2.9″ ST‐GM29XXF Low Temp
This is a 2.9" pricetag by Solum. It's been designed for application in lower temperature environments, for example supermarket refrigerators. Contrary to many other Solum tags, this tag has a plastic outer window over the EPD. An interesting thing: It has a dedicated IC on the RF wake antenna. Presumably, this allows the operator to wake the tag from a longer distance than normal.
- ZBS 243 / SEM9110 8051 based core, 64kbyte flash, 8kbyte XRAM, 256 bytes iRAM 16 MHz, 802.15.4 2.4Ghz radio
- 2.9" ePaper display SSD1619-like (black and white! no reds here)
- SPI EEPROM (probably a megabyte or something)
- Dedicated wake-IC
- 2x CR2450 Coin cell
| Tag Information | Note | |
|---|---|---|
| FCC ID | E2X-ST-GM29XXF | Missing 'wake-amplifier' IC in Internal Photos |
| Model | ST-GM29XXF | |
| MAC ID | 2D1 |
| ZBS243 Pin | EPD | Note |
|---|---|---|
| P1.7 | _CS | Active low |
| P2.1 | Busy | Active High |
| P2.2 | D/C | High for data, low for commands |
| P2.0 | _RESET | Active low |
| P0.0 | SPI_CLK | |
| P0.1 | MOSI/MISO | Used for both; same pin to read data |
A jig to program this tag in can be found here
| Type | Version: | MD5 (first 10kbyte) | Original Tag Mac (as written on case) | Note |
|---|---|---|---|---|
| 023 | ST-GM29XXF | C25E89D80FE9DA365843D42F834969A4 | 02188B012D17 |