Espressif ESP32-S2 Programming Manual page 1261

Chapter 3. ESP32-S2 Hardware Reference
Feature ESP32 Series
DAC Two 8-bit channels
Timers Four 64-bit general-purpose
timers, and three watchdog
timers
Temperature ✖
sensor
Touch sensor 10
Hall sensor 1
GPIO 34
SPI 4
LCD inter- 1
face
UART 3
I2C 2
I2S 2, can be configured to op-
erate with 8/16/32/40/48-bit
resolution as an input or out-
put channel.
Camera 1
interface
DMA Dedicated DMA to UART,
SPI, I2S,
SD/MMC host, EMAC, BT,
and Wi-Fi
RMT 8 channels
Pulse 8 channels
counter
LED PWM 16 channels
MCPWM 2, six PWM outputs
USB OTG ✖
TWAI® 1
controller
(compatible
with ISO
11898-1)
SD/SDIO/MMC 1
host con-
troller
SDIO slave 1
controller
Ethernet 1
MAC
ULP ULP FSM
Debug Assist ✖
Security
✓ ✓ ✓
Secure boot
✓ ✓ ✓
Flash en-
cryption
Espressif Systems
Table 1 – continued from previous page
ESP32-S2 Series
Two 8-bit channels
Four 64-bit general-purpose
timers, and three watchdog
timers
1
14
✖
43
4 with more modes, compared
with ESP32
1
1
2
2
1, can be configured to oper-
ate with 8/16/24/32/48/64-bit
resolution as an input or out-
put channel.
1
Dedicated DMA to UART,
SDIO slave, SPI, AES, SHA, I2S, and
ADC Controller
4 channels
ured to TX/RX channels
4 channels
8 channels
✖
1
1
✖
✖
✖
PicoRV32 core with 8 KB
SRAM, ULP FSM with more
instructions
✖
✓ ✓ ✓ Faster and safer, compared
with ESP32
✓ ✓ ✓ Support for PSRAM en-
cryption.
with ESP32
1250
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ESP32-C3 Series
✖
Two 54-bit general-purpose
timers, and three watchdog
timers
1
✖
✖
22
3
✖
1
2
1
1, can be configured to oper-
ate with 8/16/24/32-bit reso-
lution as an input or output
channel.
✖
General-purpose, 3 TX chan-
nels, 3 RX channels
1
, can be config- 4 channels
RX channels
1
✖
1
6 channels
✖
✖
1
✖
✖
✖
✖
1
✓ ✓ ✓ Faster and safer, compared
with ESP32
✓ ✓ ✓
Safer, compared ESP32
Continued on next page
2
, 2 TX channels, 2
2
Safer, compared with
Release v4.4