still missing but most of it is all there

about the test pcb i planned to make: it went south, somehow the top and...

okey before the new year drinking i got my arm mpu working, so far only gpio tho. arm-gcc ftw!

okey i just started with software, im going with arm-gcc WinARM toolchain

so far i have a project that successfully builds and should blink leds on my pcb but i cant really try it before i get my...

Victory! package received

the PCB will take some time tho i think, id like to get it this year but maybe i have to wait till Monday or so

okey, farnell shipped my package will have it tomorrow
well most of it.... they cant send tranceivers before 28.02.2011

send a mail to them to cancel these tranceivers and send me other type...

yeah ive seen vids of Vern-s flight system, got a few ideas out of it

on the other news:

i have finished the paintjob(badly but thats to be expected of the first time)

and as a lucky stricke...

+33dbm RF amplifier sch

and heres the schematic for 2W RF amp for the tranceiver, no pcb yet tho, RF boards are a bit tricky

anyway i plan to make these two test boards now, make them...

that would certainly be a bell but i see little reason to have it as i already have GPS and two way radio link. also sirens are usually quite large and my space is very limited

gps,
2way radiolink(1W output power meaning the link works few km high as well) for setup and status broadcast,
autologging locally on an I2C eeprom,
accelorometer,
barometer(might as well...

so as a scratch built rocket also needs a scratch built avionics i have started with electronics design. just bought all the neccesary components(207€ bill ouch)

anywho, heres the electronics...

okey i did some cfd to gain insight to this issue(and others)

pressure distro around the rocket - zoom it!
so the DeltaP ranges from -1700 to +5000 Pa on the nosecone and i think the pressure...

okey i did run the sim again, but it didnt have time to converge, so its half finished, but i did already get some nice pics

surface pressure - sorry didnt find out how to exclude background...