From 0b0b9b92584d32d06f42635a62e86953d2b475c8 Mon Sep 17 00:00:00 2001
From: biologist79 <57354741+biologist79@users.noreply.github.com>
Date: Tue, 18 May 2021 08:32:06 +0200
Subject: [PATCH] Added link
---
PCBs/Headphone with PCM5102a and TDA1308/README.md | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/PCBs/Headphone with PCM5102a and TDA1308/README.md b/PCBs/Headphone with PCM5102a and TDA1308/README.md
index 2876b26..f2f2c50 100644
--- a/PCBs/Headphone with PCM5102a and TDA1308/README.md
+++ b/PCBs/Headphone with PCM5102a and TDA1308/README.md
@@ -2,5 +2,7 @@
This is a pcb, that was kindly provided by a user of my ESPuino. It makes use of a DAC named 'PCM5102A' with a TDA1308 as amp. PCM5102A supports I2S, so it can connected in parallel to MAX98357a to the I2S-pins BCLK, LRC and DIN. Of course, it needs 3.3V and GND, too. Please note that SMD-technique is used.
The 6th pin of connector J1 is used to indicate whether there's a plug or not. That means if there is a plug, this pin is pulled to GND and therefore can be used to connect to MAX98357.SD. Doing so will mute MAX's amp and vice versa. Of course you need a special [headphone jack](https://www.conrad.de/de/p/cliff-fcr1295-klinken-steckverbinder-3-5-mm-buchse-einbau-horizontal-polzahl-3-stereo-schwarz-1-st-705830.html) to use this feature. Additionaly this 6th pin can be connected to the ESP32 in order to make use of the feature `HEADPHONE_ADJUST_ENABLE`. Doing so can optionally limit the headphone's maximum volume (configureable via GUI).
+Please note: the files in my GitHub-repository may be outdated regarding this PCB. Please have a look [here](https://u.pcloud.link/publink/show?code=kZjJVKkZOYso9U99qILNOMm5ehliaFtxldWX).
+
## Disclaimer
-PCB-circuit is provided 'as is' without warranty. As previously stated it was kindly provided by a user and I only can give limited support to it. However: it runs fine without any problems in my ESPuinos.
\ No newline at end of file
+PCB-circuit is provided 'as is' without warranty. As previously stated it was kindly provided by a user and I only can give limited support to it. However: it runs fine without any problems in my ESPuinos.