els
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# electronic shelf display
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## 2.9" version
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```
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ZBS 243 / SEM9110 8051 based core, 64kbyte flash, 8kbyte XRAM, 256 bytes iRAM 16 MHz, 802.15.4 2.4Ghz radio\
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2.9" e-paper display (BWR) 296x128 SSD1619 or UC8151\
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1Mbyte SPI flash\
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2x CR2540 button cell\
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Option: NXP NFC controller (I2C)
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```
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## refs
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- https://openepaperlink.de/
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- https://github.com/jjwbruijn/OpenEPaperLink
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- https://github.com/atc1441/ZBS_Flasher
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-
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## mass flash guide
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1. backup 1kb eeprom
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2. backup 64k flash
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```
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python zbs_flasher mac write OpenEPaperLink/binaries/firmware.bin
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platformio run -e OpenEPaperLink_saola_AP
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platformio run -e OpenEPaperLink_saola_AP --target upload
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```
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## minor additional
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- gpi max current for power
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- gpio max current for power
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- add espressif dev board
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- simple power toggle
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- remote firmware update
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