Roomba iRobot virtualwall
- For Roomba 500, 600, 700, 800 and 900 series
- Uses two AA battery (2x1.5V=3V)
- ATTINY85 Microcontroller
<----------490us and 19 pulses----------------->
<---25us----> <--- 130ms (power down ) ---->
|-----| |-----| |-----| |-----| |------|
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
_____| |_____| |_____.....| |_____| |_______________......______________| |____
R1=47R
R2=200R
VCC=2x1.5V(AA battery) = 3V
