MD-80 vs. Clone

[Microfunguy]

Hi Villemany.

I am trying to do the same procedure with the 808 keychain #3 camera.

I have just bought a BusPirate, can you give more information on how I use it to read and write the memory ?
What scripts or programmes are required for my Windows XP2 system ?

I have also downloaded your md80 binary zips but when I try to unzip them WinZip gives two errors ... unknown method and no data.

Thanks.


David

[derekread]

I've got two MD80 originals with the silcone case (I use them primarily on my bicycle helmet). The battery in each is stamped 3.7V 230mAh (others on this thread were asking). I have wired one using a 9V battecry clip connected to a 3x 1.2V AA battery holder for longer recording length (I have AA batteries rated at 1200mAh each. I have yet to try to record a full card (7.4 Gb for me), but I have done 1h20 with the original 230mAh and as a test 3h with my AA pack (way longer than my needs so stopped there). This would be quite heavy for rockets, but it is great for recording longer sessions when riding my bike and for other things. The 9V clip lets me switch between the original battery and my AA pack, though the original would now sit outside as well if I was to use it.

Instead of charging the AA via the camera USB I simply recharge them with a standard AA charger, which unfortunately resets the clock, but I have written a little app to write the correct txt clock settings file to my camera when plugged in so that becomes a trivial thing (it writes the file with T+1 minute, or longer, giving you time to restart and get a fairly accurate clock setting). However, what I really signed up on this forum for was to gain access to the hacked firmware containing the transparent fonts as I really find the date/time stamp annoying and would like it gone altogether. Hope I can get that working.

[U.S. Water Rockets1]

have you done such a mod?
can you post pictures?

thank you.

We have done it but it is sealed inside our rocket, so there's no way to make pictures of it now. We are going to build another one and we will remember to take pictures and videos of the build. It didn't seem like something anyone would ask to see at the time.

[chenrp]

derekread , can u upload pictures?

do u think that i can do this mod with 1 18650 battery?
how do you recommend doing this?

thank you.

[U.S. Water Rockets1]

derekread , can u upload pictures?

do u think that i can do this mod with 1 18650 battery?
how do you recommend doing this?

thank you.

The battery inside the camera is just connected by two wires. All you need to do is cut the wires from the battery and solder in some new wires which you connect to the replacement battery. If you use a higher capacity battery, note that the USB charger circuit in the camera is very weak, so you would need to take the new battery out and charge it with an external charger. In this case you could probably put a connector of some type in line with the wires so you can unplug the battery and plug it into the charger.

[chenrp]

thx,
but the weak charger will charge the new(high capacity) battery (in a few hours) right?

[Bladblaadje]

Is there a easy way to flash the MD80 camera to remove the time/date? i red the post about flashing it. It's great but i'm not so good at electronics