WB2L Wi-Fi Module
by Tuya Inc.
| Parameter | Value |
|---|---|
| MCU | BK7231T |
| Manufacturer | Beken |
| Series | BK72XX |
| Frequency | 120 MHz |
| Flash size | 2 MiB |
| RAM size | 256 KiB |
| Voltage | 3.0V - 3.6V |
| Wi-Fi | 802.11 b/g/n |
| Bluetooth | BLE v4.2 |
Flash memory map
Flash size: 2 MiB / 2,097,152 B / 0x200000
Hex values are in bytes.
| Name | Start | Length | End |
|---|---|---|---|
| Bootloader | 0x000000 | 68 KiB / 0x11000 | 0x011000 |
| App Image | 0x011000 | 1.1 MiB / 0x119000 | 0x12A000 |
| (reserved) | 0x12A000 | 32 KiB / 0x8000 | 0x132000 |
| OTA Image | 0x132000 | 664 KiB / 0xA6000 | 0x1D8000 |
| Key-Value Store | 0x1D8000 | 24 KiB / 0x6000 | 0x1DE000 |
| User Data | 0x1DE000 | 136 KiB / 0x22000 | 0x200000 |
Bootloader and app partitions contain CRC16 sums every 32 bytes. That results in the actual flash offsets/sizes not aligned to sector boundaries. To simplify calculations, the values shown in the table (extracted from bootloader's partition table) were aligned to 4096 bytes.