My Smart Home Devices¶
A place for me to keep notes on the devices I have integrated into Home Assistant.
WiFi Light Switches¶
Treatlife DS01¶
Treatlife DS02 (WB3S)¶
The switch uses the Tuya WB3S module:
WB3S is a low-power embedded Wi-Fi+Bluetooth LE Dual protocol module that Tuya has developed. It consists of a highly integrated RF chip (BK7231T) and several peripheral components, with an embedded Wi-Fi network protocol stack and robust library functions. - source
Firmware¶
There are two projects creating replacement firmware for the module:
- LibreTuya: https://github.com/kuba2k2/libretuya
- Documentation: https://docs.libretuya.ml/
- OpenBK: https://github.com/openshwprojects/OpenBK7231T_App
Teardown¶
Switches¶
Switchbot Mini¶
The Switchbot Mini power monitoring switches (W1901400) that I purchased are currently flashed with Tasmota. I'd like to get them working with ESPHome.
Debugging Logs¶
Tasmota boot log
[18:43:42]ESP-ROM:esp32c3-api1-20210207
[18:43:42]Build:Feb 7 2021
[18:43:42]rst:0x3 (RTC_SW_SYS_RST),boot:0xf (SPI_FAST_FLASH_BOOT)
[18:43:42]Saved PC:0x40382e2c
[18:43:42]SPIWP:0xee
[18:43:42]mode:DIO, clock div:1
[18:43:42]load:0x3fcd5810,len:0x48
[18:43:42]load:0x403cc710,len:0x64c
[18:43:42]load:0x403ce710,len:0x216c
[18:43:42]SHA-256 comparison failed:
[18:43:42]Calculated: e0d75ff7e0926df9f88222e5bdef5d235358e8deede65e96e9b562dc3b033d94
[18:43:42]Expected: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
[18:43:42]Attempting to boot anyway...
[18:43:42]entry 0x403cc710
[18:43:42]
[18:43:42]00:00:00.000 HDW: ESP32-C3
[18:43:42]00:00:00.004 UFS: FlashFS mounted with 308 kB free
[18:43:42]00:00:00.012 CFG: Loaded from File, Count 7
[18:43:42]00:00:00.017 QPC: Count 1
[18:43:42]00:00:00.049 BRY: Berry initialized, RAM used=4521 bytes
[18:43:42]00:00:00.058 Project tasmota - Tasmota Version 12.2.0(tasmota)-2_0_5(2022-10-17T08:39:53)
[18:43:42]00:00:00.578 WIF: Connecting to AP1 mtconifer-iot Channel 6 BSSId 72:A7:41:10:6D:52 in mode 11n as tasmota-316744-1860...
[18:43:45]00:00:03.044 WIF: Connected
[18:43:45]00:00:03.300 HTP: Web server active on tasmota-316744-1860 with IP address 172.16.3.164
[18:43:52]00:00:10.099 RSL: INFO1 = {"Info1":{"Module":"ESP32C3","Version":"12.2.0(tasmota)","FallbackTopic":"cmnd/DVES_316744_fb/","GroupTopic":"cmnd/tasmotas/"}}
[18:43:52]00:00:10.111 RSL: INFO2 = {"Info2":{"WebServerMode":"Admin","Hostname":"tasmota-316744-1860","IPAddress":"172.16.3.164"}}
[18:43:52]00:00:10.123 RSL: INFO3 = {"Info3":{"RestartReason":"Software reset digital core","BootCount":4}}
Fuses
coniferhome-esphome on main [⇕!?] via 🅒 base
[I] ➜ espefuse.py -p /dev/cu.usbserial-0001 summary
Connecting....
