This applicaiton note shows the current drawn by each of the ASCII configurations of the sixteen segment display.
A single display is wired though uCurrent on the mA range. Connected to a single panel. A bash sctipt running on a pi-zero goes thougth entire ASCII set. A multimeter reads the output voltage as a current.
Tested at various brightnesses, no complete coverage just yet. Colums are notated as LED.BRIGHTNESS_LVL
. All mesurements are in mA.
ASCII Code |
Char |
Example |
RED.14 |
RED.13 |
RED.12 |
RED.11 |
RED.10 |
RED.04 |
RED.02 |
RED.01 |
32 |
|
|
5.2 |
5.2 |
5.2 |
5.2 |
5.2 |
5.2 |
5.2 |
5.2 |
33 |
! |
|
69.6 |
64.1 |
59.6 |
54.8 |
50.9 |
23.6 |
|
|
34 |
" |
|
50.3 |
46.4 |
43.2 |
39.7 |
37.2 |
18.0 |
|
|
35 |
# |
|
175.5 |
160.7 |
147.8 |
136.0 |
125.1 |
54.5 |
|
|
36 |
$ |
|
213.5 |
195.6 |
180.0 |
165.6 |
152.3 |
66.1 |
|
|
37 |
% |
|
216.0 |
195.3 |
179.7 |
165.3 |
152.1 |
67.0 |
|
|
38 |
& |
|
187.0 |
172.0 |
158.2 |
145.6 |
133.9 |
58.4 |
|
|
39 |
' |
|
27.8 |
25.9 |
23.8 |
21.9 |
20.2 |
11.6 |
|
|
40 |
( |
|
62.1 |
57.4 |
52.8 |
48.6 |
44.7 |
21.5 |
|
|
41 |
) |
|
60.7 |
56.2 |
51.7 |
47.6 |
43.8 |
21.1 |
|
|
42 |
* |
|
171.6 |
157.6 |
145.0 |
133.4 |
122.7 |
53.6 |
|
|
43 |
+ |
|
92.2 |
85.0 |
78.2 |
71.9 |
66.2 |
30.3 |
|
|
44 |
, |
|
34.8 |
32.5 |
29.9 |
27.5 |
25.3 |
13.6 |
|
|
45 |
- |
|
40.9 |
37.8 |
34.8 |
32.0 |
29.4 |
15.4 |
|
|
46 |
. |
|
17.1 |
16.2 |
14.9 |
13.7 |
12.6 |
8.6 |
|
|
47 |
/ |
|
61.5 |
57.0 |
52.4 |
48.2 |
44.4 |
21.3 |
|
|
48 |
0 |
|
227.9 |
204.8 |
188.4 |
173.3 |
159.5 |
69.0 |
|
|
49 |
1 |
|
79.8 |
73.7 |
67.8 |
62.4 |
57.4 |
26.7 |
|
|
50 |
2 |
|
178.0 |
163.7 |
150.6 |
138.6 |
127.5 |
55.7 |
|
|
51 |
3 |
|
159.6 |
147.0 |
135.2 |
124.4 |
114.5 |
50.2 |
|
|
52 |
4 |
|
111.8 |
103.1 |
94.9 |
87.3 |
80.3 |
36.1 |
|
|
53 |
5 |
|
160.0 |
147.2 |
135.4 |
124.6 |
114.6 |
50.4 |
|
|
54 |
6 |
|
196.3 |
180.7 |
166.2 |
152.9 |
140.7 |
61.3 |
|
|
55 |
7 |
|
98.6 |
91.0 |
83.7 |
77.0 |
70.9 |
32.3 |
|
|
56 |
8 |
|
216.2 |
199.0 |
183.1 |
168.4 |
155.0 |
67.2 |
|
|
57 |
9 |
|
191.0 |
175.5 |
161.5 |
148.5 |
136.7 |
60.0 |
