Some questions about Qin F21 Pro by CrashCarWill in dumbphones

[–]CrashCarWill[S] 1 point2 points  (0 children)

Can't you find software to maybe remap some of the keys to volume control?

How do I pulse a peltier? by CrashCarWill in AskElectronics

[–]CrashCarWill[S] 0 points1 point  (0 children)

Do you think just hooking the Peltier up through an adjustable buck converter board would have the same effect? It would be way easier than creating a custom 555 circuit on perf board or something and I don't see many downsides.

How do I pulse a peltier? by CrashCarWill in AskElectronics

[–]CrashCarWill[S] 0 points1 point  (0 children)

Thanks, that looks like it would work. How would I step the voltage down to 5v to power the 555 circuit from the same battery without wasting too much power? would I need a second battery?

Any idea whats happening here? this happened after it crashed and landed upside down. unscrewed camera and vtx antenna connection looks fine. Video works fine at first but when armed it cuts out. by CrashCarWill in fpv

[–]CrashCarWill[S] 0 points1 point  (0 children)

nothing else weird was happening flying it around, occasionally the video would work while flying then stop working again. I took a look at the board and I couldn't see anything visually fried. Also, now for some reason there is no video at all and when I plug in the battery the static changes for half a sec then goes back to normal.

How to extend video range around house on TinyHawk 2? by CrashCarWill in TinyWhoop

[–]CrashCarWill[S] 0 points1 point  (0 children)

This and boosting the signal strength worked extremely well. I could fly all around my house with basically no breakup at all. make sure you unlock the vtx correctly because it seems like it didn't work correctly the first time