Detecting chip type... ESP32-C3
espefuse.py v3.3.1
=== Run "summary" command ===
EFUSE_NAME (Block) Description = [Meaningful Value] [Readable/Writeable] (Hex Value)
----------------------------------------------------------------------------------------
Config fuses:
DIS_ICACHE (BLOCK0) Disables ICache = False R/W (0b0)
DIS_DOWNLOAD_ICACHE (BLOCK0) Disables Icache when SoC is in Download mode = False R/W (0b0)
DIS_FORCE_DOWNLOAD (BLOCK0) Disables forcing chip into Download mode = False R/W (0b0)
DIS_CAN (BLOCK0) Disables the TWAI Controller hardware = False R/W (0b0)
VDD_SPI_AS_GPIO (BLOCK0) Set this bit to vdd spi pin function as gpio = False R/W (0b0)
BTLC_GPIO_ENABLE (BLOCK0) Enable btlc gpio = 0 R/W (0b00)
POWERGLITCH_EN (BLOCK0) Set this bit to enable power glitch function = False R/W (0b0)
POWER_GLITCH_DSENSE (BLOCK0) Sample delay configuration of power glitch = 0 R/W (0b00)
DIS_LEGACY_SPI_BOOT (BLOCK0) Disables Legacy SPI boot mode = False R/W (0b0)
UART_PRINT_CHANNEL (BLOCK0) Selects the default UART for printing boot msg = UART0 R/W (0b0)
UART_PRINT_CONTROL (BLOCK0) Sets the default UART boot message output mode = Enabled R/W (0b00)
FORCE_SEND_RESUME (BLOCK0) Force ROM code to send a resume command during SPI = False R/W (0b0)
bootduring SPI boot
BLOCK_USR_DATA (BLOCK3) User data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
Efuse fuses:
WR_DIS (BLOCK0) Disables programming of individual eFuses = 0 R/W (0x00000000)
RD_DIS (BLOCK0) Disables software reading from BLOCK4-10 = 0 R/W (0b0000000)
Flash Config fuses:
FLASH_TPUW (BLOCK0) Configures flash startup delay after SoC power-up, = 0 R/W (0x0)
unit is (ms/2). When the value is 15, delay is 7.
5 ms
Identity fuses:
SECURE_VERSION (BLOCK0) Secure version (used by ESP-IDF anti-rollback feat = 0 R/W (0x0000)
ure)
MAC (BLOCK1) Factory MAC Address
= a0:76:4e:31:67:44 (OK) R/W
WAFER_VERSION (BLOCK1) WAFER version = 3 R/W (0b011)
PKG_VERSION (BLOCK1) Package version = ESP32-C3 R/W (0b000)
BLOCK1_VERSION (BLOCK1) BLOCK1 efuse version = 4 R/W (0b100)
OPTIONAL_UNIQUE_ID (BLOCK2) Optional unique 128-bit ID
= e5 0b 40 a2 c7 ed 29 50 6d 9e 1a 5f d2 a4 bd 9f R/W
BLOCK2_VERSION (BLOCK2) Version of BLOCK2 = 5 R/W (0b101)
CUSTOM_MAC (BLOCK3) Custom MAC Address
= 00:00:00:00:00:00 (OK) R/W
Jtag Config fuses:
SOFT_DIS_JTAG (BLOCK0) Software disables JTAG. When software disabled, JT = 0 R/W (0b000)
AG can be activated temporarily by HMAC peripheral
DIS_PAD_JTAG (BLOCK0) Permanently disable JTAG access via pads. USB JTAG = False R/W (0b0)
is controlled separately.
Security fuses:
DIS_DOWNLOAD_MANUAL_ENCRYPT (BLOCK0) Disables flash encryption when in download boot mo = False R/W (0b0)
des
SPI_BOOT_CRYPT_CNT (BLOCK0) Enables encryption and decryption, when an SPI boo = Disable R/W (0b000)
t mode is set. Enabled when 1 or 3 bits are set,di
sabled otherwise
SECURE_BOOT_KEY_REVOKE0 (BLOCK0) If set, revokes use of secure boot key digest 0 = False R/W (0b0)
SECURE_BOOT_KEY_REVOKE1 (BLOCK0) If set, revokes use of secure boot key digest 1 = False R/W (0b0)
SECURE_BOOT_KEY_REVOKE2 (BLOCK0) If set, revokes use of secure boot key digest 2 = False R/W (0b0)
KEY_PURPOSE_0 (BLOCK0) KEY0 purpose = USER R/W (0x0)
KEY_PURPOSE_1 (BLOCK0) KEY1 purpose = USER R/W (0x0)
KEY_PURPOSE_2 (BLOCK0) KEY2 purpose = USER R/W (0x0)
KEY_PURPOSE_3 (BLOCK0) KEY3 purpose = USER R/W (0x0)
KEY_PURPOSE_4 (BLOCK0) KEY4 purpose = USER R/W (0x0)
KEY_PURPOSE_5 (BLOCK0) KEY5 purpose = USER R/W (0x0)
SECURE_BOOT_EN (BLOCK0) Enables secure boot = False R/W (0b0)
SECURE_BOOT_AGGRESSIVE_REVOKE (BLOCK0) Enables aggressive secure boot key revocation mode = False R/W (0b0)
DIS_DOWNLOAD_MODE (BLOCK0) Disables all Download boot modes = False R/W (0b0)
