Sumovore Manual

The Solarbotics Sumovore
Building the Mainboard Electronics - 3
Step 12, 13, 14 - LED, 8 & 4 Position Sockets:
This LED is wired in series with the infrared emitters on the front sensor daughterboard. If you see this LED on, it means the IR
emitters are also on - a good sign of power and proper operation!
All LEDs have to be installed the right way around. Look carefully for the flat spot on the ring round the LED, and install it in
position ‘LED3’ so the flat matches the flat as marked on the PCB. Another tip is to make sure the shorter leg goes into the square
pad. Don’t worry about the second pair of pads below the original holes - they’re for future use for mounting an additional IR
Emitter for rearward-looking sensors.
The two pairs of 4 and 8 position headers interface the ‘brain daughterboard’ with this mainboard. It’s quite important that they
are installed vertically - straight up & down. The 8 socket headers go in positions ‘H1’ and ‘H2’, and the 4 socket headers go in
positions ‘H3’ and ‘H4’.
The best way to do this is to insert the header strip into the PCB, and solder just one of the pins to the solder pad. Flip it back
over, and bend the strip until it stands straight up from the PCB. Then go back, and solder up the rest of the pins.
Steps 12, 13, & 14: LED, 8 & 4 Socket Headers
Step 13:
8 Socket
Headers
(x 2)
Step 12:
Red LED
Step 14:
4 Socket
Headers (x 2)
Step 15, 16 & 17 - Front IR Sensors, Capacitors & LEDs
The Sumovore’s “eyes” are mounted at the front corners of
the PCB, with the filter capacitor and indicator LED just behind
each eye.
These IR sensors must be installed the correct
way, so make sure the bulge on the front of the
part matches what’s printed on the PCB in
positions ‘IR DET1’ and ‘IR DET2’.
The LEDs are just the same as the one in step
12, so use the same techniques to make sure it
gets installed the correct way in positions ‘LED1’ and ‘LED2’.
The 0.1µF filter capacitors don’t mind which way they get
installed, so insert and solder them in positions ‘C4’ and ‘C5’,
and we’ll get onto the next step!
Step 15:
IR Sensors (x 2)
Step 17:
Indicator LEDs
(x 2)
Step 16:
0.1µF capacitors
(x 2)
Steps 15, 16 & 17: IR Sensors, Caps, and LEDs
IR Installation
Finished