Baseboard
The baseboard is responsible for the following tasks:
- Generating 5V power supply
- Generating 3.3V power supply
- Measuring the battery voltage
- Controlling the stepper motors
- Decoding the data from the Rx35 receiver
- Level shifting the 3.3 V I²C-Bus to 5 V
- ATtiny2313 (8-bit Microcontroller)
- AD 7705 (2-Channel, 16-Bit, Sigma-Delta ADC)
- Deltan Rx35 (2.4 GHz Receiver)
- MAX 604 (3.3V, 300mA Linear Regulator)
![Baseboard Schematics] (https://raw2.github.com/ni-c/eve/master/documents/img/baseboard.png)
![Baseboard] (https://raw2.github.com/ni-c/eve/master/documents/img/baseboard_bb.png)
![Baseboard Back] (https://raw2.github.com/ni-c/eve/master/documents/img/baseboard_bb_back.png)
AtTiny Conn. TB6550 Description
=====================================
PD4 -> P1 -> P1 Enable
PD0 -> P2 -> P3 Dir X
PD5 -> P3 -> P4 Step Y
PD1 -> P4 -> P5 Dir Y
PB4 -> P5 -> P7 Dir Z
PD6 -> P6 ->
PB3 -> P7 -> P6 Step Z
PB0 -> P8 ->
PB2 -> P9 -> P2 Step X
PB1 -> P10 ->
