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STD simple microphone to speaker amplifier circuit
simple microphone to speaker amplifier circuit
License
Public Domain
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Update time：
2022-10-16 12:47:32
Creation time：
2022-10-16 12:43:47
Description
Description
This is simple microphone to speaker amplifier circuit by arduino.cc
We have followed the web [https://forum.arduino.cc/t/lm386-noise-problem/643703](https://forum.arduino.cc/t/lm386-noise-problem/643703) by user [tjones9163](https://forum.arduino.cc/u/tjones9163)
Design Drawing
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | SPEAKER-20MM-8OHM-1W | BUZZER1 | SPEAKER-20MM-8OHM-1W | 1 |
| 2 | 0.1uf | C1 | RAD-0.1 | 1 |
| 3 | 10uf | C2,C3 | CASE-A_3216 | 2 |
| 4 | 0.0.5uf | C4 | C0603 | 1 |
| 5 | 220uf | C5 | CASE-A_3216 | 1 |
| 6 | EAO-9745-PFA-C1033-28-008 | MIC1 | MIC2-D9.7XH4.5MM | 1 |
| 7 | 10k | R1,R2 | R0603 | 2 |
| 8 | 100K | RP1 | RES-ADJ_3386P | 1 |
| 9 | LM386MMX-1NOPB | U1 | MSOP-8 | 1 |
| 10 | 5v | V1 | HDR1X2 | 1 |
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