Schematic
VC C : 2 .7-5 .5V
VB G = 1.2 5V
A V D D = V B G (R 1+ R 2 )/R 1
D e fau lt: Clo se d - D ata ra te se t to 1 0SPS
O p e n jum p e r to se t to 8 0SPS
Incre ase s n o ise p e r rea d
E+
E-
A -
A +
R ed
B lack
W h ite
G re en or B lue
C om m o n Lo a d
C ell Co lors :
IO : 2 .7-5 .5V
ShieldYellow
VD D : 2.7-5.5 V
VC C vs VD D :
VC C is the m ain su p p ly vo ltag e, w h ile V D D se ts the
dig ita l lo g ic vo ltag e refe re n ce an d sh o u ld b e
co n n ec ted to m icrocon tro lle r supp ly v o lta g e , or
sh o rted to VC C.
H X 7 1 1
M M B T 44 0 3
G N D
10 0
10 0
10 u F
10 u F
G N D
VC C
G N D
VC C
VC C
G N D
8.2 K 20 k
G N D
VC C
10 K
VC C
G N D
0.1 u F
0.1 u F
0.1 u F
VC C
G N D
0.1 u F
G N D
G N D
VD D
VD D
3.3 u H
VD D
G N D
0.1 u F
U 1
VS U P
B A S E
A V D D
VF B
A G N D
VB G
IN A -
IN A +
IN B -
IN B +
PD _ SC K
D O U T
X O
X I
R A T E
D V D D
Q 1
R 3
R 4
C 6
C 7
R 2 R 1
R 5
C 1
C 5
C 2
JP 2
1
2
SJ2
JP 4
1
2
3
4
5
C 3
J1
1
2
3
4
5
L1
C 4
D A T
SC K
A -
A +
B +
B -
A V D D
Alex W en d e
N . S eidle
v1 1
R elea sed un der the C reative C o m m o n s
A ttribution S h are -A lik e 4 .0 L ice n se
https://crea tiveco m m o ns.o rg /lic ense s/b y -s a /4 .0 /
D e sig n b y :
R evisio n B y: