Hardware Specifications
Field Guide 05 · 7 min read
About this hardware
MonstaTek M1
These specifications describe the MonstaTek M1 hardware. Follow the connector and recovery diagrams carefully.
Processor and display
| Item | Specification |
|---|---|
| Main MCU | STM32H573VIT6, 32-bit Arm Cortex-M33, 2 MB flash, LQFP100 |
| Wireless processor | ESP32-C6 for 2.4 GHz Wi-Fi and Bluetooth Low Energy; separate firmware |
| Display controller | ST7586s |
| Display | 128 × 64 monochrome display |
Radios and connectivity
| Module | Documented hardware |
|---|---|
| NFC / HF RFID | 13.56 MHz ST25R3916 with a PCB inductive-loop antenna; gain is not applicable or specified for this near-field antenna |
| LF RFID | 125 kHz interface with FDX-B reading at 134.2 kHz and an inductive air-coil antenna; gain is not applicable or specified for this near-field antenna |
| Sub-GHz | Si4463 with a −7 dBi, 38.1 × 8.9 mm helical multiband monopole; supports approved frequencies within the 315, 433, 868, and 915 MHz bands |
| Infrared | IR receive and transmit hardware for supported remote-control protocols |
| USB | USB Type-C with CDC virtual serial and microSD mass storage |
| microSD | Up to 256 GB; FAT32 or exFAT |
Identification
| Item | Value |
|---|---|
| Firmware license | GPL-3.0 |
| United States | FCC certified |
| FCC ID | 2BSWU-M1 |
| Canada | ISED certified |
| IC | 34778-M1 |
| Manufacturer | WILLTRONICS CO., LTD |
| Applicant | MonstaTek LLC, San Jose, California, USA |
United States and Canada certification
FCC and ISED certification
The MonstaTek M1 is FCC certified in the United States and ISED certified in Canada under the identifiers listed below.
| Region | Certification details |
|---|---|
| United States — FCC | FCC ID 2BSWU-M1, granted December 17, 2025. Grantee: MonstaTek LLC. TCB: IIA Lab Services, LLC. Three grants cover 125 kHz RFID under §15C, 13.56 MHz NFC under §15C, and Sub-GHz operation under §15.231 at 304.5–321.95, 433.075–434.775, and 915.0–927.95 MHz. |
| Wi-Fi / Bluetooth | The FCC filing notes that the device contains a Wi-Fi module; Wi-Fi and Bluetooth Low Energy use the ESP32-C6 module's certification. |
| RF exposure | The FCC filing meets the portable-use SAR exemption at 5 mm. |
| Canada — ISED | IC 34778-M1. New Single Certification under RSS-210 Issue 11, RSS-102 Issue 6, and RSS-Gen Issue 5. It covers 125 kHz RFID, 13.56 MHz NFC, and the listed Sub-GHz bands, with PCB, coil, and helical antenna types respectively. |
| Canadian representative | Representative attestation valid November 17, 2025 through November 17, 2027. |
Need help? Email support@monstatek.com and include the firmware version and screen name.