sachy.dev
Repo for designs & driver for a TA7642 powered lightning detector
Sensor design licensing
+7
-1
README.md
+7
-1
README.md
···
1
1
# Strike Sensor
2
2
3
-
Deets & License TBA
3
+
A TA7642 powered lightning detector circuit, connectable via a 3-pin JST-PH connector. It takes a 3V PWM input signal to tune the circuit to the TA7642's operating voltage, and outputs an analog signal to be read via an ADC. Sudden voltage drops on the order of 10-70us usually indicates detected strikes (or nearby electrical sparks). Best used with an AM loop antenna, which grants around 70km range sensitivity (perhaps more at night).
4
+
5
+
The sensor designs can be found in the [kicad](./kicad) folder.
6
+
7
+
## Licenses
8
+
9
+
The sensor hardware designs are licensed under the [CERN Open Hardware Licence Version 2 - Strongly Reciprocal](./kicad/LICENSE-CERN-OHL-S) license.
+289
kicad/LICENSE-CERN-OHL-S
+289
kicad/LICENSE-CERN-OHL-S
···
1
+
CERN Open Hardware Licence Version 2 - Strongly Reciprocal
2
+
3
+
4
+
Preamble
5
+
6
+
CERN has developed this licence to promote collaboration among
7
+
hardware designers and to provide a legal tool which supports the
8
+
freedom to use, study, modify, share and distribute hardware designs
9
+
and products based on those designs. Version 2 of the CERN Open
10
+
Hardware Licence comes in three variants: CERN-OHL-P (permissive); and
11
+
two reciprocal licences: CERN-OHL-W (weakly reciprocal) and this
12
+
licence, CERN-OHL-S (strongly reciprocal).
13
+
14
+
The CERN-OHL-S is copyright CERN 2020. Anyone is welcome to use it, in
15
+
unmodified form only.
16
+
17
+
Use of this Licence does not imply any endorsement by CERN of any
18
+
Licensor or their designs nor does it imply any involvement by CERN in
19
+
their development.
20
+
21
+
22
+
1 Definitions
23
+
24
+
1.1 'Licence' means this CERN-OHL-S.
25
+
26
+
1.2 'Compatible Licence' means
27
+
28
+
a) any earlier version of the CERN Open Hardware licence, or
29
+
30
+
b) any version of the CERN-OHL-S, or
31
+
32
+
c) any licence which permits You to treat the Source to which
33
+
it applies as licensed under CERN-OHL-S provided that on
34
+
Conveyance of any such Source, or any associated Product You
35
+
treat the Source in question as being licensed under
36
+
CERN-OHL-S.
37
+
38
+
1.3 'Source' means information such as design materials or digital
39
+
code which can be applied to Make or test a Product or to
40
+
prepare a Product for use, Conveyance or sale, regardless of its
41
+
medium or how it is expressed. It may include Notices.
42
+
43
+
1.4 'Covered Source' means Source that is explicitly made available
44
+
under this Licence.
45
+
46
+
1.5 'Product' means any device, component, work or physical object,
47
+
whether in finished or intermediate form, arising from the use,
48
+
application or processing of Covered Source.
49
+
50
+
1.6 'Make' means to create or configure something, whether by
51
+
manufacture, assembly, compiling, loading or applying Covered
52
+
Source or another Product or otherwise.
53
+
54
+
1.7 'Available Component' means any part, sub-assembly, library or
55
+
code which:
56
+
57
+
a) is licensed to You as Complete Source under a Compatible
58
+
Licence; or
59
+
60
+
b) is available, at the time a Product or the Source containing
61
+
it is first Conveyed, to You and any other prospective
62
+
licensees
63
+
64
+
i) as a physical part with sufficient rights and
65
+
information (including any configuration and
66
+
programming files and information about its
67
+
characteristics and interfaces) to enable it either to
68
+
be Made itself, or to be sourced and used to Make the
69
+
Product; or
70
+
ii) as part of the normal distribution of a tool used to
71
+
design or Make the Product.
72
+
73
+
1.8 'Complete Source' means the set of all Source necessary to Make
74
+
a Product, in the preferred form for making modifications,
75
+
including necessary installation and interfacing information
76
+
both for the Product, and for any included Available Components.
77
+
If the format is proprietary, it must also be made available in
78
+
a format (if the proprietary tool can create it) which is
79
+
viewable with a tool available to potential licensees and
80
+
licensed under a licence approved by the Free Software
81
+
Foundation or the Open Source Initiative. Complete Source need
82
+
not include the Source of any Available Component, provided that
83
+
You include in the Complete Source sufficient information to
84
+
enable a recipient to Make or source and use the Available
85
+
Component to Make the Product.
