Add intro, fix table formatting
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Fabian Affolter
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1 changed files with 47 additions and 42 deletions
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@ -14,59 +14,64 @@ features:
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- USB-C
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---
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### Features
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The LOLIN S2 Mini is a small (33.4 mm x 25.4 mm) development board. The form factor is almost the same as the well-known LOLIN D1 mini. This means that there is a high chance that the [D1 Mini Shields](https://www.wemos.cc/en/latest/d1_mini_shield/index.html) could also be uses with this board.
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## Technical details
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- ESP32-S2FN4R2 WiFi SoC
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- Xtensa® single-core 32-bit LX7 microprocessor, up to 240 MHz
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- Integrated 802.11 b/g/n WiFi 2.4GHz Transceiver, up to 150Mbps
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- Integrated RISC-V ULP Coprocessor
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- Integrated Temperature Sensor (-20°C to 110°C)
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- Operating Voltage: 3.0 to 3.6V
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- WiFi: 310mA (peak)
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- Modem-sleep: 12-19mA
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- Light-Sleep: 450µA
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- Deep-Sleep: 20-190µA
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- 320 KB SRAM
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- 4 MB Flash (embedded)
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- 2 MB PSRAM (embedded)
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- 16 KB SRAM in RTC (accessable by main CPU, 8 KB accessable by ULP coprocessor)
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- 4 Kbit eFuse (1792 bits reserved for user data)
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- 2 × 13-bit SAR ADCs, up to 20 channels (2 channels not available on ADC2 due to USB D+/D-)
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- 2 × 8-bit DAC
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- 14 × touch sensing IOs
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- 4 × SPI (2 usable due to embedded flash & PSRAM)
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- 1 × I2S
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- 2 × I2C
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- 2 × UART
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- 1 × DVP 8/16 camera interface, implemented using the hardware resources of I2S
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- 1 × LCD interface (8-bit serial RGB/8080/6800), implemented using the hardware resources of SPI2
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- 1 × LCD interface (8/16/24-bit parallel), implemented using the hardware resources of I2S
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- 1 × TWAI® controller compatible with ISO 11898-1 (CAN Specification 2.0)
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- Xtensa® single-core 32-bit LX7 microprocessor, up to 240 MHz
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- Integrated 802.11 b/g/n WiFi 2.4 GHz Transceiver, up to 150 Mbps
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- Integrated RISC-V ULP Coprocessor
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- Integrated Temperature Sensor (-20 °C to 110 °C)
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- Operating Voltage: 3.0 to 3.6 V
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- WiFi: 310 mA (peak)
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- Modem-sleep: 12-19 mA
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- Light-Sleep: 450 µA
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- Deep-Sleep: 20-190 µA
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- 320 KB SRAM
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- 4 MB Flash (embedded)
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- 2 MB PSRAM (embedded)
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- 16 KB SRAM in RTC (accessable by main CPU, 8 KB accessable by ULP coprocessor)
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- 4 Kbit eFuse (1792 bits reserved for user data)
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- 2 13-bit SAR ADCs, up to 20 channels (2 channels not available on ADC2 due to USB D+/D-)
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- 2 8-bit DAC
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- 14 touch sensing IOs
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- 4 SPI (2 usable due to embedded flash & PSRAM)
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- 1 I2S
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- 2 I2C
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- 2 UART
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- 1 DVP 8/16 camera interface, implemented using the hardware resources of I2S
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- 1 LCD interface (8-bit serial RGB/8080/6800), implemented using the hardware resources of SPI2
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- 1 LCD interface (8/16/24-bit parallel), implemented using the hardware resources of I2S
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- 1 TWAI® controller compatible with ISO 11898-1 (CAN Specification 2.0)
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- LED PWM controller, up to 8 channels
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- USB OTG 1.1 controller and PHY, with host and device support
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- Cryptographic Hardware Accelerators: AES, ECB/CBC/OFB/CFB/CTR, GCM, SHA, RSA, ECC (Digital Signature)
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- USB Type-C connector, for built-in ROM USB bootloader, serial port debugging, and USB device mode
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- 3.3V regulator ME6211C33
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- Maximum Output Current: 500mA （V<sub>IN</sub>＝4.3V, V<sub>OUT</sub>＝3.3V）
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- Dropout Voltage: 100mV@ I<sub>OUT</sub>＝100 mA
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- Operating Voltage Range: 2V～6.0V
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- Low Power Consumption: 40µA（typ.）
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- Standby Current: 0.1µA（typ.）
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- 27 × GPIO pins, plus `EN`, `VBUS`, `3V3`, `GND`, `GND`
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- 16 × pins (outer) compatible with WEMOS/LOLIN D1 mini shields
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- `EN` RESET button
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- `GPIO0` BOOT button
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- `GPIO15` LED (blue status LED)
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- USB-C connector, for built-in ROM USB bootloader, serial port debugging, and USB device mode
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- 3.3 V regulator ME6211C33
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- Maximum Output Current: 500 mA （V<sub>IN</sub>＝4.3 V, V<sub>OUT</sub>＝3.3 V）
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- Dropout Voltage: 100 mV@ I<sub>OUT</sub>＝100 mA
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- Operating Voltage Range: 2V～6.0V
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- Low Power Consumption: 40 µA （typ.）
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- Standby Current: 0.1 µA （typ.）
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- 27 GPIO pins, plus `EN`, `VBUS`, `3V3`, `GND`, `GND`
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- 16 pins (outer) compatible with WEMOS/LOLIN D1 mini shields
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- `EN` RESET button
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- `GPIO0` BOOT button
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- `GPIO15` LED (blue status LED)
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- Compatible with CircuitPython, MicroPython (default firmware), Arduino and ESP-IDF
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## Notes
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- There is an error on the v1.0 board silkscreen. GPIO12/13 should be reversed.
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## Purchase
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* [AliExpress](https://www.aliexpress.com/item/1005003145192016.html)
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## Learn More
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* [Manufacturer Specifications](https://www.wemos.cc/en/latest/s2/s2_mini.html)
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* [Schematics](https://www.wemos.cc/en/latest/_static/files/sch_s2_mini_v1.0.0.pdf)
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* [Dimensions](https://www.wemos.cc/en/latest/_static/files/dim_s2_mini_v1.0.0.pdf)
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* [Factory MicroPython firmware](https://www.wemos.cc/en/latest/tutorials/s2/get_started_with_micropython_s2.html)
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## Purchase
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* [AliExpress](https://www.aliexpress.com/item/1005003145192016.html)
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