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STD Remote MP3 Player
Mode: Editors' pick
- 1
Update time：
2022-02-16 03:45:54
Creation time：
2019-11-14 10:18:12
Description
Plays selected mp3/wav on DFPlayer Mini on request from nRF24L01+ radio. 2 players are wired so that 2 sounds can be played concurrently. The DAC outputs from both palyers are mixed via the 1K resistors.
Design Drawing
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 0.1u | C1,C2 | RAD-0.1 | 2 |
| 2 | 10uf | C3 | CAP-D3.0XF1.5 | 1 |
| 3 | 470u | C4 | CAP-D3.0XF1.5 | 1 |
| 4 | 220u | C5 | CAP-D3.0XF1.5 | 1 |
| 5 | 100uf | C6 | CAP-D3.0XF1.5 | 1 |
| 6 | 1uF | C7 | CAP-D3.0XF1.5 | 1 |
| 7 | 1N4001 | D1 | DO-35 | 1 |
| 8 | Audio Jack | J1,J2 | 3PINHEADER | 2 |
| 9 | NRF24L01+ 2.4GHz wireless module | MK1 | NRF24L01 | 1 |
| 10 | 1k | R1,R3,R4,R5,R6,R7 | AXIAL-0.3 | 6 |
| 11 | 2k | R2,R8 | AXIAL-0.3 | 2 |
| 12 | 330R | R9 | AXIAL-0.3 | 1 |
| 13 | 1.5k | R10 | AXIAL-0.3 | 1 |
| 14 | 15k | R11 | AXIAL-0.3 | 1 |
| 15 | DFPLAYER | U1,U3,U7 | DFPLAYER MINI | 3 |
| 16 | ARDUINO PRO MINI | U2,U5 | ARDUINO PRO MINI | 2 |
| 17 | L7805ABV | U4 | TO-220(TO-220-3) | 1 |
| 18 | AMS1117-3.3 | U6 | SOT-223_L6.5-W3.5-P2.30-LS7.0-BR | 1 |
| 19 | Switch3x4x2 | KEY1 | KEY-3.0*4.0 | 1 |
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