ROBOT EXPLORER LOG SIX
The total number of sensors were fit to only one Propeller chip and a shortage of two pins resulted. Therefore, two props will be used for the robot (at this time). The first prop chip has eleven free GPIO and the second prop chip has 4 free.
The two chips are divided as follows.
Chip 1
The Mobility Chip
Includes on board prop to prop communications
Broadcast video and tv telemetry
Ping obstacle avoidance, navigation, mapping
Servos to drive wheels
Three battery packs for one heater and two processors
Accelerometer for inclination feedback
Camera
EEPROM for mapping
EEPROM for code storage/booting
Prop Plug TX and RX
Chip 2
The Sensor Chip
Includes on board prop to prop communications
Broadcast video and tv telemetry
Light to Frequency Chip
PIR for life sciences
Temperature humidity sensor
Timekeeping clock calendar
Battery pack 3 for 6V heater
Methane sensor
Microphone & Audio in
Headset audio mono out
EEPROM store/run programs
Prop Plug TX & RX
Currently the design works with a two bit interface with the following truth table:
DUAL PROP 2-BIT INTERFACE TRUTH TABLE
on off
on on
off off
off on