Seen on engadget today. Funny performance of Brett Domino and his trio minus one with stylophone. And the full trio cover of Katy Perry’s hit song…
Entries from October 15th, 2009
Driving a buzzer
October 12th, 2009 · No Comments · Project Wiggum
In this post I will add a buzzer to my prototype and show two ways to test it, first by bit-banging a pin then by using a hardware counter. Connecting the buzzer I am using a CEM-1203 magnetic buzzer (datasheet). This buzzer has peak frequency responses at 400Hz, 800Hz, 2kHz and 4kHz. To connect it [...]
Adding switches
October 5th, 2009 · 1 Comment · Project Wiggum
In this post I will add two switches to control the selection of one led among six. One of the button will increase the selection, the other one will decrease it. Connecting the switches I connect the switches on the PC0 and PC1 inputs and on the ground. I don’t need any external pull-up resistor [...]
