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Page: 4.2″ TG‐GR42
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1.3” EL013H2WRD Peghook 1.54″ HS‐154R‐N 13.3″ EL133C2WRN 2.1″ Chroma‐21 2.2″ BWRY EL022F6W4A 2.2″ EL022H3WRA 2.6″ BWRY Newton Pro EL026F6W4A 2.7″ ST‐GR27000 2.9″ Chroma 29 2.9″ EL029D2WRA SubGHz 2.9″ EL029GSWRN 2.9″ EL029H3WRA 2.9″ ST‐GM29MT1 2.9″ TG‐GM29MT1C ST‐GM29MTF 4.2″ Chroma 42 4.2″ ST‐GR42 4.2″ TG‐GR42 4inch AP 7.4″ ST GM7500N 7.5″ ST‐GR750BN 88MZ100 Changelog 88MZ100 Programming and interfacing Access point pinouts Adding an SD card BLE only AP Beginners Guide for an easy to build Access Point (aka spaghetti AP) Binary file nomenclature Build AP firmware CC1310 Based Chroma Tags Chroma 74 Chroma 74H Chroma Aeon 74 Chroma Series SubGhz Tags Content cards Default settings for new Tags ESP32‐PoE‐ISO_AP Firmware Updates Flashing SiLabs based M3 Newton Displays Generic CC1101 modules for SubGhz Google Apps Scripts Home ICS calendar Installing SubGhz Beta Led control LilyGo T‐Panel AP Lithium Ion replacement for CR2450 M2 NFC 2.9″ and 1.54″ M2 Tag Firmware changelog M3 Tag Firmware changelog Nano AP V2 Opticon 2.1″ BWRY EE‐214RY Opticon 2.9″ BWRY EE‐293RY Opticon 4.2″ BWR EE‐420R Opticon 7.5″ BWR EE‐750R Opticon CC2533‐based tags Picture Frame for 7.4" Price tags RF protocol Restoring Lost Serial Numbers in Chroma Tags SubGhz AP Configuration SubGhz support for the LilyGo T‐Panel Tag protocol timing Troubleshooting usage Uploading & Using Custom Fonts, with examples Using your own fork with OTA updates Yellow AP with EByte CC1101 module rf‐wake tagtype notes
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4.2″ TG‐GR42
Velocet edited this page 2024-10-07 22:19:06 +02:00
Table of Contents

Specs

  • CC2630 based core, 128 kbyte flash, 20 kbyte SRAM
  • 4.2" ePaper
  • 2 x CR2450 button cells
  • 1 LED at the top center
  • 2 buttons at the top left and right

Models

Model MAC Id Options Note Label
TG-GR420BC
Tag Information Note
FCC ID 2AFWN-TG-GR42

Pictures

Front Back PCB
Front Back PCB

Programming

This tag does not expose an SPI but a UART given it is not disabled in the CCFG (Customer Configuration) settings.

To read or write the flash you need a 3,3V USB to UART adapter:

  • Pull D/L low on reset to get into the bootloader
  • Connect DTR to D/L and RTS to Reset
  • Use TI CC13xx/CC2538/CC26xx Serial Boot Loader to read the first 128 kByte 
    $> ./cc2538-bsl.py
CC2630 PG2.3 (7x7mm): 128KB Flash, 20KB SRAM, CCFG.BL_CONFIG at 0x0001FFD8
Primary IEEE Address: 00:12:4B:DE:AD:BE:EF:D9