jannik/c3lingo-interpreter-unit
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14 commits

Author SHA1 Message Date
Jannik Beyerstedt 65fc825250 [FIX] Schematics: Revised values and PCB errata text 
* fixed trim pot range at VU meter
* TODOs removed (5V V_LED didn't work out, 10uF at LM386 wasn't better, VU meter filtering not needed)
* phantom power voltage changed and readme chapter added
* hardware errata: gain pot. pins are swapped, ground plane isn't fully connected

Footprints and PCB aren't fixed to keep the schematic compatible with the existing PCBs!
 2021-09-05 20:08:08 +02:00
Jannik Beyerstedt b2358fc77f [DOC] Add BOM with some approx. prices 2021-06-03 23:42:35 +02:00
Jannik Beyerstedt 5edee823cb Schematics: Add missing functionality, add footprints, fix todos 
- Add On-Air button
- Lower frequency for the input HPF
- (final) button footprints
- (final) potentiometer values and footprints
 2021-05-30 22:42:17 +02:00
Jannik Beyerstedt 5629853d65 [DOC] reworked button/ switch options 2021-04-17 23:12:01 +02:00
Jannik Beyerstedt eccdc8b24f [DOC] reworked potentiometer options 2021-04-11 22:16:40 +02:00
Jannik Beyerstedt 3af2e00e27 [TIDY] restructure readme 2021-04-11 18:23:45 +02:00
Jannik Beyerstedt 1d267e46f7 Decide on a potentiometer for UI elements (schematic outdated!) 2021-02-15 23:04:56 +01:00
Jannik Beyerstedt e6a98dd660 Add UI layout draft 2021-02-07 18:00:54 +01:00
Jannik Beyerstedt d8e0d7cb9f Main: Summing design flaw fixed; better headphone vol. range 
- Multiple R and C value adaptions
- Line Input: No relevant difference between INA134 and own circuit -> LM833 chosen
- Signal busses/ summing module inputs fixed
- TODO: On-Air Button
- TODO: Update PCB layout
 2020-12-13 22:02:02 +01:00
Jannik Beyerstedt 1432d0e215 Refine headphone mix requirements, fix signal flow 2020-11-12 01:11:14 +01:00
Jannik Beyerstedt d1a367d481 Docs: Add signal flow graph 2020-11-02 00:57:57 +01:00
Jannik Beyerstedt 55a1890b3f Schematic: Proof of concept (one microphone) 2020-10-12 19:47:14 +02:00
Jannik Beyerstedt 48d69388ee [DOC] Add basic requirements 2020-10-04 09:32:09 +00:00
Jannik Beyerstedt 3152f11516 Initial commit 2020-10-04 08:49:50 +00:00