Do you love the mystery of astronomy and would like to unveil the secret mask of it? However, you’re felt irritating when you need to expose yourself under the old astronomy light, which cannot perfectly suit your demand? Stop the complaint today with an adjustable PIC astronomy light. Things that needed: An old desk lamp An old mouse For a good performance, you need to use a desk lamp with a patch of LCDs in place of the bulb. The mouse will be used as a light brightness controller. When he mouse is plugging into the lamp jack, the light will turn on automatically. You need to do a small modification on the mouse. Cut off those components inside the mouse, except the button for connecting to the microcontroller. Operating the light brightness with your mouse: Turning the light on and off Plug the jack into the controller: light on; Unplugging the jack: light off. Adjusting the brightness Pressing and holding the left or right mouse buttons to adjust the brightness. Adjusting the “boost” brightness Press and hold the middle mouse button. [read]
Isn’t the mowing job is one of the most boredom job in world? If you have a choice, would you rather sitting on a lazy chair at your lawn, with a radio transmitter on your hand that automatically controlling the mower to do the mowing job? Well, your dream can become a reality! Before it, you need to standby these tools:
Florin from YouriTronics has taken a video where he shows how to make very simple WiFi signal reflector and this way increase the signal level to one direction. For this he used a soda can cut in half. Probably everybody knows parabolic antennas, and ho do they reflect the signal from the focal point. If the WiFi antenna is placed along can shape the focal point, the signal waves will be directed to one direction. Of course, a soda can isn’t parabolic shape, but this cheap solution gives noticeable results.
I heard about this method an decided to try with my board. I needed to replace Atmega128 chip but didn’t have hot air solder for desoldering IC. I tried this weird desoldering technique, and I can say, that I satisfied. Tracks and other parts weren’t damaged. Atmega128 board is working again as before.