|
|
58 |
: |
|
56.8 |
52.8 |
48.6 |
44.7 |
41.1 |
20.0 |
|
|
59 |
; |
|
56.9 |
53.0 |
48.8 |
44.9 |
41.3 |
20.1 |
|
|
60 |
< |
|
79.9 |
73.8 |
67.9 |
62.5 |
57.5 |
26.7 |
|
|
61 |
= |
|
82.0 |
75.5 |
69.5 |
63.9 |
58.8 |
27.4 |
|
|
62 |
> |
|
79.4 |
73.2 |
67.3 |
62.0 |
57.0 |
26.6 |
|
|
63 |
? |
|
133.7 |
123.3 |
113.4 |
104.4 |
96.0 |
42.6 |
|
|
64 |
@ |
|
197.0 |
181.4 |
166.9 |
153.5 |
141.3 |
61.5 |
|
|
65 |
A |
|
178.0 |
163.8 |
150.7 |
138.6 |
127.5 |
55.8 |
|
|
66 |
B |
|
199.6 |
183.8 |
169.1 |
155.6 |
143.1 |
62.4 |
|
|
67 |
C |
|
141.5 |
130.3 |
119.9 |
110.3 |
101.5 |
45.0 |
|
|
68 |
D |
|
179.0 |
164.7 |
151.5 |
139.4 |
128.2 |
56.2 |
|
|
69 |
E |
|
160.3 |
149.0 |
137.1 |
126.1 |
116.0 |
50.6 |
|
|
70 |
F |
|
121.6 |
112.3 |
103.3 |
95.1 |
87.4 |
39.2 |
|
|
71 |
G |
|
182.2 |
167.9 |
154.5 |
142.1 |
130.7 |
57.1 |
|
|
72 |
H |
|
137.2 |
126.5 |
116.4 |
107.1 |
98.5 |
43.7 |
|
|
73 |
I |
|
137.7 |
126.8 |
116.7 |
107.3 |
98.7 |
43.9 |
|
|
74 |
J |
|
123.0 |
113.5 |
104.4 |
96.1 |
88.4 |
39.4 |
|
|
75 |
K |
|
125.7 |
116.0 |
106.7 |
98.2 |
90.3 |
40.3 |
|
|
76 |
L |
|
100.7 |
93.0 |
85.6 |
78.7 |
72.4 |
32.9 |
|
|
77 |
M |
|
137.6 |
126.7 |
116.6 |
107.2 |
98.7 |
43.9 |
|
|
78 |
N |
|
143.3 |
132.0 |
121.4 |
111.7 |
102.8 |
45.5 |
|
|
79 |
O |
|
182.8 |
168.4 |
154.9 |
142.5 |
131.1 |
57.3 |
|
|
80 |
P |
|
156.5 |
144.7 |
133.1 |
122.5 |
112.7 |
49.5 |
|
|
81 |
Q |
|
203.0 |
186.0 |
171.1 |
157.4 |
144.8 |
63.2 |
|
|
82 |
R |
|
179.2 |
165.1 |
151.9 |
139.7 |
128.6 |
56.4 |
|
|
83 |
S |
|
170.1 |
157.2 |
144.6 |
133.1 |
122.4 |
53.8 |
|
|
84 |
T |
|
97.8 |
90.6 |
83.4 |
76.7 |
70.5 |
32.2 |
|
|
85 |
U |
|
142.4 |
131.2 |
120.7 |
111.0 |
102.2 |
45.2 |
|
|
86 |
V |
|
107.0 |
98.8 |
90.9 |
83.6 |
76.9 |
34.8 |
|
|
87 |
W |
|
141.3 |
130.2 |
119.8 |
110.2 |
101.4 |
44.9 |
|
|
88 |
X |
|
107.2 |
99.0 |
91.1 |
83.8 |
77.1 |
34.8 |
|
|
89 |
Y |
|
151.5 |
139.1 |
128.0 |
117.7 |
108.3 |
48.0 |
|
|
90 |
Z |
|
142.1 |
130.7 |
120.2 |
110.6 |
101.8 |
45.2 |
|
|
91 |
[ |
|
106.0 |
98.0 |
90.2 |
82.9 |
76.3 |
34.5 |
|
|
92 |
\ |
|
61.2 |
56.8 |
52.3 |
48.1 |
