Chapter 1. Get Started
Boards Used HW Conflict Limitations Solution
8311A v1.3 + CAM
v1.1
I2S Controller ESP32-S2 has only one I2S inter-
face. But both extension boards
require connection via the ESP32-
S2’s I2S interface (LyraT-8311A
in Standard mode, ESP-LyraP-
CAM in Camera mode).
Utilize time division multiple ac-
cess, or use a different audio mod-
ule that can be connected via other
GPIOs or DAC.
TouchA v1.1 +
LCD32 v1.2
IO11, IO6 Touch actions cannot be triggered
because of the multiplexed pin
IO11. ESP-LyraP-LCD32 will not
be affected because its BLCT pin
will be disconnected from IO6.
Do not initialize IO11 (NET-
WORK) for your ESP-LyraP-
TouchA, or configure the BLCT
pin to -1 (= do not use BLCT) for
your ESP-LyraP-LCD32.
8311A v1.3 +
LCD32 v1.2
IO6 BLCT pin of ESP32-S2-Kaluga-1
will be disconnected from IO6.
Configure the BK pin to -1 (=
do not use BLCT) for your ESP-
LyraP-LCD32.
TouchA v1.1 +
8311A v1.3
Pin BT_ADC
on ESP-
LyraT-8311A
This pin is required for initializa-
tion of the six button on ESP-
LyraT-8311A. At the same time,
ESP-LyraP-TouchA needs this pin
for its touch actions.
If you plan to use buttons on
ESP-LyraT-8311A, do not initial-
ize pin IO6 (PHOTO) for your
ESP-LyraP-TouchA.
TouchA v1.1 +
CAM v1.1
IO1, IO2, IO3 Cannot be used simultaneously be-
cause of the mentioned multiplexed
pins.
For ESP-LyraP-TouchA, do not
initialize IO1 (VOL_UP),
IO2 (PLAY), and IO3
(VOL_DOWN).
TouchA v1.1 +
LCD32 v1.2 +
CAM v1.1
IO1, IO2,
IO3, IO11
Conflicts on the mentioned multi-
plexed pins.
For ESP-LyraP-TouchA, do not
initialize IO1 (VOL_UP), IO2
(PLAY), IO3 (VOL_DOWN),
and IO11 (NETWORK).
TouchA v1.1 +
LCD32 v1.2 +
8311A v1.3
IO6, IO11 If ESP-LyraT-8311A’s pin
BT_ADC is used to initialize the
board’s six buttons, IO6 and IO11
will not be available for the other
boards.
Do not initialize IO11 (NET-
WORK) for your ESP-LyraP-
TouchA. Also, if you need to use
BT_ADC, do not initialize IO6
(PHOTO).
Also, all extension boards and the JTAG interface share the same pins IO39, IO40, IO41 and IO42. For this reason,
the following may disturb the JTAG operation:
• Plugging in any extension board
• Debugging an application that is using an extension board
Hardware Revision Details
ESP32-S2-Kaluga-1 Kit v1.3
• The following pins re-assigned to fix the download issue
– Camera D2：GPIO36
– Camera D3：GPIO37
– AU_I2S1_SDI：GPIO34
– AU_WAKE_INT：GPIO46
• RGB pin header moved to the board’s edge
• All dip switches moved to the flip side for convenient operation
ESP32-S2-Kaluga-1 Kit v1.2 Initial release
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