Moin
After a lot of experiments with Atmel and servos the schematic design for the leg controller is ready. Unfortunately the Atmega8 has the I2C interface on 2 of the ACDs so only 4 ACDs are left. Therefore I have to use 1 Atmega8 for each leg to control the 3 servos. Besides the PWM servo control I also added 3 PWM LED controllers (via transistor). Just in case later on I decide to “pimp my robot” Well at least I can use them for visual debugging when I train the robot to walk. The idea of this schematic is quite easy. There are

• 2 connectors for the bus (i2c and power)
• 3 connectors for LEDs (transistor connected)
• 3 PWM servo connectors (with current (resistor) measurement)
• 1 SPI interface to flash the atmel onboard

Well its not a big deal but maybe someone finds it usefull. Next week I have to fight with placing it on a board without to many crossings.

This entry was posted on Sunday, March 8th, 2009 at 22:32 and is filed under Atmel, Roboter. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.