Hardware Reference
In-Depth Information
12V solar cell
Figure 7-13
XBee radio attached to a
solar cell. To reveal the com-
ponents and wires beneath,
the detail photos show the
circuit without the 4700µF
capacitors and without the
XBee.
MAX8212
Voltage Monitor
10k
Ω
100k
Ω
x2
NC
Vin
Hyst.
NC.
2N3906
4700µF
x3
Thresh.
NC
Out
GND
3.3V
Voltage Reg
100k
Ω
Out
In
Xbee Radio
4.7k
Ω
10µF
1µF
Vcc
AD0 / DIO0
TX
AD1 / DIO1
1k
Ω
RX
AD2 / DIO2
DO8
AD3 / DIO3
RESET
RTS / AD6 / DIO6
PWM0 / RSSI
Ass't / AD5 / DIO5
220
Ω
PWM1
Vref
SLP
NC
220
Ω
DTR/DI8
CTS / DIO7
GND
AD4 / DIO4
1
5
10
15
20
25
30
35
40
45
50
55
60
A
B
C
D
E
A
B
C
D
E
MAX8212
F
G
H
I
J
F
G
H
I
J
1
5
10
15
20
25
30
35
40
45
50
55
60
