fabian/esmp3
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Changed from MCP23S17 to MCP23017. Lots of changes.

Browse Source 
Doesn't really work because of timing stuff.
This commit is contained in:
Fabian Schlenz
2019-11-10 14:45:33 +01:00
parent 88655b543d
commit 2ea2ec479a
14 changed files with 423 additions and 156 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
README.md Normal file
View File

@ -0,0 +1,25 @@
# Ports
| Device | Port | Connected to |
| ------ | ---- | ------------ |
| ESP | D0 | NFC: SDA |
| ESP | D1 | MCP: SCK (12) |
| ESP | D2 | MCP: SDA (13) |
| ESP | D3 | --free-- |
| ESP | D4 | --free-- |
| ESP | D5 | SCK |
| ESP | D6 | MISO |
| ESP | D7 | MOSI |
| ESP | D8 | MP3: XCS |
| MCP | B7 | MP3: XRESET
| MCP | B6 | AMP1: SD
| MCP | B5 | AMP2: SD
| MCP | B4 | MP3: XDCS
| MCP | B3 | MP3: CS
| MCP | B2 | MP3: DREQ
| MCP | A0 | BTN_PREV
| MCP | A1 | BTN_VOL_UP
| MCP | A2 | BTN_VOL_DOWN
| MCP | A3 | BTN_NEXT
Buttons pull to GND if pushed -> Internal Pull-Up needed!