diff --git a/keyboard-lamp/README.md b/keyboard-lamp/README.md new file mode 100644 index 0000000..44ef976 --- /dev/null +++ b/keyboard-lamp/README.md @@ -0,0 +1,31 @@ +Keyboard Lamp +============= + +This is a keyboard lamp with adjustable brightness, that remembers last brightnbess level even when powered off. + +I've made it as a replacement for my broken ThinkLight. + +It uses ATtiny13, and the schematic is something like this: + + Vcc + | + +-------------+ + | | + | +---u---+ | + +--| |--+ Buttons + | | + +--[180R]-|<|---| |--BRT----o/ o---+ + | LED2 | | | + | --| t13 |--DIM----o/ o---+--- GND + GND | | + +--| |----+ + | +-------+ | LED1 + | | +-|<|--[47R]-- Vcc + GND | | + +-[10k]-|< Transistor NPN + | + GND + +LED1 is the bright white LED, LED2 is an indicator that the brightness has been saved. You can leave LED2 out if you want. + +**Fuses** and other settings can be found in the Makefile. \ No newline at end of file