44.2 |
21.3 |
|
|
93 |
] |
|
106.6 |
98.6 |
90.7 |
83.5 |
76.8 |
34.6 |
|
|
94 |
^ |
|
60.1 |
55.6 |
51.2 |
47.1 |
43.3 |
21.0 |
|
|
95 |
_ |
|
46.8 |
43.2 |
39.7 |
36.6 |
33.6 |
17.1 |
|
|
96 |
` |
|
31.3 |
29.2 |
26.9 |
24.7 |
22.7 |
12.7 |
|
|
97 |
a |
|
119.5 |
110.1 |
101.3 |
93.2 |
85.7 |
38.2 |
|
|
98 |
b |
|
128.6 |
118.7 |
109.2 |
100.5 |
92.4 |
41.0 |
|
|
99 |
c |
|
81.6 |
75.4 |
69.4 |
63.8 |
58.7 |
27.2 |
|
|
100 |
d |
|
125.8 |
116.1 |
106.8 |
98.3 |
90.4 |
40.2 |
|
|
101 |
e |
|
104.4 |
96.4 |
88.7 |
81.6 |
75.1 |
33.9 |
|
|
102 |
f |
|
119.0 |
108.9 |
100.2 |
92.2 |
84.8 |
38.0 |
|
|
103 |
g |
|
146.2 |
135.0 |
124.2 |
114.3 |
105.1 |
46.3 |
|
|
104 |
h |
|
103.8 |
96.0 |
88.3 |
81.3 |
74.8 |
33.8 |
|
|
105 |
i |
|
34.7 |
32.3 |
29.7 |
27.3 |
25.2 |
13.6 |
|
|
106 |
j |
|
106.9 |
98.6 |
90.7 |
83.5 |
76.8 |
34.6 |
|
|
107 |
k |
|
105.7 |
97.6 |
89.8 |
82.6 |
76.0 |
34.3 |
|
|
108 |
l |
|
60.9 |
56.5 |
52.0 |
47.8 |
44.0 |
21.2 |
|
|
109 |
m |
|
112.6 |
103.6 |
95.3 |
87.7 |
80.7 |
36.2 |
|
|
110 |
n |
|
80.0 |
73.9 |
68.0 |
62.5 |
57.5 |
26.8 |
|
|
111 |
o |
|
104.8 |
96.7 |
89.0 |
81.8 |
75.3 |
34.0 |
|
|
112 |
p |
|
123.7 |
114.2 |
105.1 |
96.7 |
88.9 |
39.6 |
|
|
113 |
q |
|
122.0 |
112.6 |
103.6 |
95.3 |
87.7 |
39.1 |
|
|
114 |
r |
|
56.7 |
52.6 |
48.4 |
44.5 |
41.0 |
20.0 |
|
|
115 |
s |
|
128.7 |
118.9 |
109.4 |
100.6 |
92.6 |
41.1 |
|
|
116 |
t |
|
105.5 |
97.6 |
89.8 |
82.6 |
76.0 |
34.2 |
|
|
117 |
u |
|
84.8 |
78.2 |
71.9 |
66.2 |
60.9 |
29.2 |
|
|
118 |
v |
|
60.7 |
56.2 |
51.7 |
47.6 |
43.8 |
21.2 |
|
|
119 |
w |
|
97.0 |
89.4 |
82.2 |
75.7 |
69.6 |
31.7 |
|
|
120 |
x |
|
107.8 |
99.5 |
91.5 |
84.2 |
77.5 |
34.9 |
|
|
121 |
y |
|
120.0 |
110.8 |
101.9 |
93.8 |
86.3 |
38.5 |
|
|
122 |
z |
|
78.8 |
72.9 |
67.1 |
61.7 |
56.8 |
25.4 |
|
|
123 |
{ |
|
126.2 |
116.6 |
107.3 |
98.7 |
90.8 |
40.3 |
|
|
124 |
| |
|
57.1 |
53.0 |
48.8 |
44.9 |
41.3 |
20.1 |
|
|
125 |
} |
|
127.6 |
117.8 |
108.4 |
99.7 |
91.7 |
40.7 |
|
|
126 |
~ |
|
92.3 |
85.2 |
78.4 |
72.1 |
66.3 |
30.4 |
|
|
127 |
(del) |
|
5.2 |
5.2 |
5.2 |
5.2 |
5.2 |
5.2 |
5.2 |
5.2 |