Am primit acum mult timp un elicopter de jucarie, de la cineva care il „maltratase” destul de bine. Era un coaxial cu comanda IR si efectiv avea elicele atat de „roase”, incat am crezut ca proprietarul l-a folosit sa tunda gazonul prin spatele casii 😀
Hey! I’ve managed to modify the remote control, reverse engineered in the PART 1 . The modification consists in soldering some wires to the coresponding pins of the IC, adding a homemade connector to the remote, and cutting a rather rectangular hole for that connector on the back side of the remote case. After getting the black connector through that back half of the case, I’ve fixed everything in place using hot glue. The next part it’s gonna be a video with a short test of the remote, controlled from the exterior using a relay board. Thanks!
After a looooong time of pause ( sorry for that…job and family issues, you get the idea), I’m back with a reverse engineering article of a radio remote control from a wireless socket kit (!like this one!) I’ve puchased a while ago to make my life easier. As having a rather messy working desk, it’s killing me inside when I have to turn on or off my desk lamp (the base of the lamp where’s the power button it’s hidden after tools and stuff) so a remote control it’s really welcomed.
Some time ago I’ve found a project of an USB programmer that used an ATTiny85 microcontroller to emulate all the functions of a FTDI programmer. The reason I wanted to build this programmer was mainly the cost and availability of the parts. I had some ATTinys laying around, but the problem were those two 3.6V Zener diodes that are not commonly available everywhere so I’ve managed to buy some sort of Zener diodes kit from banggood, and it was nice to found that certain value in the kit. However, Zener diodes are kind of optional and if you search about this subject you can easily find people reporting that the widely used 1N148 diodes connected in series are useful to drop the voltage to certain levels if Zener diodes are unavailable.
Anyways, the inspiration came from this site. I’ve used the drawn schematic to make my own in Cadsoft Eagle.
This is the original schematic…
And this is the schematic made by myself…