ESP32S2_MQTT_MORE
ESP32S2_C_python
ESP32-S2
https://learn.adafruit.com/building-circuitpython/esp32-s2-build
https://github.com/adafruit/circuitpython/releases
ESP32-S2 vs ESP32
Compared with ESP32-S2 and ESP32, the difference is explained as follows
| Module | ESP32 | ESP32-S2 |
|---|---|---|
| Microcontroller | Xtensa dual-core 32-bit LX6 | Xtensa single-core 32-bit LX7 |
| Clock Frequency | 160/240 MHz | 160/240 MHz |
| Co-processor | ULP | ULP (RISC-V) |
| SRAM | 520 KB | 320 KB |
| ROM | 448 KB | 128 KB |
| RTC Memory | 16 KB | 16 KB |
| External SPIRAM | Up to 16MB | Up to 128MB |
| External Flash | No | Up to 1G |
| Wi-Fi (802.11 b/g/n) | HT20 | HT20 |
| ESP-MESH | Yes | Yes |
| Bluetooth | BT 4.2 BR/EDR & BLE | No |
| Ethernet | 10/100 Mbps | No |
| CAN | 2.0 | No |
| Time of Flight | No | Yes |
| GPIO (total) | 34 | 43 |
| Touch Sensors | 10 | 14 |
| SPI | 4 | 4 (OSPI) |
| I2C | 2 | 2 |
| I2S | 2 | 1 |
| UART | 3 | 2 |
| ADC | 18 (12-bit) | 20 (12-bit) |
| DAC | 2 (8-bit) | 2 (8-bit) |
| PWM (soft) | 16 | 8 |
| SDMMC | Yes | No |
| RMT (remote control) | Yes | Yes |
| USB OTG | No | Yes |
| LCD Interface | No | Yes |
| Camera Interface | No | Yes |
| Temperature sensor | Yes | Yes |
| Hall sensor | Yes | No |
| Security | Secure boot Flash encryption 1024-bit OTP | Secure boot Flash encryption 4096-bit OTP |
| Crypto | AES, SHA-2, RSA, ECC, RNG | AES-128/192/256, SHA-2, RSA, RNG, HMAC, Digital Signature |
| Low Power Consumption | 10uA deep sleep | Automatic RF power management 5uA in idle mode 24uA at 1% duty cycle |