The M5Stamp Cat-M is a compact global version of the dual-mode Cat-M and NB-IoT wireless communication module based on the SIM7080G chipset. It provides reliable cellular connectivity for IoT applications via a simple UART interface with AT command control.
This module supports most worldwide Cat-M and NB-IoT bands, making it suitable for international deployments. It features an onboard IPEX antenna interface convertible to SMA and supports various protocols like MQTT, CoAP, and LWM2M for cloud data transmission.
| Specification | Value |
|---|---|
| Chipset | SIM7080G |
| Network Modes | Cat-M1, NB-IoT |
| Cat-M Bands | B1/B2/B3/B4/B5/B8/B12/B13/B14/B18/B19/B20/B25/B26/B27/B28/B66/B85 |
| NB-IoT Bands | B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66/B71/B85 |
| Cat-M Speed | Uplink: 1119 Kbps, Downlink: 589 Kbps |
| NB-IoT Speed | Uplink: 150 Kbps, Downlink: 136 Kbps |
| Protocols | TCP/UDP/HTTP/HTTPS/TLS/DTLS/LWM2M/CoAP/MQTT |
| Interface | UART (115200 8N1) |
| SIM Card | MicroSIM |
| Power Supply | 5V DC |
| Dimensions | 30.1 x 20.1 x 5.5 mm |
The kit includes the 2dBi SMA antenna and conversion cable for easy integration.
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