ENABLE_SECURITY_DOWNLOAD (BLOCK0) Enables secure UART download mode (read/write flas = False R/W (0b0)
h only)
BLOCK_KEY0 (BLOCK4)
Purpose: USER
Encryption key0 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY1 (BLOCK5)
Purpose: USER
Encryption key1 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY2 (BLOCK6)
Purpose: USER
Encryption key2 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY3 (BLOCK7)
Purpose: USER
Encryption key3 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY4 (BLOCK8)
Purpose: USER
Encryption key4 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY5 (BLOCK9)
Purpose: USER
Encryption key5 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_SYS_DATA2 (BLOCK10) System data (part 2)
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
Spi_Pad_Config fuses:
SPI_PAD_CONFIG_CLK (BLOCK1) SPI CLK pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_Q (BLOCK1) SPI Q (D1) pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_D (BLOCK1) SPI D (D0) pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_CS (BLOCK1) SPI CS pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_HD (BLOCK1) SPI HD (D3) pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_WP (BLOCK1) SPI WP (D2) pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_DQS (BLOCK1) SPI DQS pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_D4 (BLOCK1) SPI D4 pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_D5 (BLOCK1) SPI D5 pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_D6 (BLOCK1) SPI D6 pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_D7 (BLOCK1) SPI D7 pad = 0 R/W (0b000000)
Usb Config fuses:
DIS_USB_JTAG (BLOCK0) Disables USB JTAG. JTAG access via pads is control = False R/W (0b0)
led separately
DIS_USB_DEVICE (BLOCK0) Disables USB DEVICE = False R/W (0b0)
USB_EXCHG_PINS (BLOCK0) Exchanges USB D+ and D- pins = False R/W (0b0)
DIS_USB_DOWNLOAD_MODE (BLOCK0) Disables use of USB in UART download boot mode = False R/W (0b0)
Wdt Config fuses:
WDT_DELAY_SEL (BLOCK0) Selects RTC WDT timeout threshold at startup = False R/W (0b0)
ESPHome Boot Log
``` [I] ➜ esptool.py --chip esp32c3 --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_mode dout --flash_size detect 0x0 build/kitchen-fridge-outlet/.pioenvs/kitchen-fridge-outlet/firmware.bin esptool.py v3.3.1 Found 3 serial ports Serial port /dev/cu.usbserial-0001 Connecting... Chip is ESP32-C3 (revision 3) Features: Wi-Fi Crystal is 40MHz MAC: a0:76:4e:31:67:44 Uploading stub... Running stub... Stub running... Changing baud rate to 921600 Changed. Configuring flash size... Auto-detected Flash size: 4MB Flash will be erased from 0x00000000 to 0x000c0fff... Flash params set to 0x032f Compressed 786832 bytes to 463199... Wrote 786832 bytes (463199 compressed) at 0x00000000 in 12.1 seconds (effective 519.8 kbit/s)... Hash of data verified.
Leaving...
Hard resetting via RTS pin...
[10:27:01]ESP-ROM:esp32c3-api1-20210207
[10:27:01]Build:Feb 7 2021
[10:27:01]rst:0x10 (RTCWDT_RTC_RST),boot:0xf (SPI_FAST_FLASH_BOOT)
[10:27:01]SPIWP:0xee
[10:27:01]mode:DOUT, clock div:1
[10:27:01]load:0x3c0a0020,len:0x1da70
[10:27:01]load:0x3fc8de00,len:0x2580
[10:27:01]load:0x42000020,len:0x91668
[10:27:01]load:0x3fc90380,len:0xd10
[10:27:01]load:0x40380000,len:0xdda8
[10:27:01]load:0x50000000,len:0x10
[10:27:01]SHA-256 comparison failed:
[10:27:02]Calculated: e159e39a79c819ff4e2d3877a9127907c0315d0dd5156f4b9d846052ca549fa6
[10:27:02]Expected: 16e0a551ee1cfc3ca0f4f55c7bc36a7289273a42a43c798cd454f972eed7f0da
[10:27:02]Attempting to boot anyway...
[10:27:02]entry 0x40380ae6
```
Fuses
[I] ➜ espefuse.py -p /dev/cu.usbserial-0001 summary
Connecting....
