User`s manual

If PA6 = low, the key 6 is down.

If PA5 = low, the key 5 is down.

If PA4 = low, the key 4 is down.

Keypad scan routine sets PA0 low and PA1, PA2, PA3 high, then tests PA4-PA7.

If no key is down, PA4-PA7 remain high.

If PA7 = low, the key 3 is down.

If PA6 = low, the key 2 is down.

If PA5 = low, the key 1 is down.

If PA4 = low, the key 0 is down.

4.12 All jumpers

All jumpers on the component side:

J1 LCD connector

J2 BDM input

J3 SPI connector

J4 SCI1, ISP and I2C header

J5 X-Y-X Accelerometer module interface or IR distance sensor, GP2D12, interface.

J6 PP4 PWM output for Robot servo

J7 PP5 PWM output for Robot servo

J8 PP6 PWM output for Robot servo

J9 PP7 PWM output for Robot servo

J10 Selects speaker driving source. The speaker can be driven by PT5 (OC3) or PP7

(PWM).

J11 VCC for H-bridge, U7, SN754410N. If H-bridge is not used disconnect this jumper

to save power consumption.

J12 DC motor power select. The jumper is placed in the “two upper pins” if motors are

lower pins” if motors are powered by external 9V at of the terminal block T1.

J13 Keypad or GPIO female header

J14 Bluetooth and PM4-PM7 female header.

J15 Same as J13, but male header.

J16 Servo motor power select. The jumper is placed in the “two left pins” if motors are

right pins” if motors are powered by external 5V at the terminal block T2.

J17 CAN header

J18 RS485 header

All jumpers on the solder side:

J19 Connect / Disconnect 3.3V

J20 Connect / Disconnect 5V

J21 Connect / Disconnect power LED indicator

J22 Connects VRH to 5V

J23 Regulated 2.5V. It can be used for VRH if it’s connected to VRH pad and J22 is

cut.

J24 PT7, with the J25 it can be used to construct the BDM out header

J25 PT6, with the J24 it can be used to construct the BDM out header

J26 Enables RXCAN to receive CAN signal

J27 Enables RXD1 of SCI1 to receive RS485 signal