86
+
87
+
1.9 'Source Location' means a location where a Licensor has placed
88
+
Covered Source, and which that Licensor reasonably believes will
89
+
remain easily accessible for at least three years for anyone to
90
+
obtain a digital copy.
91
+
92
+
1.10 'Notice' means copyright, acknowledgement and trademark notices,
93
+
Source Location references, modification notices (subsection
94
+
3.3(b)) and all notices that refer to this Licence and to the
95
+
disclaimer of warranties that are included in the Covered
96
+
Source.
97
+
98
+
1.11 'Licensee' or 'You' means any person exercising rights under
99
+
this Licence.
100
+
101
+
1.12 'Licensor' means a natural or legal person who creates or
102
+
modifies Covered Source. A person may be a Licensee and a
103
+
Licensor at the same time.
104
+
105
+
1.13 'Convey' means to communicate to the public or distribute.
106
+
107
+
108
+
2 Applicability
109
+
110
+
2.1 This Licence governs the use, copying, modification, Conveying
111
+
of Covered Source and Products, and the Making of Products. By
112
+
exercising any right granted under this Licence, You irrevocably
113
+
accept these terms and conditions.
114
+
115
+
2.2 This Licence is granted by the Licensor directly to You, and
116
+
shall apply worldwide and without limitation in time.
117
+
118
+
2.3 You shall not attempt to restrict by contract or otherwise the
119
+
rights granted under this Licence to other Licensees.
120
+
121
+
2.4 This Licence is not intended to restrict fair use, fair dealing,
122
+
or any other similar right.
123
+
124
+
125
+
3 Copying, Modifying and Conveying Covered Source
126
+
127
+
3.1 You may copy and Convey verbatim copies of Covered Source, in
128
+
any medium, provided You retain all Notices.
129
+
130
+
3.2 You may modify Covered Source, other than Notices, provided that
131
+
You irrevocably undertake to make that modified Covered Source
132
+
available from a Source Location should You Convey a Product in
133
+
circumstances where the recipient does not otherwise receive a
134
+
copy of the modified Covered Source. In each case subsection 3.3
135
+
shall apply.
136
+
137
+
You may only delete Notices if they are no longer applicable to
138
+
the corresponding Covered Source as modified by You and You may
139
+
add additional Notices applicable to Your modifications.
140
+
Including Covered Source in a larger work is modifying the
141
+
Covered Source, and the larger work becomes modified Covered
142
+
Source.
143
+
144
+
3.3 You may Convey modified Covered Source (with the effect that You
145
+
shall also become a Licensor) provided that You:
146
+
147
+
a) retain Notices as required in subsection 3.2;
148
+
149
+
b) add a Notice to the modified Covered Source stating that You
150
+
have modified it, with the date and brief description of how
151
+
You have modified it;
152
+
153
+
c) add a Source Location Notice for the modified Covered Source
154
+
if You Convey in circumstances where the recipient does not
155
+
otherwise receive a copy of the modified Covered Source; and
156
+
157
+
d) license the modified Covered Source under the terms and
158
+
conditions of this Licence (or, as set out in subsection
159
+
8.3, a later version, if permitted by the licence of the
160
+
original Covered Source). Such modified Covered Source must
161
+
be licensed as a whole, but excluding Available Components
162
+
contained in it, which remain licensed under their own
163
+
applicable licences.
164
+
165
+
166
+
4 Making and Conveying Products
167
+
168
+
You may Make Products, and/or Convey them, provided that You either
169
+
provide each recipient with a copy of the Complete Source or ensure
170
+
that each recipient is notified of the Source Location of the Complete
171
+
Source. That Complete Source is Covered Source, and You must
172
+
accordingly satisfy Your obligations set out in subsection 3.3. If
173
+
specified in a Notice, the Product must visibly and securely display
174
+
the Source Location on it or its packaging or documentation in the
175
+
manner specified in that Notice.
176
+
177
+
178
+
5 Research and Development
179
+
180
+
You may Convey Covered Source, modified Covered Source or Products to
181
+
a legal entity carrying out development, testing or quality assurance
182
+
work on Your behalf provided that the work is performed on terms which
183
+
prevent the entity from both using the Source or Products for its own
184
+
internal purposes and Conveying the Source or Products or any
185
+
modifications to them to any person other than You. Any modifications
186
+
made by the entity shall be deemed to be made by You pursuant to
187
+
subsection 3.2.