Detecting chip type... ESP32-C3
espefuse.py v3.3.1
=== Run "summary" command ===
EFUSE_NAME (Block) Description = [Meaningful Value] [Readable/Writeable] (Hex Value)
----------------------------------------------------------------------------------------
Config fuses:
DIS_ICACHE (BLOCK0) Disables ICache = False R/W (0b0)
DIS_DOWNLOAD_ICACHE (BLOCK0) Disables Icache when SoC is in Download mode = False R/W (0b0)
DIS_FORCE_DOWNLOAD (BLOCK0) Disables forcing chip into Download mode = False R/W (0b0)
DIS_CAN (BLOCK0) Disables the TWAI Controller hardware = False R/W (0b0)
VDD_SPI_AS_GPIO (BLOCK0) Set this bit to vdd spi pin function as gpio = False R/W (0b0)
BTLC_GPIO_ENABLE (BLOCK0) Enable btlc gpio = 0 R/W (0b00)
POWERGLITCH_EN (BLOCK0) Set this bit to enable power glitch function = False R/W (0b0)
POWER_GLITCH_DSENSE (BLOCK0) Sample delay configuration of power glitch = 0 R/W (0b00)
DIS_LEGACY_SPI_BOOT (BLOCK0) Disables Legacy SPI boot mode = False R/W (0b0)
UART_PRINT_CHANNEL (BLOCK0) Selects the default UART for printing boot msg = UART0 R/W (0b0)
UART_PRINT_CONTROL (BLOCK0) Sets the default UART boot message output mode = Enabled R/W (0b00)
FORCE_SEND_RESUME (BLOCK0) Force ROM code to send a resume command during SPI = False R/W (0b0)
bootduring SPI boot
BLOCK_USR_DATA (BLOCK3) User data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
Efuse fuses:
WR_DIS (BLOCK0) Disables programming of individual eFuses = 0 R/W (0x00000000)
RD_DIS (BLOCK0) Disables software reading from BLOCK4-10 = 0 R/W (0b0000000)
Flash Config fuses:
FLASH_TPUW (BLOCK0) Configures flash startup delay after SoC power-up, = 0 R/W (0x0)
unit is (ms/2). When the value is 15, delay is 7.
5 ms
Identity fuses:
SECURE_VERSION (BLOCK0) Secure version (used by ESP-IDF anti-rollback feat = 0 R/W (0x0000)
ure)
MAC (BLOCK1) Factory MAC Address
= a0:76:4e:31:67:44 (OK) R/W
WAFER_VERSION (BLOCK1) WAFER version = 3 R/W (0b011)
PKG_VERSION (BLOCK1) Package version = ESP32-C3 R/W (0b000)
BLOCK1_VERSION (BLOCK1) BLOCK1 efuse version = 4 R/W (0b100)
OPTIONAL_UNIQUE_ID (BLOCK2) Optional unique 128-bit ID
= e5 0b 40 a2 c7 ed 29 50 6d 9e 1a 5f d2 a4 bd 9f R/W
BLOCK2_VERSION (BLOCK2) Version of BLOCK2 = 5 R/W (0b101)
CUSTOM_MAC (BLOCK3) Custom MAC Address
= 00:00:00:00:00:00 (OK) R/W
Jtag Config fuses:
SOFT_DIS_JTAG (BLOCK0) Software disables JTAG. When software disabled, JT = 0 R/W (0b000)
AG can be activated temporarily by HMAC peripheral
DIS_PAD_JTAG (BLOCK0) Permanently disable JTAG access via pads. USB JTAG = False R/W (0b0)
is controlled separately.
