965 B
965 B
ZBS243 electronic shelf label
ref
hardware
- ESP32 + ≥ 4Mb PSRAM 2. ELS ZBS243 as 802.15.4 modem connected to the ESP32
- multiple ELSs with flashed firmware
power usage
the nrf power profiler kit 2 was used: ![boot_current-zbs.png] ![sleep-zbs.png] ![full-cycle-zbs.png]
mass flash event
- determine serial number from device
- extract MAC (8byte) from flash 0x74004? (found @ 0xFC06, 4 bytes for MAC ?)
- infopage MAC (8byte) from eeprom 0x10
- backup 64k flash
- backup 1k eeprom infopage (calibration data and possible MAC)
- merge and flash new firmware image
minor additional
- gpio max current for power
- add espressif dev board
- simple power toggle
- remote firmware update
- fix mapping txd and rxd in the serial println -> mostly wrong zbs-flasher labels
- change uart1 pins and get the led working
- lifepo4 battery mod?