188
+
189
+
190
+
6 DISCLAIMER AND LIABILITY
191
+
192
+
6.1 DISCLAIMER OF WARRANTY -- The Covered Source and any Products
193
+
are provided 'as is' and any express or implied warranties,
194
+
including, but not limited to, implied warranties of
195
+
merchantability, of satisfactory quality, non-infringement of
196
+
third party rights, and fitness for a particular purpose or use
197
+
are disclaimed in respect of any Source or Product to the
198
+
maximum extent permitted by law. The Licensor makes no
199
+
representation that any Source or Product does not or will not
200
+
infringe any patent, copyright, trade secret or other
201
+
proprietary right. The entire risk as to the use, quality, and
202
+
performance of any Source or Product shall be with You and not
203
+
the Licensor. This disclaimer of warranty is an essential part
204
+
of this Licence and a condition for the grant of any rights
205
+
granted under this Licence.
206
+
207
+
6.2 EXCLUSION AND LIMITATION OF LIABILITY -- The Licensor shall, to
208
+
the maximum extent permitted by law, have no liability for
209
+
direct, indirect, special, incidental, consequential, exemplary,
210
+
punitive or other damages of any character including, without
211
+
limitation, procurement of substitute goods or services, loss of
212
+
use, data or profits, or business interruption, however caused
213
+
and on any theory of contract, warranty, tort (including
214
+
negligence), product liability or otherwise, arising in any way
215
+
in relation to the Covered Source, modified Covered Source
216
+
and/or the Making or Conveyance of a Product, even if advised of
217
+
the possibility of such damages, and You shall hold the
218
+
Licensor(s) free and harmless from any liability, costs,
219
+
damages, fees and expenses, including claims by third parties,
220
+
in relation to such use.
221
+
222
+
223
+
7 Patents
224
+
225
+
7.1 Subject to the terms and conditions of this Licence, each
226
+
Licensor hereby grants to You a perpetual, worldwide,
227
+
non-exclusive, no-charge, royalty-free, irrevocable (except as
228
+
stated in subsections 7.2 and 8.4) patent licence to Make, have
229
+
Made, use, offer to sell, sell, import, and otherwise transfer
230
+
the Covered Source and Products, where such licence applies only
231
+
to those patent claims licensable by such Licensor that are
232
+
necessarily infringed by exercising rights under the Covered
233
+
Source as Conveyed by that Licensor.
234
+
235
+
7.2 If You institute patent litigation against any entity (including
236
+
a cross-claim or counterclaim in a lawsuit) alleging that the
237
+
Covered Source or a Product constitutes direct or contributory
238
+
patent infringement, or You seek any declaration that a patent
239
+
licensed to You under this Licence is invalid or unenforceable
240
+
then any rights granted to You under this Licence shall
241
+
terminate as of the date such process is initiated.
242
+
243
+
244
+
8 General
245
+
246
+
8.1 If any provisions of this Licence are or subsequently become
247
+
invalid or unenforceable for any reason, the remaining
248
+
provisions shall remain effective.
249
+
250
+
8.2 You shall not use any of the name (including acronyms and
251
+
abbreviations), image, or logo by which the Licensor or CERN is
252
+
known, except where needed to comply with section 3, or where
253
+
the use is otherwise allowed by law. Any such permitted use
254
+
shall be factual and shall not be made so as to suggest any kind
255
+
of endorsement or implication of involvement by the Licensor or
256
+
its personnel.
257
+
258
+
8.3 CERN may publish updated versions and variants of this Licence
259
+
which it considers to be in the spirit of this version, but may
260
+
differ in detail to address new problems or concerns. New
261
+
versions will be published with a unique version number and a
262
+
variant identifier specifying the variant. If the Licensor has
263
+
specified that a given variant applies to the Covered Source
264
+
without specifying a version, You may treat that Covered Source
265
+
as being released under any version of the CERN-OHL with that
266
+
variant. If no variant is specified, the Covered Source shall be
267
+
treated as being released under CERN-OHL-S. The Licensor may
268
+
also specify that the Covered Source is subject to a specific
269
+
version of the CERN-OHL or any later version in which case You
270
+
may apply this or any later version of CERN-OHL with the same
271
+
variant identifier published by CERN.
272
+
273
+
8.4 This Licence shall terminate with immediate effect if You fail
274
+
to comply with any of its terms and conditions.
275
+
276
+
8.5 However, if You cease all breaches of this Licence, then Your
277
+
Licence from any Licensor is reinstated unless such Licensor has
278
+
terminated this Licence by giving You, while You remain in
279
+
breach, a notice specifying the breach and requiring You to cure
280
+
it within 30 days, and You have failed to come into compliance
281
+
in all material respects by the end of the 30 day period. Should
282
+
You repeat the breach after receipt of a cure notice and
283
+
subsequent reinstatement, this Licence will terminate
284
+
immediately and permanently. Section 6 shall continue to apply
285
+
after any termination.
286
+
287
+
8.6 This Licence shall not be enforceable except by a Licensor
288
+
acting as such, and third party beneficiary rights are
289
+
specifically excluded.