Security fuses:
DIS_DOWNLOAD_MANUAL_ENCRYPT (BLOCK0) Disables flash encryption when in download boot mo = False R/W (0b0)
des
SPI_BOOT_CRYPT_CNT (BLOCK0) Enables encryption and decryption, when an SPI boo = Disable R/W (0b000)
t mode is set. Enabled when 1 or 3 bits are set,di
sabled otherwise
SECURE_BOOT_KEY_REVOKE0 (BLOCK0) If set, revokes use of secure boot key digest 0 = False R/W (0b0)
SECURE_BOOT_KEY_REVOKE1 (BLOCK0) If set, revokes use of secure boot key digest 1 = False R/W (0b0)
SECURE_BOOT_KEY_REVOKE2 (BLOCK0) If set, revokes use of secure boot key digest 2 = False R/W (0b0)
KEY_PURPOSE_0 (BLOCK0) KEY0 purpose = USER R/W (0x0)
KEY_PURPOSE_1 (BLOCK0) KEY1 purpose = USER R/W (0x0)
KEY_PURPOSE_2 (BLOCK0) KEY2 purpose = USER R/W (0x0)
KEY_PURPOSE_3 (BLOCK0) KEY3 purpose = USER R/W (0x0)
KEY_PURPOSE_4 (BLOCK0) KEY4 purpose = USER R/W (0x0)
KEY_PURPOSE_5 (BLOCK0) KEY5 purpose = USER R/W (0x0)
SECURE_BOOT_EN (BLOCK0) Enables secure boot = False R/W (0b0)
SECURE_BOOT_AGGRESSIVE_REVOKE (BLOCK0) Enables aggressive secure boot key revocation mode = False R/W (0b0)
DIS_DOWNLOAD_MODE (BLOCK0) Disables all Download boot modes = False R/W (0b0)
ENABLE_SECURITY_DOWNLOAD (BLOCK0) Enables secure UART download mode (read/write flas = False R/W (0b0)
h only)
BLOCK_KEY0 (BLOCK4)
Purpose: USER
Encryption key0 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY1 (BLOCK5)
Purpose: USER
Encryption key1 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY2 (BLOCK6)
Purpose: USER
Encryption key2 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY3 (BLOCK7)
Purpose: USER
Encryption key3 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY4 (BLOCK8)
Purpose: USER
Encryption key4 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY5 (BLOCK9)
Purpose: USER
Encryption key5 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_SYS_DATA2 (BLOCK10) System data (part 2)
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
Spi_Pad_Config fuses:
SPI_PAD_CONFIG_CLK (BLOCK1) SPI CLK pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_Q (BLOCK1) SPI Q (D1) pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_D (BLOCK1) SPI D (D0) pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_CS (BLOCK1) SPI CS pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_HD (BLOCK1) SPI HD (D3) pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_WP (BLOCK1) SPI WP (D2) pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_DQS (BLOCK1) SPI DQS pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_D4 (BLOCK1) SPI D4 pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_D5 (BLOCK1) SPI D5 pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_D6 (BLOCK1) SPI D6 pad = 0 R/W (0b000000)
SPI_PAD_CONFIG_D7 (BLOCK1) SPI D7 pad = 0 R/W (0b000000)
Usb Config fuses:
DIS_USB_JTAG (BLOCK0) Disables USB JTAG. JTAG access via pads is control = False R/W (0b0)
led separately
DIS_USB_DEVICE (BLOCK0) Disables USB DEVICE = False R/W (0b0)
USB_EXCHG_PINS (BLOCK0) Exchanges USB D+ and D- pins = False R/W (0b0)
DIS_USB_DOWNLOAD_MODE (BLOCK0) Disables use of USB in UART download boot mode = False R/W (0b0)
Wdt Config fuses:
WDT_DELAY_SEL (BLOCK0) Selects RTC WDT timeout threshold at startup = False R/W (0b0)
Reference¶
- https://github.com/kendallgoto/switchbota
- https://community.home-assistant.io/t/support-for-switchbot-plug-mini-w1901400-with-bluetooth-proxying/441893
localtuya¶
- Support updating MCU firmware
- Support setting dimmer lower range to 1%
pykasa¶
- Support PIR and LAS modules
Serial dump¶
Ceiling Fan Switch¶
Field Bytes Description
Header 2 0x55aa
Version 1 0x00
Command 1 0x06
Data length 2 Depends on the type and number of data units.
Data N Data units
Checksum 1 Start from the header, add up all the bytes, and then divide the sum by 256 to get the remainder.
55aa 00 06 0008 69 02 00 04 00 00 00 5a d6
55aa 00 06 0008 69 02 00 04 00 00 00 5d d9
55aa 00 00 0000 ff
55aa 00 06 0008 69 02 00 04 00 00 00 34 b0
55aa 00 06 0008 69 02 00 04 00 00 00 2b a7
55aa 00 06 0008 69 02 00 04 00 00 00 22 9e
55aa 00 06 0008 69 02 00 04 00 00 00 16 92
55aa 00 06 0008 69 02 00 04 00 00 00 0b 87
55aa 00 06 0008 69 02 00 04 00 00 00 0a 86
55aa 00 06 0008 69 02 00 04 00 00 00 0a 86
55aa 00 06 0005 6a 04 00 01 01 7a
dpid: 69
type: Value (4-bytes)
len: 4 bytes
value: 0x0a (10)
55AA 03 07 0008 02 02 00 04 00 00 00 0A 23
# https://templates.blakadder.com/treatlife_DS02S.html
# Dimming mode 1
55AA 00 06 0005 04 04 00 01 00 13
Last update: 2023-03-28