82 lines
2.4 KiB
Markdown
82 lines
2.4 KiB
Markdown
# WR2LE Wi-Fi Module
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*by Tuya Inc.*
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[Product page](https://developer.tuya.com/en/docs/iot/wr2le?id=K9eio9y9e8i8c)
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- [General info](../../docs/platform/realtek-amb/README.md)
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- [Flashing guide](../../docs/platform/realtek-ambz/flashing.md)
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- [Debugging](../../docs/platform/realtek-ambz/debugging.md)
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Parameter | Value
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-------------|-------------------------
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Board code | `wr2le`
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MCU | RTL8710BX
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Manufacturer | Realtek
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Series | AmebaZ
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Frequency | 62.5 MHz
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Flash size | 2 MiB
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RAM size | 256 KiB
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Voltage | 3.0V - 3.6V
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I/O | 5x GPIO, 5x PWM, 1x UART
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Wi-Fi | 802.11 b/g/n
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## Usage
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**Board code:** `wr2le`
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In `platformio.ini`:
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```ini
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[env:wr2le]
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platform = libretuya
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board = wr2le
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framework = arduino
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```
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In ESPHome YAML:
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```yaml
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libretuya:
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board: wr2le
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framework:
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version: dev
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```
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## Pinout
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## Arduino Core pin mapping
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No. | Pin | UART | I²C | SPI | PWM | Other
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----|------|-----------|----------|----------------------|------|------
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D0 | PA15 | | | | PWM1 | SWDIO
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D1 | PA14 | | | | PWM0 | SWCLK
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D2 | PA05 | | | | PWM4 |
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D3 | PA22 | UART0_RTS | I2C0_SCL | SPI0_MISO, SPI1_MISO | PWM5 |
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D4 | PA12 | | | | PWM3 |
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## Flash memory map
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Flash size: 2 MiB / 2,097,152 B / 0x200000
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Hex values are in bytes.
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Name | Start | Length | End
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----------------|----------|-------------------|---------
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Boot XIP | 0x000000 | 16 KiB / 0x4000 | 0x004000
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Boot RAM | 0x004000 | 16 KiB / 0x4000 | 0x008000
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(reserved) | 0x008000 | 4 KiB / 0x1000 | 0x009000
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System Data | 0x009000 | 4 KiB / 0x1000 | 0x00A000
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Calibration | 0x00A000 | 4 KiB / 0x1000 | 0x00B000
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OTA1 Image | 0x00B000 | 788 KiB / 0xC5000 | 0x0D0000
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OTA2 Image | 0x0D0000 | 788 KiB / 0xC5000 | 0x195000
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Key-Value Store | 0x195000 | 24 KiB / 0x6000 | 0x19B000
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User Data | 0x19B000 | 400 KiB / 0x64000 | 0x1FF000
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RDP | 0x1FF000 | 4 KiB / 0x1000 | 0x200000
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RDP is most likely not used in Tuya firmwares, as the System Data partition contains an incorrect offset 0xFF000 for RDP, which is in the middle of OTA2 image.
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Additionally, Tuya firmware uses an encrypted KV or file storage, which resides at the end of flash memory. This seems to overlap system RDP area.
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