Let’s start with mounting the chip
carrier to the printed circuit
board (PCB).It makes it easier to
install the actual chip later.
Note the notch on the carrier,
and make it match the notch on
the PCB.
Installation hint: Put the carrier
in, then fold over a leg or two to
keep it locked in. It keeps it from
falling out!
S
TEP
1: C
HIP
CARRIER
www.solarbotics.com
1-866-276-2687
Page 5
B
UILDING
I
T
!
Step 1:Install
Chip Carrier
Notch
The way the PumLantern “Pums” is determined by resistors R1 and R2 - the
bigger the resistor, the longer the time interval between Pums. Some
people like frequent blips; others more sleepy longer intervals. Or mix ’em
up for a more random light show.
Choose what Pum interval you’d like:
0.3 seconds - use 1.5M (Brown, Green, Green)
0.6 seconds - use 2.2M (Red, Red, Green)
1 seconds - use 4.7M (Yellow, Purple, Green)
1.5 seconds - use 6.8M (Blue, Grey, Green)
R1 controls the Pum behavior of LED1 & LED2; R2 controls LED3 & LED4.
Not that it really matters, but some people like to have fanatical control
over how their devices work.
May we suggest you start with the 2.2M and 6.8M?
S
TEP
2: T
HE
FINE
ART
OF
RESISTOR
SELECTION
Did you pay close attention to those soldering instructions? Well, now it’s
time to put your new skill to use...
1.5M (Brown, Green, Green)
2.2M (Red, Red, Green)
4.7M (Yellow, Purple, Green)
6.8M (Blue, Grey, Green)
