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


pio run -e OpenEPaperLink_saola_AP --list-targets
Environment              Group     Name         Title                        Description
-----------------------  --------  -----------  ---------------------------  ----------------------
OpenEPaperLink_saola_AP  Platform  buildfs      Build Filesystem Image
OpenEPaperLink_saola_AP  Platform  erase        Erase Flash
OpenEPaperLink_saola_AP  Platform  size         Program Size                 Calculate program size
OpenEPaperLink_saola_AP  Platform  upload       Upload
OpenEPaperLink_saola_AP  Platform  uploadfs     Upload Filesystem Image
OpenEPaperLink_saola_AP  Platform  uploadfsota  Upload Filesystem Image OTA

```